From sbarar at gmail.com Mon Sep 1 04:17:42 2008 From: sbarar at gmail.com (Sudev Barar) Date: Mon, 1 Sep 2008 09:47:42 +0530 Subject: [K12OSN] Time based content filtering In-Reply-To: <48BB09A4.1090301@snarlnet.com> References: <48BB09A4.1090301@snarlnet.com> Message-ID: <774593a20808312117p64c90058reeabb89d1321dd3f@mail.gmail.com> 2008/9/1 Carl Keil : > I remember seeing this discussed on this list before. (IIRC) Has anyone > figured out how to make DansGuardian do it's blocking business only at > certain times? Or, better, is there a way to tie content filtering to > certain LDAP logins? So that little kids are filtered and older students > and staff aren't? Any thoughts, scripts, pointers or URL's would be > appreciated. We are just in process of rolling out a trial of transparent proxy with time and group ACL solution. Give me a week to see if this works on a test bed. The steps used are : Block all outgoing traffic on port 80 - So users who do not set proxy or remove proxy settings are blocked Use proxy to authenticate all users. Based on authentication determine the group user belongs to. Based on group use ACL rules - so allowing more or less freedom Use whitelist and blacklist for each group. Switch the lists using cron to control time based rules. I have not used dansgaurd as the site is not a school site but a office site. -- Regards, Sudev Barar Read http://blog.sudev.in for topics ranging from here to there. PS: I know most of people do not follow email niceties (mostly they are not aware) but if you follow bottom post/in-line post style of email conversations it becomes a whole lot easier to carry on meaningful dialogue and you can snip out what is not meaningful too. Most people just hit reply button and top post leaving prior message appended uselessly at bottom. See if you can adopt this style and persuade others. In case you are already doing this ..... great, spread the message. From ahodson at elp.rr.com Mon Sep 1 13:11:25 2008 From: ahodson at elp.rr.com (Alan Hodson) Date: Mon, 01 Sep 2008 07:11:25 -0600 Subject: [K12OSN] Re: Centos 5.2 (What gives?) In-Reply-To: <48B81496.61E2.006C.0@episd.org> References: <20080829160030.C333F619E55@hormel.redhat.com> <48B81496.61E2.006C.0@episd.org> Message-ID: <48BBE9FD.5080504@elp.rr.com> OK folks - who's in charge of the "don't acknowledge this posting" category??? As far as queries go, mine is just a little out of the ordinary, and YES, it counts on the collective memory and desire to help others... What gives? Alan Hodson wrote: > After having my "fav_tips" cleaned out from my Groupwise box (we are switching to Zimbra) I could not find the reference I had linked where one of our gurus explained how to add the LTSP thin client (or was it the k12ltsp?) module to the standard Centos 5.2 install, and my googling skills appear to be defective... Anybody out there can help me with the proper link? > Have a safe and restful weekend y'all > alan > El Paso ISD, TX > -=o=- > > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > > From microman at cmosnetworks.com Mon Sep 1 14:04:03 2008 From: microman at cmosnetworks.com (Terrell Prude' Jr.) Date: Mon, 01 Sep 2008 10:04:03 -0400 Subject: [K12OSN] Re: Centos 5.2 (What gives?) In-Reply-To: <48BBE9FD.5080504@elp.rr.com> References: <20080829160030.C333F619E55@hormel.redhat.com> <48B81496.61E2.006C.0@episd.org> <48BBE9FD.5080504@elp.rr.com> Message-ID: <48BBF653.2050300@cmosnetworks.com> Probably the fact that a whole lot of people, including those who might know about what you're asking, are on vacation for the Labor Day weekend. Ever consider that? --TP Alan Hodson wrote: > OK folks - who's in charge of the "don't acknowledge this posting" > category??? > As far as queries go, mine is just a little out of the ordinary, and > YES, it counts on the collective memory and desire to help others... > What gives? > > Alan Hodson wrote: >> After having my "fav_tips" cleaned out from my Groupwise box (we are >> switching to Zimbra) I could not find the reference I had linked >> where one of our gurus explained how to add the LTSP thin client (or >> was it the k12ltsp?) module to the standard Centos 5.2 install, and >> my googling skills appear to be defective... Anybody out there can >> help me with the proper link? >> Have a safe and restful weekend y'all >> alan >> El Paso ISD, TX >> -=o=- >> >> >> _______________________________________________ >> K12OSN mailing list >> K12OSN at redhat.com >> https://www.redhat.com/mailman/listinfo/k12osn >> For more info see >> >> > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see From robark at gmail.com Mon Sep 1 21:08:50 2008 From: robark at gmail.com (Robert Arkiletian) Date: Mon, 1 Sep 2008 14:08:50 -0700 Subject: [K12OSN] Re: Centos 5.2 (What gives?) In-Reply-To: <48BBE9FD.5080504@elp.rr.com> References: <20080829160030.C333F619E55@hormel.redhat.com> <48B81496.61E2.006C.0@episd.org> <48BBE9FD.5080504@elp.rr.com> Message-ID: On Mon, Sep 1, 2008 at 6:11 AM, Alan Hodson wrote: >> After having my "fav_tips" cleaned out from my Groupwise box (we are >> switching to Zimbra) I could not find the reference I had linked where one >> of our gurus explained how to add the LTSP thin client (or was it the >> k12ltsp?) module to the standard Centos 5.2 install, and my googling skills >> appear to be defective... Anybody out there can help me with the proper >> link? Here are all the ltsp specific packages for k12ltsp 5EL. I haven't tried this!! But maybe if you install these packages it will work. Once again I have no idea if it will work. rpm -qa|grep -i ltsp nat-0.0.3-1.k12ltsp.1.3.1 ltsp_esound_server-0.7-k12ltsp.0.4.2 k12ltsp-scripts-0.0.1-0.4.2 lts-eb-bootroms-5.2.5-k12ltsp.0.4.2 ltsp_ltspfs-4.2.0-0.k12ltsp.5.0.0 ltsp-utils-0.25-4.fc6 vnc-ltsp-config-4.0-3 icewm-l10n-1.2.30-13.k12ltsp.6.0.0 perl-NetAddr-IP-3.24-1.k12ltsp.4.4.2 k12ltsp-release-5.0.0EL-0.2 ltsp_desktop_reset-0.0.3-1.k12ltsp.4.1 ltsp_ppc-4.0.0-0.k12ltsp.2.4.2 dhcp-ltsp-config-0.0.7-k12ltsp.5.0.0 schoolbell-1.2.4-k12ltsp.5.0.0 ltsp_i386-4.2-4.k12ltsp.6.0.0a caching-nameserver-ltsp-7.3-5.k12ltsp.5.0.0a k12ltsp-backgrounds-4.4.0-0 icewm-themes-1.2.30-13.k12ltsp.6.0.0 ltsp_i386-config-4.2.0-4.k12ltsp.5.0.0 verynice-1.1-1.k12ltsp.5.0.0 dansguardian-2.9.8.5-0.k12ltsp.4.2.3EL MToolsFM-1.9-3.k12ltsp.4.3.0 ltsp_esound_i386-0.7-k12ltsp.4.2.2EL root-desktop-urls-0.8-k12ltsp.6.0.0 ltsp_config-0.0.42-k12ltsp.5.0.0EL icewm-1.2.30-13.k12ltsp.6.0.0 spheres-and-crystals-0.7-1.k12ltsp.4.2.2 k12ltsp-core-5.0.0-4 ltsp_ltspswapd-4.2.0-0.k12ltsp.6.0.0 ltsp_i386-boot-2.6.17.8-1.k12ltsp.6.0.0 schooltool-0.11.4-k12ltsp.5.0.0 icewm-menu-gnome2-1.2.30-13.k12ltsp.6.0.0 ltsp_x_vesa-3.0-1.k12ltsp.2.3.0 icemc-1.2-1.k12ltsp.1.3.0 k12ltsp-utils-6.0.0-2 -- Robert Arkiletian Eric Hamber Secondary, Vancouver, Canada Fl_TeacherTool http://www3.telus.net/public/robark/Fl_TeacherTool/ C++ GUI tutorial http://www3.telus.net/public/robark/ From dahopkins429 at gmail.com Mon Sep 1 21:36:43 2008 From: dahopkins429 at gmail.com (David Hopkins) Date: Mon, 1 Sep 2008 17:36:43 -0400 Subject: [K12OSN] OT: Backuppc config issue Message-ID: I installed Backuppc and am trying to simply verify that it will work by running a backup against the backup server itself. I created ssh keys (for both root and the backuppc account) and can ssh into the server without issues or prompts (e.g. ssh ncsfs2) Apache is running as backuppc (per the backuppc website since the only use for apache on this system is to run the Backuppc cgi access). When I request a backup, I get the following (and this is slightly different than the default which includes the --sender --server flags but with those flags the command will not even run at all) Error message in Xfer.log full backup started for directory /home Running: /usr/bin/ssh -q -x -l root ncsfs2 /usr/bin/rsync --numeric-ids --perms --owner --group -D --links --hard-links --times --block-size=2048 --recursive --checksum-seed=32761 --ignore-times . /home/ Xfer PIDs are now 30065 Read EOF: Connection reset by peer Tried again: got 0 bytes Done: 0 files, 0 bytes Got fatal error during xfer (Unable to read 4 bytes) Backup aborted (Unable to read 4 bytes) I have added backuppc ALL=NOPASSWD:/usr/bin/rsync via visudo. I can run the command from a shell as root but the effect is to back up root's home ('.' in the above) to /home/ which is not what is desired at all. I guess I must be very close to getting it working but what is missing now has me baffled. Sincerely, Dave Hopkins From nils at breun.nl Mon Sep 1 21:46:13 2008 From: nils at breun.nl (Nils Breunese) Date: Mon, 1 Sep 2008 23:46:13 +0200 Subject: [K12OSN] OT: Backuppc config issue In-Reply-To: References: Message-ID: <4C15E27A-E196-47ED-8868-298731171FBD@breun.nl> David Hopkins wrote: > I installed Backuppc and am trying to simply verify that it will work > by running a backup against the backup server itself. I created ssh > keys (for both root and the backuppc account) and can ssh into the > server without issues or prompts (e.g. ssh ncsfs2) > > Apache is running as backuppc (per the backuppc website since the only > use for apache on this system is to run the Backuppc cgi access). > > When I request a backup, I get the following (and this is slightly > different than the default which includes the --sender --server flags > but with those flags the command will not even run at all) > > Error message in Xfer.log > > full backup started for directory /home > Running: /usr/bin/ssh -q -x -l root ncsfs2 /usr/bin/rsync > --numeric-ids --perms --owner --group -D --links --hard-links --times > --block-size=2048 --recursive --checksum-seed=32761 --ignore-times . > /home/ > Xfer PIDs are now 30065 > Read EOF: Connection reset by peer > Tried again: got 0 bytes > Done: 0 files, 0 bytes > Got fatal error during xfer (Unable to read 4 bytes) > Backup aborted (Unable to read 4 bytes) > > I have added backuppc ALL=NOPASSWD:/usr/bin/rsync via visudo. > > I can run the command from a shell as root but the effect is to back > up root's home ('.' in the above) to /home/ which is not what is > desired at all. I guess I must be very close to getting it working > but what is missing now has me baffled. Sounds like a question for the backuppc-users mailinglist. I happen to be on there and this is a fairly frequently asked question. First of all, try running that command as the backuppc user instead of root, since that's what BackupPC does. You need to OK the SSH fingerprint the first time you login via SSH and BackupPC can't do that for you. Make sure you login once yourself and OK the fingerprint. Afterwards BackupPC should be able to login automatically. If not you could have another problem, but I suggest taking this issue to the backuppc-users mailinglist (after checking the archives first of course). Nils Breunese. From dahopkins429 at gmail.com Mon Sep 1 22:16:21 2008 From: dahopkins429 at gmail.com (David Hopkins) Date: Mon, 1 Sep 2008 18:16:21 -0400 Subject: [K12OSN] OT: Backuppc config issue In-Reply-To: <4C15E27A-E196-47ED-8868-298731171FBD@breun.nl> References: <4C15E27A-E196-47ED-8868-298731171FBD@breun.nl> Message-ID: On Mon, Sep 1, 2008 at 5:46 PM, Nils Breunese wrote: > David Hopkins wrote: > >> I installed Backuppc and am trying to simply verify that it will work >> by running a backup against the backup server itself. I created ssh >> keys (for both root and the backuppc account) and can ssh into the >> server without issues or prompts (e.g. ssh ncsfs2) >> >> Apache is running as backuppc (per the backuppc website since the only >> use for apache on this system is to run the Backuppc cgi access). >> >> When I request a backup, I get the following (and this is slightly >> different than the default which includes the --sender --server flags >> but with those flags the command will not even run at all) >> >> Error message in Xfer.log >> >> full backup started for directory /home >> Running: /usr/bin/ssh -q -x -l root ncsfs2 /usr/bin/rsync >> --numeric-ids --perms --owner --group -D --links --hard-links --times >> --block-size=2048 --recursive --checksum-seed=32761 --ignore-times . >> /home/ >> Xfer PIDs are now 30065 >> Read EOF: Connection reset by peer >> Tried again: got 0 bytes >> Done: 0 files, 0 bytes >> Got fatal error during xfer (Unable to read 4 bytes) >> Backup aborted (Unable to read 4 bytes) >> >> I have added backuppc ALL=NOPASSWD:/usr/bin/rsync via visudo. >> >> I can run the command from a shell as root but the effect is to back >> up root's home ('.' in the above) to /home/ which is not what is >> desired at all. I guess I must be very close to getting it working >> but what is missing now has me baffled. > > Sounds like a question for the backuppc-users mailinglist. I happen to be on > there and this is a fairly frequently asked question. First of all, try > running that command as the backuppc user instead of root, since that's what > BackupPC does. You need to OK the SSH fingerprint the first time you login > via SSH and BackupPC can't do that for you. Make sure you login once > yourself and OK the fingerprint. Afterwards BackupPC should be able to login > automatically. If not you could have another problem, but I suggest taking > this issue to the backuppc-users mailinglist (after checking the archives > first of course). > Nils, Thanks ... I only posted here because I know some of the backuppc users/mailing list also are active here, especially Les. As for the things to test, I did the ssh test and when I run the command presented as backuppc it errors out with insufficient permission to write to /home which is strange since that is not what I want but it is what the command is saying to do. I have also searched the backuppc mailing list, and googled till I am blue trying to figure it out. Posting here really was a last resort. Guess I'll go join the backuppc mailing list now and post the query there. Sincerely, Dave Hopkins From brcisna at eazylivin.net Tue Sep 2 00:58:31 2008 From: brcisna at eazylivin.net (Barry R Cisna) Date: Mon, 1 Sep 2008 19:58:31 -0500 (CDT) Subject: [K12OSN] OT: Backuppc config issue Message-ID: <53108.192.168.1.1.1220317111.squirrel@www.eazylivin.net> David, Try doing the same as you have posted, from a terminal as *root* manually,see what bombs out this way. Then if your run still bombs, strip all of the options off trailing the rsync. I'm not sure about this version or rsync but I run into a deal were --recursive would never work. I had to use -R instead. Change to /usr/bin/rsync -avz /home/ and see what happens. Let us know how your head scratching progresses. take care, Barry Cisna From dahopkins429 at gmail.com Tue Sep 2 02:06:14 2008 From: dahopkins429 at gmail.com (David Hopkins) Date: Mon, 1 Sep 2008 22:06:14 -0400 Subject: [K12OSN] OT: Backuppc config issue In-Reply-To: <53108.192.168.1.1.1220317111.squirrel@www.eazylivin.net> References: <53108.192.168.1.1.1220317111.squirrel@www.eazylivin.net> Message-ID: Well, after following Nils advice and posting on the backuppc forum, the solution for backing up the localhost was to use /usr/bin/sudo /usr/bin/rsync [options] .... and to turn off the requirement for a tty session in the sudo options. But, as I posted on the backuppc forum, I'm still confused about the syntax for rsync as far as the error log for backuppc is concerned. It shows the rsync command as rsync [whole bunch of options] . /home/ which I thought (and testing from a shell as root seems to confirm) that this would copy '.' to /home/. But ... when run by backuppc it creates a backup The command in the log is: /usr/bin/ssh -q -x -l root ncsfs2 /usr/bin/rsync --numeric-ids --perms --owner --group -D --links --hard-links --times \ --block-size=2048 --recursive --checksum-seed=32761 --ignore-times . /home/ I must be getting the local and remote directories confused because of the use of ssh? I'll test tomorrow on using a remote system and not localhost. Sincerely, Dave Hopkins On Mon, Sep 1, 2008 at 8:58 PM, Barry R Cisna wrote: > David, > > Try doing the same as you have posted, from a terminal as *root* > manually,see what bombs out this way. Then if your run still bombs, strip > all of the options off trailing the rsync. I'm not sure about this version > or rsync but I run into a deal were --recursive would never work. I had to > use -R instead. > Change to /usr/bin/rsync -avz /home/ and see what happens. Let us know how > your head scratching progresses. > > take care, > > Barry Cisna > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > From ckollars9 at yahoo.com Tue Sep 2 03:02:01 2008 From: ckollars9 at yahoo.com (Chuck Kollars) Date: Mon, 1 Sep 2008 20:02:01 -0700 (PDT) Subject: [K12OSN] Time based content filtering Message-ID: <93490.44922.qm@web65616.mail.ac4.yahoo.com> > ... Has anyone figured out how to make DansGuardian do it's blocking > business only at certain times? ... It depends on which version of DansGuardian. All recent versions (specifically the whole 2.9 series) have time/day controls per list built right in. The following shows up in the comments of several of the list files: # Time limiting syntax: # #time: # Example: ##time: 9 0 17 0 01234 # Remove the first # from the line above to enable this list only from # 9am to 5pm, Monday to Friday. If you have an older version (e.g. the 2.8 series), you may need to resort to some fanciness with a 'cron' job swapping in different DansGuardian configuration lists then restarting it. -Chuck Kollars From nils at breun.nl Tue Sep 2 07:18:35 2008 From: nils at breun.nl (Nils Breunese) Date: Tue, 2 Sep 2008 09:18:35 +0200 Subject: [K12OSN] OT: Backuppc config issue In-Reply-To: References: <53108.192.168.1.1.1220317111.squirrel@www.eazylivin.net> Message-ID: <050AFA36-5356-47C3-A557-58EA25472205@breun.nl> David Hopkins wrote: > Well, after following Nils advice and posting on the backuppc forum, > the solution for backing up the localhost was to use > > /usr/bin/sudo /usr/bin/rsync [options] .... > > and to turn off the requirement for a tty session in the sudo options. > But, as I posted on the backuppc forum, I'm still confused about the > syntax for rsync as far as the error log for backuppc is concerned. > It shows the rsync command as > > rsync [whole bunch of options] . /home/ > > which I thought (and testing from a shell as root seems to confirm) > that this would copy '.' to /home/. But ... when run by backuppc it > creates a backup That's because BackupPC works quite differently from what you expect. BackupPC doesn't use the stock rsync binary on the server end for instance, but its own Perl implementation (File::RsyncP) and adds the --server --sender flags to the command to set the client to be backed up in rsync server mode to send the data to the BackupPC server. BackupPC does a whole lot of magic on its own end to make all the pooling and compression possible. It is a mighty powerful system though and we use it to backup all of our machines. If you want to know more about all the technical details, join the backuppc-users mailinglist and check out its archives. Nils Breunese. From julius at turtle.com Tue Sep 2 21:20:44 2008 From: julius at turtle.com (Julius Szelagiewicz) Date: Tue, 2 Sep 2008 17:20:44 -0400 (EDT) Subject: [K12OSN] K12OSN a bit OT - how to deal witha DOS attack Message-ID: Dear Folks, and especially Terrell :-) I've experienced a nasty DOS attack last Friday. I am using a SonicWall Pro as a firewall (because I have some VPNs that my partners are unwilling to change). The firewall stops responding when the table controlling open connections gets full. All the PCs and terminals live behind LTSP server, the internet traffic is proxied to a Squid box on Comcast, the default goes through the Sonicwall. After some testing I've established that the attack happens when a node inside requests it. That is, no attack if i shut down eth0 on the server. Because everything goes through the server's eth1 (Squid too), i am having a very hard time figuring out how to find which devices are compromised. Everything goes through managed HP ProCurve switches, which is not as helpful as one might think. How do I go about finding out where the attack originates inside and where it is coming from on the outside? should I try to dump all the network traffic on eth0 and eth1 to disk? How (tcpdump)? Won't it slow the server to a crawl? Should I put a little Linux box between the server and the network just to capture the traffic? Should I put another HP switch for the same purpose? What to do with captured traffic? Any input will be very welcome. julius From lesmikesell at gmail.com Tue Sep 2 22:36:32 2008 From: lesmikesell at gmail.com (Les Mikesell) Date: Tue, 02 Sep 2008 17:36:32 -0500 Subject: [K12OSN] K12OSN a bit OT - how to deal witha DOS attack In-Reply-To: References: Message-ID: <48BDBFF0.4060504@gmail.com> Julius Szelagiewicz wrote: > Dear Folks, and especially Terrell :-) > I've experienced a nasty DOS attack last Friday. I am using a > SonicWall Pro as a firewall (because I have some VPNs that my partners are > unwilling to change). The firewall stops responding when the table > controlling open connections gets full. All the PCs and terminals live > behind LTSP server, the internet traffic is proxied to a Squid box on > Comcast, the default goes through the Sonicwall. > > After some testing I've established that the attack happens when a > node inside requests it. That is, no attack if i shut down eth0 on the > server. Because everything goes through the server's eth1 (Squid too), i > am having a very hard time figuring out how to find which devices are > compromised. Everything goes through managed HP ProCurve switches, which > is not as helpful as one might think. > > How do I go about finding out where the attack originates inside > and where it is coming from on the outside? should I try to dump all the > network traffic on eth0 and eth1 to disk? How (tcpdump)? Won't it slow the > server to a crawl? Should I put a little Linux box between the server and > the network just to capture the traffic? Should I put another HP switch > for the same purpose? What to do with captured traffic? > > Any input will be very welcome. julius First, don't jump to conclusions about this being an attack - it is fairly easy to create a routing loop with VPN's and NAT that blow things up unintentionally. Try a quick wireshark capture, then do statistics/endpoints, click the tcp tab and look at the list sorted by tx packets (the default, I think). Another thing that can blow up nat tables is a client program that does frequent retries to an unresponsive server - you'll see connection attempts that keep using different source port numbers. Someone might have misconfigured an email client to connect every few seconds or something like that. -- Les Mikesell lesmikesell at gmail.com From julius at turtle.com Wed Sep 3 00:09:34 2008 From: julius at turtle.com (Julius Szelagiewicz) Date: Tue, 2 Sep 2008 20:09:34 -0400 (EDT) Subject: [K12OSN] K12OSN a bit OT - how to deal witha DOS attack In-Reply-To: <48BDBFF0.4060504@gmail.com> References: <48BDBFF0.4060504@gmail.com> Message-ID: <49404.216.216.171.238.1220400574.squirrel@216.216.171.238> > Julius Szelagiewicz wrote: >> Dear Folks, and especially Terrell :-) >> I've experienced a nasty DOS attack last Friday. I am using a >> SonicWall Pro as a firewall (because I have some VPNs that my partners >> are >> unwilling to change). The firewall stops responding when the table >> controlling open connections gets full. All the PCs and terminals live >> behind LTSP server, the internet traffic is proxied to a Squid box on >> Comcast, the default goes through the Sonicwall. >> >> After some testing I've established that the attack happens when a >> node inside requests it. That is, no attack if i shut down eth0 on the >> server. Because everything goes through the server's eth1 (Squid too), i >> am having a very hard time figuring out how to find which devices are >> compromised. Everything goes through managed HP ProCurve switches, which >> is not as helpful as one might think. >> >> How do I go about finding out where the attack originates inside >> and where it is coming from on the outside? should I try to dump all the >> network traffic on eth0 and eth1 to disk? How (tcpdump)? Won't it slow >> the >> server to a crawl? Should I put a little Linux box between the server >> and >> the network just to capture the traffic? Should I put another HP switch >> for the same purpose? What to do with captured traffic? >> >> Any input will be very welcome. julius > > First, don't jump to conclusions about this being an attack - it is > fairly easy to create a routing loop with VPN's and NAT that blow things > up unintentionally. Try a quick wireshark capture, then do > statistics/endpoints, click the tcp tab and look at the list sorted by > tx packets (the default, I think). Another thing that can blow up nat > tables is a client program that does frequent retries to an unresponsive > server - you'll see connection attempts that keep using different source > port numbers. Someone might have misconfigured an email client to > connect every few seconds or something like that. > > -- Les, I grant you your points, but ... 32000 connections in 25 seconds, disconnecting all the windoze crap cures the problem ... I see it as an attack in the sense that I have an undiscovered virus or trojan. Time to learn wireshark. Thank you, julius From wtogami at redhat.com Wed Sep 3 03:57:15 2008 From: wtogami at redhat.com (Warren Togami) Date: Tue, 02 Sep 2008 23:57:15 -0400 Subject: [K12OSN] Flash, Youtube and Thin Clients Message-ID: <48BE0B1B.8080908@redhat.com> I had a talk with someone from Adobe today about our problem with Adobe Flash, Youtube and Thin Clients. A video of 320x240 resolution at 30fps uses ~70Mbit/sec bandwidth. This kind of bandwidth is completely unusable for thin clients. For safety reasons many of us are forced to disable Flash plugin on our LTSP servers in order to avoid killing our networks with only a few clients swamping all available bandwidth. This is a shame, because Flash is plenty useful without Youtube and similar videos. I had an idea, what if there were a boolean option in /etc/adobe/mms.cfg that could turn off playing of .flv movies? Then Flash could remain very useful for LTSP thin clients, and we wouldn't have to disable it entirely for safety reasons. Adobe is hesitant. They say that this is only a policy problem: - We should simply tell users not to use any Youtube-like video. This is simply an unreasonable expectation. Even if all users knew to avoid it, it is simply too easy these days to accidentally load a page with embedded Flash video. - We should use QoS to throttle bandwidth between the terminal server and thin clients to protect the network from this kind of failure. This adds complexity in network configuration, and indiscriminately punishes all applications, while being ineffective to solve the problem. - We should block all possible video sites at our proxy server. This is problematic because there is an arbitrary number of video sites out there growing all the time. Also the below reasons apply. - We should block all .flv URL's at the proxy server. This sounds pretty good and would be the simplest workaround, except this fails for several reasons including: 1) Not every site has or wants proxy filtering. 2) A site may want normal desktops to be able to use .flv video while disabling it only on the LTSP server. 3) It is impossible to selectively filter .flv on a https server. I am suggesting to Adobe in response that these suggestions require us to jump through hoops, adding lots of complexity and are ultimately ineffective in solving the problem. Meanwhile a tiny change to their plugin to implement a boolean variable for an optional config file would enable a complete and simple solution, where Flash remains plenty useful for many other non-video uses. The alternative that we are forced with if they do not agree to this simple request: We must disable the plugin on our terminal servers in order to protect the stability of our networks. To be fair, Adobe didn't know that we existed as a very sizeable deployment base of Linux desktops until this conversation. Also they are very late in the Flash Player 10 development cycle and any change, no matter how seemingly simple, can create risk. I would suggest however, that in this case the benefit is very large, while the risks are small. I am asking for the support of all Linux distributions before I approach Adobe with a stern but polite appeal. May I count on your leadership's co-signing in asking for this option? Do you run a school or business with LTSP and have been plagued by this Flash video bandwidth problem? Please let the list know your organization, location, and # of thin clients affected. I would like to include this as a random incomplete sample of affected users when I submit the formal letter. Warren Togami wtogami at redhat.com From moon at smbis.com Wed Sep 3 04:34:48 2008 From: moon at smbis.com (Moon) Date: Wed, 3 Sep 2008 00:34:48 -0400 Subject: [K12OSN] Flash, Youtube and Thin Clients In-Reply-To: <48BE0B1B.8080908@redhat.com> References: <48BE0B1B.8080908@redhat.com> Message-ID: Warren, here is my input. Organization: Holy Ground Baptist Academy Location: Carrollton, GA 30117 # of thin clients affected: LAB 1 - 8 PCs (Grades K-3) # of thin clients affected: LAB 2 - 24 PCs (Grades 4-8) We had been running Edubuntu up until this August, when I switched everything over to K12LTSP EL5. The reason for the switch was due to Edubuntu's poor performance and instability. Thanks, Charlie -----Original Message----- From: Warren Togami [mailto:wtogami at redhat.com] Sent: Tuesday, September 02, 2008 11:57 PM To: ltsp-developer at lists.sourceforge.net; Support list for opensource software in schools. Subject: [K12OSN] Flash, Youtube and Thin Clients I had a talk with someone from Adobe today about our problem with Adobe Flash, Youtube and Thin Clients. A video of 320x240 resolution at 30fps uses ~70Mbit/sec bandwidth. This kind of bandwidth is completely unusable for thin clients. For safety reasons many of us are forced to disable Flash plugin on our LTSP servers in order to avoid killing our networks with only a few clients swamping all available bandwidth. This is a shame, because Flash is plenty useful without Youtube and similar videos. I had an idea, what if there were a boolean option in /etc/adobe/mms.cfg that could turn off playing of .flv movies? Then Flash could remain very useful for LTSP thin clients, and we wouldn't have to disable it entirely for safety reasons. Adobe is hesitant. They say that this is only a policy problem: - We should simply tell users not to use any Youtube-like video. This is simply an unreasonable expectation. Even if all users knew to avoid it, it is simply too easy these days to accidentally load a page with embedded Flash video. - We should use QoS to throttle bandwidth between the terminal server and thin clients to protect the network from this kind of failure. This adds complexity in network configuration, and indiscriminately punishes all applications, while being ineffective to solve the problem. - We should block all possible video sites at our proxy server. This is problematic because there is an arbitrary number of video sites out there growing all the time. Also the below reasons apply. - We should block all .flv URL's at the proxy server. This sounds pretty good and would be the simplest workaround, except this fails for several reasons including: 1) Not every site has or wants proxy filtering. 2) A site may want normal desktops to be able to use .flv video while disabling it only on the LTSP server. 3) It is impossible to selectively filter .flv on a https server. I am suggesting to Adobe in response that these suggestions require us to jump through hoops, adding lots of complexity and are ultimately ineffective in solving the problem. Meanwhile a tiny change to their plugin to implement a boolean variable for an optional config file would enable a complete and simple solution, where Flash remains plenty useful for many other non-video uses. The alternative that we are forced with if they do not agree to this simple request: We must disable the plugin on our terminal servers in order to protect the stability of our networks. To be fair, Adobe didn't know that we existed as a very sizeable deployment base of Linux desktops until this conversation. Also they are very late in the Flash Player 10 development cycle and any change, no matter how seemingly simple, can create risk. I would suggest however, that in this case the benefit is very large, while the risks are small. I am asking for the support of all Linux distributions before I approach Adobe with a stern but polite appeal. May I count on your leadership's co-signing in asking for this option? Do you run a school or business with LTSP and have been plagued by this Flash video bandwidth problem? Please let the list know your organization, location, and # of thin clients affected. I would like to include this as a random incomplete sample of affected users when I submit the formal letter. Warren Togami wtogami at redhat.com _______________________________________________ K12OSN mailing list K12OSN at redhat.com https://www.redhat.com/mailman/listinfo/k12osn For more info see From wtogami at redhat.com Wed Sep 3 04:47:40 2008 From: wtogami at redhat.com (Warren Togami) Date: Wed, 03 Sep 2008 00:47:40 -0400 Subject: [K12OSN] Flash, Youtube and Thin Clients In-Reply-To: References: <48BE0B1B.8080908@redhat.com> Message-ID: <48BE16EC.10609@redhat.com> Moon wrote: > Warren, here is my input. > > Organization: Holy Ground Baptist Academy > Location: Carrollton, GA 30117 > # of thin clients affected: LAB 1 - 8 PCs (Grades K-3) > # of thin clients affected: LAB 2 - 24 PCs (Grades 4-8) > > We had been running Edubuntu up until this August, when I switched > everything over to K12LTSP EL5. The reason for the switch was due to > Edubuntu's poor performance and instability. Interesting, what specifically performed poorly, and what was unstable? http://wtogami.livejournal.com/27610.html As you may know, we are working on the long-term LTSP5-based successor to the old K12LTSP distribution. Your testing of this would be extremely useful because I want to know if we fall into the same traps as Edubuntu. Unique about this image however is you can run the entire server from a USB stick without installing anything on your hard drive! You can do a temporary test with your 24 PC network for example, rebooting the server to the USB stick, and be up and running serving your clients within minutes for this test. Working on Beta 2... hopefully should be ready next week. Warren Togami wtogami at redhat.com From onatawahtaw at yahoo.ca Wed Sep 3 06:44:48 2008 From: onatawahtaw at yahoo.ca (Onatawahtaw) Date: Tue, 2 Sep 2008 23:44:48 -0700 (PDT) Subject: [K12OSN] OpenAdmin 3.25 (School Administration Program) Released Message-ID: <894346.22756.qm@web30505.mail.mud.yahoo.com> Heya, This is a bit late for those who have started the school year already, but a new version of Open Admin has been released: http://richtech.ca/openadmin/ (actually it was released about 3 weeks ago, but I just noticed it now). There have been a few features and nice fixes added since last year. For those that don't know, Open Admin is a school administration program that allows you to manage student demographics, student attendance, report cards, teacher gradebooks, teacher daybooks, and many more features. You can see all the features by going to the About section on the above website. -Kevin From nils at breun.nl Wed Sep 3 09:03:08 2008 From: nils at breun.nl (Nils Breunese) Date: Wed, 3 Sep 2008 11:03:08 +0200 Subject: [K12OSN] Flash, Youtube and Thin Clients In-Reply-To: <48BE0B1B.8080908@redhat.com> References: <48BE0B1B.8080908@redhat.com> Message-ID: Warren Togami wrote: > A video of 320x240 resolution at 30fps uses ~70Mbit/sec bandwidth. > This > kind of bandwidth is completely unusable for thin clients. For safety > reasons many of us are forced to disable Flash plugin on our LTSP > servers in order to avoid killing our networks with only a few clients > swamping all available bandwidth. Wouldn't LTSP 5 with the browser running as a local app (with a local Flash plugin) help? Nils Breunese. From brian at portsmouth-college.ac.uk Wed Sep 3 09:15:19 2008 From: brian at portsmouth-college.ac.uk (Brian Chivers) Date: Wed, 03 Sep 2008 10:15:19 +0100 Subject: [K12OSN] Removing kpp and kopete Message-ID: <48BE55A7.1040502@portsmouth-college.ac.uk> This is a simple question I think but for the life of me I can't working it out, it's been a long summer :-) How do I remove kppp & kopete & also it's icons from the menu's. I'm running on CentOS 5.2 Thanks Brian Portsmouth College ------------------------------------------------------------------------------------------------ The views expressed here are my own and not necessarily the views of Portsmouth College From rob.owens at biochemfluidics.com Wed Sep 3 11:43:27 2008 From: rob.owens at biochemfluidics.com (Rob Owens) Date: Wed, 03 Sep 2008 07:43:27 -0400 Subject: [K12OSN] Flash, Youtube and Thin Clients In-Reply-To: <48BE0B1B.8080908@redhat.com> References: <48BE0B1B.8080908@redhat.com> Message-ID: <48BE785F.7020602@biochemfluidics.com> May I suggest that you approach the Gnash folks with the same request? I realize that Gnash doesn't work for everything, but perhaps this could be the first step in Gnash actually becoming better than Adobe's Flash (if Gnash implemented the boolean option and Adobe didn't). -Rob Warren Togami wrote: > I had a talk with someone from Adobe today about our problem with Adobe > Flash, Youtube and Thin Clients. > > A video of 320x240 resolution at 30fps uses ~70Mbit/sec bandwidth. This > kind of bandwidth is completely unusable for thin clients. For safety > reasons many of us are forced to disable Flash plugin on our LTSP > servers in order to avoid killing our networks with only a few clients > swamping all available bandwidth. > > This is a shame, because Flash is plenty useful without Youtube and > similar videos. > > I had an idea, what if there were a boolean option in /etc/adobe/mms.cfg > that could turn off playing of .flv movies? Then Flash could remain > very useful for LTSP thin clients, and we wouldn't have to disable it > entirely for safety reasons. > > Adobe is hesitant. They say that this is only a policy problem: > > - We should simply tell users not to use any Youtube-like video. This > is simply an unreasonable expectation. Even if all users knew to avoid > it, it is simply too easy these days to accidentally load a page with > embedded Flash video. > - We should use QoS to throttle bandwidth between the terminal server > and thin clients to protect the network from this kind of failure. This > adds complexity in network configuration, and indiscriminately punishes > all applications, while being ineffective to solve the problem. > - We should block all possible video sites at our proxy server. This is > problematic because there is an arbitrary number of video sites out > there growing all the time. Also the below reasons apply. > - We should block all .flv URL's at the proxy server. This sounds > pretty good and would be the simplest workaround, except this fails for > several reasons including: > 1) Not every site has or wants proxy filtering. > 2) A site may want normal desktops to be able to use .flv video while > disabling it only on the LTSP server. > 3) It is impossible to selectively filter .flv on a https server. > > I am suggesting to Adobe in response that these suggestions require us > to jump through hoops, adding lots of complexity and are ultimately > ineffective in solving the problem. Meanwhile a tiny change to their > plugin to implement a boolean variable for an optional config file would > enable a complete and simple solution, where Flash remains plenty useful > for many other non-video uses. > > The alternative that we are forced with if they do not agree to this > simple request: We must disable the plugin on our terminal servers in > order to protect the stability of our networks. > > To be fair, Adobe didn't know that we existed as a very sizeable > deployment base of Linux desktops until this conversation. Also they > are very late in the Flash Player 10 development cycle and any change, > no matter how seemingly simple, can create risk. I would suggest > however, that in this case the benefit is very large, while the risks > are small. > > I am asking for the support of all Linux distributions before I approach > Adobe with a stern but polite appeal. May I count on your leadership's > co-signing in asking for this option? > > Do you run a school or business with LTSP and have been plagued by this > Flash video bandwidth problem? Please let the list know your > organization, location, and # of thin clients affected. I would like to > include this as a random incomplete sample of affected users when I > submit the formal letter. > > Warren Togami > wtogami at redhat.com > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** From moon at smbis.com Wed Sep 3 13:35:00 2008 From: moon at smbis.com (Moon) Date: Wed, 3 Sep 2008 09:35:00 -0400 Subject: [K12OSN] Removing kpp and kopete In-Reply-To: <48BE55A7.1040502@portsmouth-college.ac.uk> References: <48BE55A7.1040502@portsmouth-college.ac.uk> Message-ID: <821953CA663F4F30BA44047FA4D47762@acerpc> The GUI method: You can use Yum Extender by selecting from the top menu bar: Applications -> System Tools -> Yum Extender (requires the root password). Then in the Yum Extender menu: select Packages-Installed next to the top right center of the window, and input the package name you want to uninstall in the search window just below, and then click on the magnifying glass icon to the right. If found, the installed package appears in the center window with a check mark next to it. Simply uncheck and click on the Process Queue button on the bottom right and follow the prompts to remove the package. The Command Line method: rpm -e kppp kopete -----Original Message----- From: Brian Chivers [mailto:brian at portsmouth-college.ac.uk] Sent: Wednesday, September 03, 2008 05:15 AM To: Support list for open source software in schools. Subject: [K12OSN] Removing kpp and kopete This is a simple question I think but for the life of me I can't working it out, it's been a long summer :-) How do I remove kppp & kopete & also it's icons from the menu's. I'm running on CentOS 5.2 Thanks Brian Portsmouth College ---------------------------------------------------------------------------- -------------------- The views expressed here are my own and not necessarily the views of Portsmouth College _______________________________________________ K12OSN mailing list K12OSN at redhat.com https://www.redhat.com/mailman/listinfo/k12osn For more info see From micha at arava.co.il Wed Sep 3 13:35:02 2008 From: micha at arava.co.il (Micha Silver) Date: Wed, 03 Sep 2008 16:35:02 +0300 Subject: [K12OSN] K12OSN a bit OT - how to deal witha DOS attack In-Reply-To: <49404.216.216.171.238.1220400574.squirrel@216.216.171.238> References: <48BDBFF0.4060504@gmail.com> <49404.216.216.171.238.1220400574.squirrel@216.216.171.238> Message-ID: <48BE9286.4090900@arava.co.il> Julius Szelagiewicz wrote: >> Julius Szelagiewicz wrote: >> >>> Dear Folks, and especially Terrell :-) >>> I've experienced a nasty DOS attack last Friday. I am using a >>> SonicWall Pro as a firewall (because I have some VPNs that my partners >>> are >>> unwilling to change). The firewall stops responding when the table >>> controlling open connections gets full. All the PCs and terminals live >>> behind LTSP server, the internet traffic is proxied to a Squid box on >>> Comcast, the default goes through the Sonicwall. >>> >>> When you say, "the table controlling open connections" does that refer to /proc/net/ip_connections? You might try increasing the kernel runtime param ip_conntrack_max. i.e. #echo 64000 > /proc/sys/net/ipv4/ip_conntrack_max. The default value is chosen based on the amount of RAM in the system, and for a busy firewall with filesharing apps behind it opening hundreds of connections each, it can get overrun. Cheers, Micha >>> >> First, don't jump to conclusions about this being an attack - it is >> fairly easy to create a routing loop with VPN's and NAT that blow things >> up unintentionally. Try a quick wireshark capture, then do >> statistics/endpoints, click the tcp tab and look at the list sorted by >> tx packets (the default, I think). Another thing that can blow up nat >> tables is a client program that does frequent retries to an unresponsive >> server - you'll see connection attempts that keep using different source >> port numbers. Someone might have misconfigured an email client to >> connect every few seconds or something like that. >> >> -- >> > Les, I grant you your points, but ... > 32000 connections in 25 seconds, disconnecting all the windoze crap cures > the problem ... > I see it as an attack in the sense that I have an undiscovered virus or > trojan. > Time to learn wireshark. > Thank you, julius > > From nils at breun.nl Wed Sep 3 13:51:38 2008 From: nils at breun.nl (Nils Breunese) Date: Wed, 3 Sep 2008 15:51:38 +0200 Subject: [K12OSN] Removing kpp and kopete In-Reply-To: <821953CA663F4F30BA44047FA4D47762@acerpc> References: <48BE55A7.1040502@portsmouth-college.ac.uk> <821953CA663F4F30BA44047FA4D47762@acerpc> Message-ID: <3A1CA078-9A96-4122-82B4-82189BE5ABCF@breun.nl> Moon wrote: > The GUI method: > > You can use Yum Extender by selecting from the top menu bar: > Applications -> > System Tools -> Yum Extender (requires the root password). > > Then in the Yum Extender menu: select Packages-Installed next to the > top > right center of the window, and input the package name you want to > uninstall > in the search window just below, and then click on the magnifying > glass icon > to the right. > > If found, the installed package appears in the center window with a > check > mark next to it. Simply uncheck and click on the Process Queue > button on the > bottom right and follow the prompts to remove the package. > > The Command Line method: > > rpm -e kppp kopete Or 'yum remove kppp kopete' if you want dependencies taken care of. But I believe the problem is that kppp and kopete are not individual packages. They are probably part of some larger KDE package, but we don't run KDE. You could run rpm -qf on the kopete and kppp binaries to find out to what package they belong. Nils Breunese. From lesmikesell at gmail.com Wed Sep 3 15:13:13 2008 From: lesmikesell at gmail.com (Les Mikesell) Date: Wed, 03 Sep 2008 10:13:13 -0500 Subject: [K12OSN] K12OSN a bit OT - how to deal witha DOS attack In-Reply-To: <49404.216.216.171.238.1220400574.squirrel@216.216.171.238> References: <48BDBFF0.4060504@gmail.com> <49404.216.216.171.238.1220400574.squirrel@216.216.171.238> Message-ID: <48BEA989.4000708@gmail.com> Julius Szelagiewicz wrote: > >> First, don't jump to conclusions about this being an attack - it is >> fairly easy to create a routing loop with VPN's and NAT that blow things >> up unintentionally. Try a quick wireshark capture, then do >> statistics/endpoints, click the tcp tab and look at the list sorted by >> tx packets (the default, I think). Another thing that can blow up nat >> tables is a client program that does frequent retries to an unresponsive >> server - you'll see connection attempts that keep using different source >> port numbers. Someone might have misconfigured an email client to >> connect every few seconds or something like that. >> >> -- > Les, I grant you your points, but ... > 32000 connections in 25 seconds, disconnecting all the windoze crap cures > the problem ... > I see it as an attack in the sense that I have an undiscovered virus or > trojan. > Time to learn wireshark. If it is a virus, the source IPs may be faked, especially on UDP packets. Try looking at the MAC addresses - but doing a short capture, then Statistics is still the place to start. It's probably easier to work with the numeric MAC address so go to View/Name Resolution/ and uncheck the MAC layer (otherwise it tries to show the NIC vendor). Then Statistics/endpoints/ethernet should show the busy talkers. Ntop is also very good for quickly sorting out the sources of different kinds of network activity but it can be a little harder to keep running than wireshark. Also, this is the time that it would be really handy to have set up something like ocsinventory (http://www.ocsinventory-ng.org/) so you'd already know the NIC MAC addresses. Otherwise you may have to hunt them down following the mac table entries on your switches. -- Les Mikesell lesmikesell at gmail.com From brian at portsmouth-college.ac.uk Wed Sep 3 15:40:06 2008 From: brian at portsmouth-college.ac.uk (Brian Chivers) Date: Wed, 03 Sep 2008 16:40:06 +0100 Subject: [K12OSN] Removing kpp and kopete In-Reply-To: <3A1CA078-9A96-4122-82B4-82189BE5ABCF@breun.nl> References: <48BE55A7.1040502@portsmouth-college.ac.uk> <821953CA663F4F30BA44047FA4D47762@acerpc> <3A1CA078-9A96-4122-82B4-82189BE5ABCF@breun.nl> Message-ID: <48BEAFD6.4040909@portsmouth-college.ac.uk> Nils Breunese wrote: > Moon wrote: > >> The GUI method: >> >> You can use Yum Extender by selecting from the top menu bar: >> Applications -> >> System Tools -> Yum Extender (requires the root password). >> >> Then in the Yum Extender menu: select Packages-Installed next to the top >> right center of the window, and input the package name you want to >> uninstall >> in the search window just below, and then click on the magnifying >> glass icon >> to the right. >> >> If found, the installed package appears in the center window with a check >> mark next to it. Simply uncheck and click on the Process Queue button >> on the >> bottom right and follow the prompts to remove the package. >> >> The Command Line method: >> >> rpm -e kppp kopete > > Or 'yum remove kppp kopete' if you want dependencies taken care of. But > I believe the problem is that kppp and kopete are not individual > packages. They are probably part of some larger KDE package, but we > don't run KDE. You could run rpm -qf on the kopete and kppp binaries to > find out to what package they belong. > > Nils Breunese. > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > > I did a rpm -qf /usr/bin/kopete and this was the result kdenetwork-3.5.4-4.fc6 So I'm guessing it's part of the kdenetwork package (man I'm smart sometime *grin*) Looking on this page http://www.linuxfromscratch.org/blfs/view/svn/kde/kdenetwork.html it seems I can remove it without break too much :-) Any thing I should check first ?? Brian ------------------------------------------------------------------------------------------------ The views expressed here are my own and not necessarily the views of Portsmouth College From nils at breun.nl Wed Sep 3 16:40:51 2008 From: nils at breun.nl (Nils Breunese) Date: Wed, 3 Sep 2008 18:40:51 +0200 Subject: [K12OSN] Removing kpp and kopete In-Reply-To: <48BEAFD6.4040909@portsmouth-college.ac.uk> References: <48BE55A7.1040502@portsmouth-college.ac.uk> <821953CA663F4F30BA44047FA4D47762@acerpc> <3A1CA078-9A96-4122-82B4-82189BE5ABCF@breun.nl> <48BEAFD6.4040909@portsmouth-college.ac.uk> Message-ID: Brian Chivers wrote: > I did a rpm -qf /usr/bin/kopete and this was the result > > kdenetwork-3.5.4-4.fc6 > > So I'm guessing it's part of the kdenetwork package (man I'm smart > sometime *grin*) > > Looking on this page http://www.linuxfromscratch.org/blfs/view/svn/kde/kdenetwork.html > it seems I can remove it without break too much :-) > > Any thing I should check first ?? Seems like kppp is also part of the kdenetwork package. See the output of 'rpm -ql kdenetwork | grep /usr/bin' for a list of other binaries that you'll get rid of when uninstall the kdenetwork package. After that you could run 'yum remove kdenetwork'. If kdenetwork is a dependency for other packages yum will show you a list of packages that will also be removed when removing kdenetwork. If that all looks ok to you, you can proceed to remove it. If you find that you don't want to remove kdenetwork because of dependencies or other useful programs in the kdenetwork package, you may need to look into modifying the launcher menus to remove the entries or even blocking access to the kopete and kppp binaries directly by modifying permissions if that is what you want. Nils Breunese. From scott at steibel.org Wed Sep 3 21:06:44 2008 From: scott at steibel.org (Scott Steibel) Date: Wed, 03 Sep 2008 17:06:44 -0400 Subject: [K12OSN] transparent proxy setup Message-ID: <48BEFC64.10000@steibel.org> I've got k12ltsp running using centos (5.0.0EL -64) All works fine, except, when I try to run dansquardian with squid as a transparent proxy. I used IPtables to redirect request to go thru squid to dansguardian then out to the net. I followed these instructions. http://www.linux.com/articles/113733 The problem seems to be that iptables is bocking either the dhcp or the tftp during the workstation boot up. When I stop the iptable service on the server, the workstations boot right up. But, of course this leave me with no transparent proxying, no danguardian. I googled around a bit, These are my questions at the moment. Seems, like I need to set up a separate box to function as the transparent proxy server with squid? Is this true? If so, how would I point the ltsp server and the workstatons to this separate box. Any guidance is greatly appreciated. Scott From gerrylist at drouillard.ca Wed Sep 3 22:19:28 2008 From: gerrylist at drouillard.ca (Gerald Drouillard) Date: Wed, 03 Sep 2008 18:19:28 -0400 Subject: [K12OSN] transparent proxy setup In-Reply-To: <48BEFC64.10000@steibel.org> References: <48BEFC64.10000@steibel.org> Message-ID: <48BF0D70.9000200@drouillard.ca> Scott Steibel wrote: > I've got k12ltsp running using centos (5.0.0EL -64) > > All works fine, except, when I try to run dansquardian with squid as a > transparent proxy. I used IPtables to redirect request to go thru > squid to dansguardian then out to the net. > > I followed these instructions. http://www.linux.com/articles/113733 > > The problem seems to be that iptables is bocking either the dhcp or the > tftp during the workstation boot up. > When I stop the iptable service on the server, the workstations boot > right up. But, of course this leave me with no transparent proxying, > no danguardian. > > > I googled around a bit, These are my questions at the moment. > > Seems, like I need to set up a separate box to function as the > transparent proxy server with squid? Is this true? Another approach is to use the /usr/lib/firefox-3.0/firefox.cfg file and lockPref("network.proxy.http","127.0.0.1"); lockPref("network.proxy.http_port",3120); There are some other settings, so you may want to google it. -- Regards -------------------------------------- Gerald Drouillard Technology Architect Drouillard & Associates, Inc. http://www.Drouillard.biz From cramptons at duvalschools.org Wed Sep 3 23:28:23 2008 From: cramptons at duvalschools.org (Crampton, Stephen C.) Date: Wed, 3 Sep 2008 19:28:23 -0400 Subject: [K12OSN] Switching Network Cards References: <20080903160040.E69358E06DA@hormel.redhat.com> Message-ID: I installed Edubuntu with LTSP on a box with two network cards. Edubuntu wants to use eth0 for communicating with clients and eth1 for communicating with the world. eth1 is a gigabit card, so I would like to switch things around. Could someone tell me which configuration files need to be modified so that eth0 will communicate with the world and eth1 will communicate with the LTSP clients? The information contained in this message may be privileged and confidential and protected from disclosure. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by replying to the message and deleting it from your computer. Under Florida law, e-mail addresses are public records. If you do not want your e-mail address released in response to a public-records request, do not send electronic mail to this entity. Instead, contact this office by phone or in writing. -------------- next part -------------- An HTML attachment was scrubbed... URL: From willems.leo at googlemail.com Thu Sep 4 01:21:12 2008 From: willems.leo at googlemail.com (Leo Willems) Date: Thu, 4 Sep 2008 09:21:12 +0800 Subject: [K12OSN] OpenAdmin 3.25 (School Administration Program) Released In-Reply-To: <894346.22756.qm@web30505.mail.mud.yahoo.com> References: <894346.22756.qm@web30505.mail.mud.yahoo.com> Message-ID: <3fabbdc20809031821q9cefcadm9e24eaaf58281de4@mail.gmail.com> Hello, thanks for that link. Does anybody like to share experiences with: OpenAdmin http://richtech.ca/openadmin/ Moodle http://http://moodle.org/ SchoolTool http://www.schooltool.org/ FOCUS/SIS http://www.focussis.org/ I looking for a solution (first for a personal study object) an open source (free) as replacement for Rediker AdminPlus/Edline/GradeQuick. I would be great to find an integrated web based solution with the same 'list' of functions: courses scheduling, attendance, gradebooks with grades and skill assessments and lessonplans, teachers web pages and file locker, course web pages, students web pages and file lockers, report cards print outs and online posting with grades, skill assessment and attendance ...) Thanks Leo On Wed, Sep 3, 2008 at 2:44 PM, Onatawahtaw wrote: > Heya, > > This is a bit late for those who have started the school year already, but a new version of Open Admin has been released: http://richtech.ca/openadmin/ (actually it was released about 3 weeks ago, but I just noticed it now). There have been a few features and nice fixes added since last year. > > For those that don't know, Open Admin is a school administration program that allows you to manage student demographics, student attendance, report cards, teacher gradebooks, teacher daybooks, and many more features. You can see all the features by going to the About section on the above website. > > -Kevin From tom.hoffman at gmail.com Thu Sep 4 01:41:47 2008 From: tom.hoffman at gmail.com (Tom Hoffman) Date: Wed, 3 Sep 2008 18:41:47 -0700 Subject: [K12OSN] OpenAdmin 3.25 (School Administration Program) Released In-Reply-To: <3fabbdc20809031821q9cefcadm9e24eaaf58281de4@mail.gmail.com> References: <894346.22756.qm@web30505.mail.mud.yahoo.com> <3fabbdc20809031821q9cefcadm9e24eaaf58281de4@mail.gmail.com> Message-ID: <92de6c880809031841ic30b2baj50666b092445615d@mail.gmail.com> On Wed, Sep 3, 2008 at 6:21 PM, Leo Willems wrote: > Hello, > > thanks for that link. > > Does anybody like to share experiences with: > OpenAdmin http://richtech.ca/openadmin/ > Moodle http://http://moodle.org/ > SchoolTool http://www.schooltool.org/ > FOCUS/SIS http://www.focussis.org/ > > I looking for a solution (first for a personal study object) an open > source (free) as replacement for Rediker AdminPlus/Edline/GradeQuick. > > I would be great to find an integrated web based solution with the > same 'list' of functions: courses scheduling, attendance, gradebooks > with grades and skill assessments and lessonplans, teachers web pages > and file locker, course web pages, students web pages and file > lockers, report cards print outs and online posting with grades, skill > assessment and attendance ...) SchoolTool is on schedule for a beta release in October and 1.0 in April which will include demographics, gradebook, attendance, and calendaring, with additional modules for competency and intervention tracking. Tom Hoffman SchoolTool Project Manager From brian at portsmouth-college.ac.uk Thu Sep 4 11:04:12 2008 From: brian at portsmouth-college.ac.uk (Brian Chivers) Date: Thu, 04 Sep 2008 12:04:12 +0100 Subject: [K12OSN] Setting proxy for Firefox 3 all users *ARRRGGGHHH* This old chestnut again :-) Message-ID: <48BFC0AC.9090707@portsmouth-college.ac.uk> I've been trying to set the proxy for all users as a default for all users & I just can't get it to work. I looked at http://www.mozilla.org/unix/customizing.html#prefs But where do I have to put this prefs.js, is it in ~/.mozilla ?? If so can I stick this in the /etc/skel directory so it defaults over. I've editted /usr/lib/firefox-3.0.1/defaults/profile/prefs.js /usr/lib64/firefox-3.0.1/defaults/profile/prefs.js /usr/lib64/firefox-3.0.1/defaults/preferences/firefox.js /usr/lib/firefox-3.0.1/defaults/preferences/firefox.js HELP :-) Brian ------------------------------------------------------------------------------------------------ The views expressed here are my own and not necessarily the views of Portsmouth College From brian at portsmouth-college.ac.uk Thu Sep 4 11:28:57 2008 From: brian at portsmouth-college.ac.uk (Brian Chivers) Date: Thu, 04 Sep 2008 12:28:57 +0100 Subject: [K12OSN] Flash plugin with Firefox 64 bit Message-ID: <48BFC679.3000200@portsmouth-college.ac.uk> Sorry another question :-) Hasd anyone got the flash plugin working with Firefox 64 bit ?? If not how can I force our box to run the 32 bit version. Thanks Brian ------------------------------------------------------------------------------------------------ The views expressed here are my own and not necessarily the views of Portsmouth College From nils at breun.nl Thu Sep 4 11:38:57 2008 From: nils at breun.nl (Nils Breunese) Date: Thu, 4 Sep 2008 13:38:57 +0200 Subject: [K12OSN] Flash plugin with Firefox 64 bit In-Reply-To: <48BFC679.3000200@portsmouth-college.ac.uk> References: <48BFC679.3000200@portsmouth-college.ac.uk> Message-ID: <548C79C6-613B-4335-8CD4-84C372A49296@breun.nl> Brian Chivers wrote: > Hasd anyone got the flash plugin working with Firefox 64 bit ?? It's supposed to work if you use nspluginwrapper, but Firefox kept crashing on our setup, so we went back to 32-bit Firefox with 32-bit Flash (there is no 64-bit Flash plugin) and 32-bit Java plugin (also not available in 64-bit). > If not how can I force our box to run the 32 bit version. The easiest way is to just uninstall the 64-bit version of Firefox. Nils Breunese. From lewis at pcc.com Thu Sep 4 11:39:08 2008 From: lewis at pcc.com (Lewis Holcroft) Date: Thu, 4 Sep 2008 07:39:08 -0400 Subject: [K12OSN] Flash plugin with Firefox 64 bit In-Reply-To: <48BFC679.3000200@portsmouth-college.ac.uk> References: <48BFC679.3000200@portsmouth-college.ac.uk> Message-ID: <72869587-7D91-4B30-96B2-6CCD9323DA8C@pcc.com> Brian, Yes I got it working with 64 bit. I found instructions in the k12ltsp wiki I think. Getting the 32 bit running was simple. Yum remove firefox.86x64 Lewis On Sep 4, 2008, at 7:28 AM, Brian Chivers wrote: > Sorry another question :-) > > Hasd anyone got the flash plugin working with Firefox 64 bit ?? > > If not how can I force our box to run the 32 bit version. > > Thanks > Brian > > --- > --- > --- > --- > --- > --- > --- > --- > --- > --------------------------------------------------------------------- > The views expressed here are my own and not necessarily > the views of Portsmouth College > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see From nils at breun.nl Thu Sep 4 12:13:11 2008 From: nils at breun.nl (Nils Breunese) Date: Thu, 4 Sep 2008 14:13:11 +0200 Subject: [K12OSN] Flash plugin with Firefox 64 bit In-Reply-To: <72869587-7D91-4B30-96B2-6CCD9323DA8C@pcc.com> References: <48BFC679.3000200@portsmouth-college.ac.uk> <72869587-7D91-4B30-96B2-6CCD9323DA8C@pcc.com> Message-ID: <18FB7F86-4157-4236-B1D2-CC5DCFCD2E1D@breun.nl> Lewis Holcroft wrote: > Yes I got it working with 64 bit. I found instructions in the > k12ltsp wiki I think. nspluginwrapper is included since CentOS 5.2, so you can just yum install nspluginwrapper and run it to find any wrappable plugins. But it did not work reliably for us. > Getting the 32 bit running was simple. > Yum remove firefox.86x64 That's: yum remove firefox.x86_64 This also assumes you already have firefox.i386 installed. :o) Nils Breunese. From jones_yeates at hotmail.com Thu Sep 4 12:26:38 2008 From: jones_yeates at hotmail.com (jones yeates) Date: Thu, 4 Sep 2008 12:26:38 +0000 Subject: [K12OSN] Installing Anjuta on CentOS5 Message-ID: Hi, I changed my OS from Fedora to CentOS5 recently. I can't seem to install Anjuta. Below are the things that I've tried. 1. yum install anjuta -- It is not in the repositories 2. yum update -- try to update everything as much as possible 3. I found a 2.4.2 version of the source and tried to compile it. I got to ./configure and it would crash. Claiming that the VTE package could not be found. I got a VTE source file and was able to compile it without any problems. However it was supposed to be version 0.16.2 and when I did a yum info vte I get version 0.14.0. Anyhow, yum says vte has been installled. 4. I found an .rpm version of Anjuta for distributions other than Fedora 3 and it stops at the public key thing. I don't have the public key so it stops. Any suggestions? Or insights on what I'm doing wrong? Thanks. _________________________________________________________________ -------------- next part -------------- An HTML attachment was scrubbed... URL: From rob.owens at biochemfluidics.com Thu Sep 4 12:33:10 2008 From: rob.owens at biochemfluidics.com (Rob Owens) Date: Thu, 04 Sep 2008 08:33:10 -0400 Subject: [K12OSN] Switching Network Cards In-Reply-To: References: <20080903160040.E69358E06DA@hormel.redhat.com> Message-ID: <48BFD586.1050901@biochemfluidics.com> On my Ubuntu Hardy system, these are defined in /etc/udev/rules.d/70-persistent-net.rules -Rob Crampton, Stephen C. wrote: > I installed Edubuntu with LTSP on a box with two network cards. > Edubuntu wants to use eth0 for communicating with clients and eth1 for > communicating with the world. > > eth1 is a gigabit card, so I would like to switch things around. Could > someone tell me which configuration files need to be modified so that > eth0 will communicate with the world and eth1 will communicate with the > LTSP clients? > > > The information contained in this message may be privileged and > confidential and protected from disclosure. If the reader of this > message is not the intended recipient, or an employee or agent > responsible for delivering this message to the intended recipient, you > are hereby notified that any dissemination, distribution or copying of > this communication is strictly prohibited. If you have received this > communication in error, please notify us immediately by replying to the > message and deleting it from your computer. Under Florida law, e-mail > addresses are public records. If you do not want your e-mail address > released in response to a public-records request, do not send electronic > mail to this entity. Instead, contact this office by phone or in writing. > > > ------------------------------------------------------------------------ > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** From rob.owens at biochemfluidics.com Thu Sep 4 12:34:28 2008 From: rob.owens at biochemfluidics.com (Rob Owens) Date: Thu, 04 Sep 2008 08:34:28 -0400 Subject: [K12OSN] Switching Network Cards In-Reply-To: <48BFD586.1050901@biochemfluidics.com> References: <20080903160040.E69358E06DA@hormel.redhat.com> <48BFD586.1050901@biochemfluidics.com> Message-ID: <48BFD5D4.7030701@biochemfluidics.com> Rob Owens wrote: > On my Ubuntu Hardy system, these are defined in > /etc/udev/rules.d/70-persistent-net.rules > You'll also want to check out /etc/network/interfaces > -Rob > > Crampton, Stephen C. wrote: >> I installed Edubuntu with LTSP on a box with two network cards. >> Edubuntu wants to use eth0 for communicating with clients and eth1 for >> communicating with the world. >> >> eth1 is a gigabit card, so I would like to switch things around. Could >> someone tell me which configuration files need to be modified so that >> eth0 will communicate with the world and eth1 will communicate with the >> LTSP clients? >> >> >> The information contained in this message may be privileged and >> confidential and protected from disclosure. If the reader of this >> message is not the intended recipient, or an employee or agent >> responsible for delivering this message to the intended recipient, you >> are hereby notified that any dissemination, distribution or copying of >> this communication is strictly prohibited. If you have received this >> communication in error, please notify us immediately by replying to the >> message and deleting it from your computer. Under Florida law, e-mail >> addresses are public records. If you do not want your e-mail address >> released in response to a public-records request, do not send electronic >> mail to this entity. Instead, contact this office by phone or in writing. >> >> >> ------------------------------------------------------------------------ >> >> _______________________________________________ >> K12OSN mailing list >> K12OSN at redhat.com >> https://www.redhat.com/mailman/listinfo/k12osn >> For more info see > ******************************************************** > > The information transmitted is intended only for the person or entity to > which it is addressed and may contain confidential and/or privileged > material. If you are not the addressee, any disclosure, reproduction, > copying, distribution, or other dissemination or use of this transmission in > error please notify the sender immediately and then delete this e-mail. > E-mail transmission cannot be guaranteed to be secure or error free as > information could be intercepted, corrupted lost, destroyed, arrive late or > incomplete, or contain viruses. > The sender therefore does not accept liability for any errors or omissions > in the contents of this message which arise as a result of e-mail > transmission. If verification is required please request a hard copy > version. > > ******************************************************** > > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** From dahopkins429 at gmail.com Thu Sep 4 12:46:00 2008 From: dahopkins429 at gmail.com (David Hopkins) Date: Thu, 4 Sep 2008 08:46:00 -0400 Subject: [K12OSN] Setting proxy for Firefox 3 all users *ARRRGGGHHH* This old chestnut again :-) In-Reply-To: <48BFC0AC.9090707@portsmouth-college.ac.uk> References: <48BFC0AC.9090707@portsmouth-college.ac.uk> Message-ID: > /usr/lib/firefox-3.0.1/defaults/profile/prefs.js > /usr/lib64/firefox-3.0.1/defaults/profile/prefs.js > /usr/lib64/firefox-3.0.1/defaults/preferences/firefox.js > /usr/lib/firefox-3.0.1/defaults/preferences/firefox.js > On all my ltsp servers, I edited the /usr/lib/firefox-3.0.1/defaults/preferences/firefox.js file and added all the proxy related changes (about 22 lines I think). Does the local prefs.js override the default? If so, could you use a login script to automatically add those 22 lines to each user's prefs.js on login? (or just delete the user's prefs.js and force it to be recreated from the defaults?) Sincerely, Dave Hopkins From tux_rocker at reinier.de Thu Sep 4 12:45:56 2008 From: tux_rocker at reinier.de (Reinier Lamers) Date: Thu, 4 Sep 2008 14:45:56 +0200 Subject: [K12OSN] Flash plugin with Firefox 64 bit In-Reply-To: <18FB7F86-4157-4236-B1D2-CC5DCFCD2E1D@breun.nl> References: <48BFC679.3000200@portsmouth-college.ac.uk> <72869587-7D91-4B30-96B2-6CCD9323DA8C@pcc.com> <18FB7F86-4157-4236-B1D2-CC5DCFCD2E1D@breun.nl> Message-ID: <57B2927D-F9BF-476E-B8E2-67B02796F524@reinier.de> -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Op 4-sep-2008, om 14:13 heeft Nils Breunese het volgende geschreven: > Lewis Holcroft wrote: > >> Yes I got it working with 64 bit. I found instructions in the >> k12ltsp wiki I think. > > nspluginwrapper is included since CentOS 5.2, so you can just yum > install nspluginwrapper and run it to find any wrappable plugins. > But it did not work reliably for us. It didn't run reliably indeed: it was quite a heisenbug. Firefox would even crash when users were not actually viewing Flash. Only looking at the segfault error messages from the kernel revealed that it was nspluginwrapper that was causing the crash. I'd strongly advise anyone to use 32-bit Firefox if (s)he wants to view Flash. Reinier -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (Darwin) iEYEARECAAYFAki/2IUACgkQR3bgBiWODBeQnACfbJS8bJsdvn2f/8XSHdkQ34Ct gucAnR1+18/c8s3EPSLENzakJxksqBzy =XV2u -----END PGP SIGNATURE----- From nils at breun.nl Thu Sep 4 12:50:58 2008 From: nils at breun.nl (Nils Breunese) Date: Thu, 4 Sep 2008 14:50:58 +0200 Subject: [K12OSN] Installing Anjuta on CentOS5 In-Reply-To: References: Message-ID: <9F9993F2-66C8-4509-B861-0E8E940DF559@breun.nl> jones yeates wrote: > I changed my OS from Fedora to CentOS5 recently. I can't seem to > install Anjuta. Below are the things that I've tried. > > 1. yum install anjuta > -- It is not in the repositories That's correct. RPMForge has it listed on http://dag.wieers.com/rpm/packages/anjuta/ , but I only see old versions and no packages for EL5 (although you could try and rebuild the src.rpm). > 3. I found a 2.4.2 version of the source and tried to compile it. I > got to ./configure and it would crash. Claiming that the VTE > package could not be found. I got a VTE source file and was able to > compile it without any problems. However it was supposed to be > version 0.16.2 and when I did a yum info vte I get version 0.14.0. > Anyhow, yum says vte has been installled. When installing packages that are needed to build software, you need the -devel version. Did you install vte-devel? If the Anjuta source you have really requires vte 0.16.2 and you have 0.14.0 then I don't think that's going to work. You'll then need to also build vte 0.16.2 from source. > 4. I found an .rpm version of Anjuta for distributions other than > Fedora 3 and it stops at the public key thing. I don't have the > public key so it stops. Get the key and import it. Or if you trust the package without getting the key, you can tell your package manager to skip the key check: yum --nogpgcheck localinstall > Any suggestions? You could try and find an IDE that is packaged for CentOS? Nils Breunese. From k12ltsp at rwcinc.net Thu Sep 4 13:27:55 2008 From: k12ltsp at rwcinc.net (Patrick Fleming) Date: Thu, 04 Sep 2008 06:27:55 -0700 Subject: [K12OSN] transparent proxy setup In-Reply-To: <48BEFC64.10000@steibel.org> References: <48BEFC64.10000@steibel.org> Message-ID: <48BFE25B.5030905@rwcinc.net> Hi Scott, To allow DHCP you have to open the ports: http://www.faqs.org/docs/iptables/lettingdhcprequests.html There is no need to move Squid to another box. DHCP will require the box to accept addresses not yet in the pool so if you have a rule that limits access to the server based upon IP you have to loosen ports 67-68. Scott Steibel wrote: > I've got k12ltsp running using centos (5.0.0EL -64) > > All works fine, except, when I try to run dansquardian with squid as a > transparent proxy. I used IPtables to redirect request to go thru > squid to dansguardian then out to the net. > > I followed these instructions. http://www.linux.com/articles/113733 > > The problem seems to be that iptables is bocking either the dhcp or the > tftp during the workstation boot up. > When I stop the iptable service on the server, the workstations boot > right up. But, of course this leave me with no transparent proxying, > no danguardian. > > > I googled around a bit, These are my questions at the moment. > > Seems, like I need to set up a separate box to function as the > transparent proxy server with squid? Is this true? > > > > If so, how would I point the ltsp server and the workstatons to this > separate box. > > Any guidance is greatly appreciated. > > Scott > > > > > > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > From brian at portsmouth-college.ac.uk Thu Sep 4 13:40:45 2008 From: brian at portsmouth-college.ac.uk (Brian Chivers) Date: Thu, 04 Sep 2008 14:40:45 +0100 Subject: [K12OSN] Flash plugin with Firefox 64 bit In-Reply-To: <72869587-7D91-4B30-96B2-6CCD9323DA8C@pcc.com> References: <48BFC679.3000200@portsmouth-college.ac.uk> <72869587-7D91-4B30-96B2-6CCD9323DA8C@pcc.com> Message-ID: <48BFE55D.7030908@portsmouth-college.ac.uk> Lewis Holcroft wrote: > Brian, > > Yes I got it working with 64 bit. I found instructions in the k12ltsp > wiki I think. > > Getting the 32 bit running was simple. > Yum remove firefox.86x64 > > Lewis > > On Sep 4, 2008, at 7:28 AM, Brian Chivers > wrote: > >> Sorry another question :-) >> >> Hasd anyone got the flash plugin working with Firefox 64 bit ?? >> >> If not how can I force our box to run the 32 bit version. >> >> Thanks >> Brian >> >> ------------------------------------------------------------------------------------------------ >> >> The views expressed here are my own and not necessarily >> the views of Portsmouth College >> _______________________________________________ >> K12OSN mailing list >> K12OSN at redhat.com >> https://www.redhat.com/mailman/listinfo/k12osn >> For more info see > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > > Decided from what everyone has said was to remove the 64bit Firefox but I'll jave to wait as yum remove firefox.x86_64 times out with the following error http://k12linux.mesd.k12.or.us/K12LTSP/5.0.0-EL-64bit/repodata/repomd.xml: [Errno 4] IOError: Trying other mirror. Error: Cannot retrieve repository metadata (repomd.xml) for repository: k12ltsp. Please verify its path and try again :-/ Brian ------------------------------------------------------------------------------------------------ The views expressed here are my own and not necessarily the views of Portsmouth College From brian at portsmouth-college.ac.uk Thu Sep 4 13:42:14 2008 From: brian at portsmouth-college.ac.uk (Brian Chivers) Date: Thu, 04 Sep 2008 14:42:14 +0100 Subject: [K12OSN] Setting proxy for Firefox 3 all users *ARRRGGGHHH* This old chestnut again :-) In-Reply-To: References: <48BFC0AC.9090707@portsmouth-college.ac.uk> Message-ID: <48BFE5B6.4020102@portsmouth-college.ac.uk> David Hopkins wrote: >> /usr/lib/firefox-3.0.1/defaults/profile/prefs.js >> /usr/lib64/firefox-3.0.1/defaults/profile/prefs.js >> /usr/lib64/firefox-3.0.1/defaults/preferences/firefox.js >> /usr/lib/firefox-3.0.1/defaults/preferences/firefox.js >> > > On all my ltsp servers, I edited the > /usr/lib/firefox-3.0.1/defaults/preferences/firefox.js file and added > all the proxy related changes (about 22 lines I think). Does the > local prefs.js override the default? If so, could you use a login > script to automatically add those 22 lines to each user's prefs.js on > login? (or just delete the user's prefs.js and force it to be > recreated from the defaults?) > > Sincerely, > Dave Hopkins > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > > What I did in the end was to add the setting's I wanted to firefox.js & also setup one user as I wanted them & copied there ~/.mozilla/firefox to /etc/skel/.mozilla so all the new users get this for bookmarks etc :-) Brian ------------------------------------------------------------------------------------------------ The views expressed here are my own and not necessarily the views of Portsmouth College From nils at breun.nl Thu Sep 4 14:18:42 2008 From: nils at breun.nl (Nils Breunese) Date: Thu, 4 Sep 2008 16:18:42 +0200 Subject: [K12OSN] Flash plugin with Firefox 64 bit In-Reply-To: <48BFE55D.7030908@portsmouth-college.ac.uk> References: <48BFC679.3000200@portsmouth-college.ac.uk> <72869587-7D91-4B30-96B2-6CCD9323DA8C@pcc.com> <48BFE55D.7030908@portsmouth-college.ac.uk> Message-ID: Brian Chivers wrote: > Decided from what everyone has said was to remove the 64bit Firefox > but I'll jave to wait as > > yum remove firefox.x86_64 > > times out with the following error > > http://k12linux.mesd.k12.or.us/K12LTSP/5.0.0-EL-64bit/repodata/repomd.xml > : [Errno 4] IOError: resolution')> > Trying other mirror. > Error: Cannot retrieve repository metadata (repomd.xml) for > repository: k12ltsp. Please verify its path and try again > > :-/ I also noticed the repositories being unavailable. You can disable repositories using yum's --disablerepo flag so that it just skips those for that yum run, but it's probably easier to go through rpm directly: # rpm -e firefox.x86_64 Nils Breunese. From brian at portsmouth-college.ac.uk Thu Sep 4 14:37:20 2008 From: brian at portsmouth-college.ac.uk (Brian Chivers) Date: Thu, 04 Sep 2008 15:37:20 +0100 Subject: [K12OSN] Flash plugin with Firefox 64 bit In-Reply-To: References: <48BFC679.3000200@portsmouth-college.ac.uk> <72869587-7D91-4B30-96B2-6CCD9323DA8C@pcc.com> <48BFE55D.7030908@portsmouth-college.ac.uk> Message-ID: <48BFF2A0.9030101@portsmouth-college.ac.uk> Nils Breunese wrote: > Brian Chivers wrote: > >> Decided from what everyone has said was to remove the 64bit Firefox >> but I'll jave to wait as >> >> yum remove firefox.x86_64 >> >> times out with the following error >> >> http://k12linux.mesd.k12.or.us/K12LTSP/5.0.0-EL-64bit/repodata/repomd.xml: >> [Errno 4] IOError: > resolution')> >> Trying other mirror. >> Error: Cannot retrieve repository metadata (repomd.xml) for >> repository: k12ltsp. Please verify its path and try again >> >> :-/ > > I also noticed the repositories being unavailable. You can disable > repositories using yum's --disablerepo flag so that it just skips those > for that yum run, but it's probably easier to go through rpm directly: > > # rpm -e firefox.x86_64 > > Nils Breunese. > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > > I did a yum -C remove firefox.x86_64 and it's all gone away now & firefox 32 bit with plugins working :-) Brian ------------------------------------------------------------------------------------------------ The views expressed here are my own and not necessarily the views of Portsmouth College From nils at breun.nl Thu Sep 4 14:57:30 2008 From: nils at breun.nl (Nils Breunese) Date: Thu, 4 Sep 2008 16:57:30 +0200 Subject: [K12OSN] Flash plugin with Firefox 64 bit In-Reply-To: <48BFF2A0.9030101@portsmouth-college.ac.uk> References: <48BFC679.3000200@portsmouth-college.ac.uk> <72869587-7D91-4B30-96B2-6CCD9323DA8C@pcc.com> <48BFE55D.7030908@portsmouth-college.ac.uk> <48BFF2A0.9030101@portsmouth-college.ac.uk> Message-ID: <790A7587-C195-46BF-807D-730309768DF7@breun.nl> Brian Chivers wrote: > Nils Breunese wrote: >> Brian Chivers wrote: >>> Decided from what everyone has said was to remove the 64bit >>> Firefox but I'll jave to wait as >>> >>> yum remove firefox.x86_64 >>> >>> times out with the following error >>> >>> http://k12linux.mesd.k12.or.us/K12LTSP/5.0.0-EL-64bit/repodata/repomd.xml >>> : [Errno 4] IOError: >> name resolution')> >>> Trying other mirror. >>> Error: Cannot retrieve repository metadata (repomd.xml) for >>> repository: k12ltsp. Please verify its path and try again >>> >>> :-/ >> I also noticed the repositories being unavailable. You can disable >> repositories using yum's --disablerepo flag so that it just skips >> those for that yum run, but it's probably easier to go through rpm >> directly: >> # rpm -e firefox.x86_64 > > I did a yum -C remove firefox.x86_64 and it's all gone away now & > firefox 32 bit with plugins working :-) Ah yes, yum's -C flag (don't update cache) was even smarter than my -- disablerepo suggestion (as you'd have to disable multiple repositories). Let's hope the k12ltsp repo's are up again soon. Nils Breunese. From cramptons at duvalschools.org Thu Sep 4 15:27:37 2008 From: cramptons at duvalschools.org (Crampton, Stephen C.) Date: Thu, 4 Sep 2008 11:27:37 -0400 Subject: [K12OSN] Switching Network Cards References: <20080903160040.E69358E06DA@hormel.redhat.com> <48BFE78B.3020903@deltacfax.com> Message-ID: Unfortunately, I do not seem to have a network-scripts folder. I'm running Edubuntu 8.04. > > I installed Edubuntu with LTSP on a box with two network cards. > Edubuntu wants to use eth0 for communicating with clients and eth1 for > communicating with the world. > > eth1 is a gigabit card, so I would like to switch things around. > Could someone tell me which configuration files need to be modified so > that eth0 will communicate with the world and eth1 will communicate > with the LTSP clients? > You can force a NIC to be associated with a specific ethX by editing /etc/sysconfig/network-scripts/ifcfg-ethX. If you specify the MAC address and the ethX you want, you can completely determine the binding, like this: *HWADDR=00:1A:64:32:94:26 DEVICE=eth0* IPADDR=10.0.61.8 NETMASK=255.255.0.0 ONBOOT=yes TYPE=Ethernet best, -tim The information contained in this message may be privileged and confidential and protected from disclosure. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by replying to the message and deleting it from your computer. Under Florida law, e-mail addresses are public records. If you do not want your e-mail address released in response to a public-records request, do not send electronic mail to this entity. Instead, contact this office by phone or in writing. -------------- next part -------------- An HTML attachment was scrubbed... URL: From rob.owens at biochemfluidics.com Thu Sep 4 15:31:05 2008 From: rob.owens at biochemfluidics.com (Rob Owens) Date: Thu, 04 Sep 2008 11:31:05 -0400 Subject: [K12OSN] Switching Network Cards In-Reply-To: References: <20080903160040.E69358E06DA@hormel.redhat.com> <48BFE78B.3020903@deltacfax.com> Message-ID: <48BFFF39.70708@biochemfluidics.com> I think network-scripts is only present in RedHat-like systems. -Rob Crampton, Stephen C. wrote: > Unfortunately, I do not seem to have a network-scripts folder. I'm > running Edubuntu 8.04. > > >> >> I installed Edubuntu with LTSP on a box with two network cards. >> Edubuntu wants to use eth0 for communicating with clients and eth1 for >> communicating with the world. >> >> eth1 is a gigabit card, so I would like to switch things around. >> Could someone tell me which configuration files need to be modified so >> that eth0 will communicate with the world and eth1 will communicate >> with the LTSP clients? >> > You can force a NIC to be associated with a specific ethX by editing > /etc/sysconfig/network-scripts/ifcfg-ethX. If you specify the MAC > address and the ethX you want, you can completely determine the binding, > like this: > > *HWADDR=00:1A:64:32:94:26 > DEVICE=eth0* > IPADDR=10.0.61.8 > NETMASK=255.255.0.0 > ONBOOT=yes > TYPE=Ethernet > > best, > -tim > > > The information contained in this message may be privileged and > confidential and protected from disclosure. If the reader of this > message is not the intended recipient, or an employee or agent > responsible for delivering this message to the intended recipient, you > are hereby notified that any dissemination, distribution or copying of > this communication is strictly prohibited. If you have received this > communication in error, please notify us immediately by replying to the > message and deleting it from your computer. Under Florida law, e-mail > addresses are public records. If you do not want your e-mail address > released in response to a public-records request, do not send electronic > mail to this entity. Instead, contact this office by phone or in writing. > > > ------------------------------------------------------------------------ > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** From henryhartley at westat.com Thu Sep 4 15:36:39 2008 From: henryhartley at westat.com (Henry Hartley) Date: Thu, 4 Sep 2008 11:36:39 -0400 Subject: [K12OSN] Flash plugin with Firefox 64 bit In-Reply-To: <548C79C6-613B-4335-8CD4-84C372A49296@breun.nl> Message-ID: <62432006F5965C42BAEC4EA29286EE0507AB37A54F@EX-CMS01.westat.com> Nils Breunese wrote: >> >> Brian Chivers wrote: >> > Hasd anyone got the flash plugin working with Firefox 64 bit ?? >> >> It's supposed to work if you use nspluginwrapper, but Firefox kept >> crashing on our setup, so we went back to 32-bit Firefox with >> 32-bit Flash (there is no 64-bit Flash plugin) and 32-bit Java >> plugin (also not available in 64-bit). >> I have no idea how far into the future this is but I came across this blog posting (dated August 21) yesterday: http://thebackbutton.com/blog/73/64-bit-linux-freebsd-flash-player-exists/ 64 bit Linux / FreeBSD Flash Player exists I just watched Tinic from the Flash Player team demo two 64bit versions of Flash Player 10 here at FlashForward. One on Unbunu Linux and the other running on FreeBSD. Tinic also showed a 32bit version of the FreeBSD player. At this point however, there if no solid plan for release. Unfortunately, Tinic's blog doesn't make any mention of all this. His latest post is from July, so maybe he's working too hard on a 64-bit plugin to have time to blog. Still, it sounds like things are moving in the right direction, anyway. -- Henry From microman at cmosnetworks.com Thu Sep 4 15:38:40 2008 From: microman at cmosnetworks.com (Terrell Prude' Jr.) Date: Thu, 4 Sep 2008 11:38:40 -0400 Subject: [K12OSN] Switching Network Cards In-Reply-To: <48BFFF39.70708@biochemfluidics.com> References: <20080903160040.E69358E06DA@hormel.redhat.com> <48BFFF39.70708@biochemfluidics.com> Message-ID: <200809041138.41044.microman@cmosnetworks.com> That's correct. On Debian-like systems, you want the file /etc/network/interfaces. --TP On Thursday 04 September 2008 11:31, Rob Owens wrote: > I think network-scripts is only present in RedHat-like systems. > > -Rob > > Crampton, Stephen C. wrote: > > Unfortunately, I do not seem to have a network-scripts folder. I'm > > running Edubuntu 8.04. > > > >> I installed Edubuntu with LTSP on a box with two network cards. > >> Edubuntu wants to use eth0 for communicating with clients and eth1 for > >> communicating with the world. > >> > >> eth1 is a gigabit card, so I would like to switch things around. > >> Could someone tell me which configuration files need to be modified so > >> that eth0 will communicate with the world and eth1 will communicate > >> with the LTSP clients? > > > > You can force a NIC to be associated with a specific ethX by editing > > /etc/sysconfig/network-scripts/ifcfg-ethX. If you specify the MAC > > address and the ethX you want, you can completely determine the binding, > > like this: > > > > *HWADDR=00:1A:64:32:94:26 > > DEVICE=eth0* > > IPADDR=10.0.61.8 > > NETMASK=255.255.0.0 > > ONBOOT=yes > > TYPE=Ethernet > > > > best, > > -tim > > > > > > The information contained in this message may be privileged and > > confidential and protected from disclosure. If the reader of this > > message is not the intended recipient, or an employee or agent > > responsible for delivering this message to the intended recipient, you > > are hereby notified that any dissemination, distribution or copying of > > this communication is strictly prohibited. If you have received this > > communication in error, please notify us immediately by replying to the > > message and deleting it from your computer. Under Florida law, e-mail > > addresses are public records. If you do not want your e-mail address > > released in response to a public-records request, do not send electronic > > mail to this entity. Instead, contact this office by phone or in writing. > > > > > > ------------------------------------------------------------------------ > > > > _______________________________________________ > > K12OSN mailing list > > K12OSN at redhat.com > > https://www.redhat.com/mailman/listinfo/k12osn > > For more info see > > ******************************************************** > > The information transmitted is intended only for the person or entity to > which it is addressed and may contain confidential and/or privileged > material. If you are not the addressee, any disclosure, reproduction, > copying, distribution, or other dissemination or use of this transmission > in error please notify the sender immediately and then delete this e-mail. > E-mail transmission cannot be guaranteed to be secure or error free as > information could be intercepted, corrupted lost, destroyed, arrive late or > incomplete, or contain viruses. > The sender therefore does not accept liability for any errors or omissions > in the contents of this message which arise as a result of e-mail > transmission. If verification is required please request a hard copy > version. > > ******************************************************** > > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see From nils at breun.nl Thu Sep 4 15:44:44 2008 From: nils at breun.nl (Nils Breunese) Date: Thu, 4 Sep 2008 17:44:44 +0200 Subject: [K12OSN] Flash plugin with Firefox 64 bit In-Reply-To: <62432006F5965C42BAEC4EA29286EE0507AB37A54F@EX-CMS01.westat.com> References: <62432006F5965C42BAEC4EA29286EE0507AB37A54F@EX-CMS01.westat.com> Message-ID: <14F5879E-B895-455D-82A1-B158CD11821F@breun.nl> Henry Hartley wrote: > I have no idea how far into the future this is but I came across > this blog posting (dated August 21) yesterday: > > http://thebackbutton.com/blog/73/64-bit-linux-freebsd-flash-player-exists/ > 64 bit Linux / FreeBSD Flash Player exists > I just watched Tinic from the Flash Player team demo two 64bit > versions of Flash Player 10 here at FlashForward. One on Unbunu > Linux and the other running on FreeBSD. Tinic also showed a 32bit > version of the FreeBSD player. At this point however, there if no > solid plan for release. > > Unfortunately, Tinic's blog doesn't make any mention of all this. > His latest post is from July, so maybe he's working too hard on a 64- > bit plugin to have time to blog. Still, it sounds like things are > moving in the right direction, anyway. Adobe's Penguin.SWF blog is the one to watch: http://blogs.adobe.com/penguin.swf/ I see it's linking to the Tinic story you mentioned. Nils Breunese. From robark at gmail.com Thu Sep 4 17:07:21 2008 From: robark at gmail.com (Robert Arkiletian) Date: Thu, 4 Sep 2008 10:07:21 -0700 Subject: [K12OSN] Installing Anjuta on CentOS5 In-Reply-To: References: Message-ID: 2008/9/4 jones yeates : > 3. I found a 2.4.2 version of the source and tried to compile it. I got to > ./configure and it would crash. Claiming that the VTE package could not be > found. I got a VTE source file and was able to compile it without any > problems. However it was supposed to be version 0.16.2 and when I did a yum > info vte I get version 0.14.0. Anyhow, yum says vte has been installled. Try downloading version 1.2.4a from here http://sourceforge.net/project/showfiles.php?group_id=14222&package_id=11898 it should be much easier to compile from source. -- Robert Arkiletian Eric Hamber Secondary, Vancouver, Canada Fl_TeacherTool http://www3.telus.net/public/robark/Fl_TeacherTool/ C++ GUI tutorial http://www3.telus.net/public/robark/ From wtogami at redhat.com Thu Sep 4 17:42:15 2008 From: wtogami at redhat.com (Warren Togami) Date: Thu, 04 Sep 2008 13:42:15 -0400 Subject: [K12OSN] Flash and nspluginwrapper In-Reply-To: <14F5879E-B895-455D-82A1-B158CD11821F@breun.nl> References: <62432006F5965C42BAEC4EA29286EE0507AB37A54F@EX-CMS01.westat.com> <14F5879E-B895-455D-82A1-B158CD11821F@breun.nl> Message-ID: <48C01DF7.7020208@redhat.com> Hi folks, Fedora 8+ and RHEL5+ use nspluginwrapper by default even on i386. Why? Because nspluginwrapper runs the plugins in a separate process, so plugin crashes do not take Firefox down with it. (There is one Flash 10 induced browser crash that nspluginwrapper cannot protect against. See below for workaround.) http://macromedia.mplug.org/ You need a bunch of workarounds to make Flash 10 work reliably on RHEL5 through Fedora 10. Soon these workarounds will be released as package updates. Flash 10 with these workarounds is a bit less crashy than Flash 9. If you see further problems after these workarounds please file bugs instead of ripping pieces out. nspluginwrapper is default for a reason. We can't fix problems if you don't report them. Thank you. Warren Togami wtogami at redhat.com From nils at breun.nl Thu Sep 4 18:08:41 2008 From: nils at breun.nl (Nils Breunese) Date: Thu, 4 Sep 2008 20:08:41 +0200 Subject: [K12OSN] Flash and nspluginwrapper In-Reply-To: <48C01DF7.7020208@redhat.com> References: <62432006F5965C42BAEC4EA29286EE0507AB37A54F@EX-CMS01.westat.com> <14F5879E-B895-455D-82A1-B158CD11821F@breun.nl> <48C01DF7.7020208@redhat.com> Message-ID: <8E2AE174-B87B-46FB-90CF-C6DC05CEB17F@breun.nl> Warren Togami wrote: > Fedora 8+ and RHEL5+ use nspluginwrapper by default even on i386. > > Why? > > Because nspluginwrapper runs the plugins in a separate process, so > plugin crashes do not take Firefox down with it. That's not our experience. Firefox crashed randomly and nspluginwrapper + Flash seemd to be the culprit. We're not on RHEL5+ though (as it's not out yet AFAIK), just CentOS 5.2. > If you see further problems after these workarounds please file bugs > instead of ripping pieces out. nspluginwrapper is default for a > reason. We can't fix problems if you don't report them. If had something reportable I would have reported it, but we didn't find anything reproducable. We only had users complaining about randomly Firefox crashing in a production environment and switchting to 32-bit fixed it. Nils Breunese. From robark at gmail.com Thu Sep 4 19:08:29 2008 From: robark at gmail.com (Robert Arkiletian) Date: Thu, 4 Sep 2008 12:08:29 -0700 Subject: [K12OSN] Flash and nspluginwrapper In-Reply-To: <48C01DF7.7020208@redhat.com> References: <62432006F5965C42BAEC4EA29286EE0507AB37A54F@EX-CMS01.westat.com> <14F5879E-B895-455D-82A1-B158CD11821F@breun.nl> <48C01DF7.7020208@redhat.com> Message-ID: On Thu, Sep 4, 2008 at 10:42 AM, Warren Togami wrote: > Hi folks, > > Fedora 8+ and RHEL5+ use nspluginwrapper by default even on i386. > > Why? > > Because nspluginwrapper runs the plugins in a separate process, so plugin > crashes do not take Firefox down with it. > Is there a way to automatically set the nice value of these nspluginwrapper processes to 19. Opera does this by default and it really makes a big difference to keep the server responsive even when many users are viewing flash videos. I have discovered that with flash 9 version 115 and 124 Adobe seems to have made the player more threaded. So it more effectively utilizes all cpu cores. In our situation this is not a good thing. I found flash 9 version 48 to be better behaved and less of a cpu hog. The only problem is the security updates that version lacks. -- Robert Arkiletian Eric Hamber Secondary, Vancouver, Canada Fl_TeacherTool http://www3.telus.net/public/robark/Fl_TeacherTool/ C++ GUI tutorial http://www3.telus.net/public/robark/ From brcisna at eazylivin.net Thu Sep 4 20:37:02 2008 From: brcisna at eazylivin.net (Barry R Cisna) Date: Thu, 04 Sep 2008 15:37:02 -0500 Subject: [K12OSN] Setting proxy for Firefox 3 all users *ARRRGGGHHH* This old chestnut again :-) Message-ID: <1220560622.8031.7.camel@localhost.localdomain> Brian, This is how I have always hard coded in the proxy settings into firefox. This has worked from 1.4 up till now FF3.0. /usr/lib/firefox#.#.#/greprefs/all.js Load up the all.js file in Bluefish and scroll down to about line 783 and edit these lines. Put your IP's and port numbers in between the "" at each given line. BTW: These can be taken out if the little angels can get to the preferences in FF. Next login they are back in though... Hope this helps. Take Care, Barry Cisna From robark at gmail.com Thu Sep 4 21:01:28 2008 From: robark at gmail.com (Robert Arkiletian) Date: Thu, 4 Sep 2008 14:01:28 -0700 Subject: [K12OSN] Force system wide manual proxy setting with Opera Message-ID: I've been noticing people having problems forcing system wide settings for manual proxy settings. If you use Opera here is my /etc/opera6rc.fixed file which sets preferences that CANNOT be changed by users. ================================ ; Put any settings here that are not overridable by users [Disk Cache] Enabled=0 [Extensions] Plugins=1 [Sounds] Enabled=0 [State] Accept License=1 [Proxy] HTTP Server=192.168.0.254:80 Use HTTP=1 [User Prefs] Startup Type=2 Check For New Opera=0 Accept Cookies Session Only=1 Home URL=http://www.google.ca =================================== -- Robert Arkiletian Eric Hamber Secondary, Vancouver, Canada Fl_TeacherTool http://www3.telus.net/public/robark/Fl_TeacherTool/ C++ GUI tutorial http://www3.telus.net/public/robark/ From wtogami at redhat.com Thu Sep 4 21:16:32 2008 From: wtogami at redhat.com (Warren Togami) Date: Thu, 04 Sep 2008 17:16:32 -0400 Subject: [K12OSN] Flash and nspluginwrapper In-Reply-To: References: <62432006F5965C42BAEC4EA29286EE0507AB37A54F@EX-CMS01.westat.com> <14F5879E-B895-455D-82A1-B158CD11821F@breun.nl> <48C01DF7.7020208@redhat.com> Message-ID: <48C05030.5000208@redhat.com> Robert Arkiletian wrote: > On Thu, Sep 4, 2008 at 10:42 AM, Warren Togami wrote: >> Hi folks, >> >> Fedora 8+ and RHEL5+ use nspluginwrapper by default even on i386. >> >> Why? >> >> Because nspluginwrapper runs the plugins in a separate process, so plugin >> crashes do not take Firefox down with it. >> > > Is there a way to automatically set the nice value of these > nspluginwrapper processes to 19. Opera does this by default and it > really makes a big difference to keep the server responsive even when > many users are viewing flash videos. > > I have discovered that with flash 9 version 115 and 124 Adobe seems to > have made the player more threaded. So it more effectively utilizes > all cpu cores. In our situation this is not a good thing. I found > flash 9 version 48 to be better behaved and less of a cpu hog. The > only problem is the security updates that version lacks. /usr/lib/nspluginwrapper/npviewer This shell scripts launches npviewer.bin which runs the plugins in a separate process. You could run things before npviewer.bin like taskset -c with a random CPU number. CPU=$[$RANDOM % `getconf _NPROCESSORS_ONLN`] exec taskset -c $CPU $LOADER $NPW_VIEWER_DIR/npviewer.bin ${1+"$@"} Something like this. I am thinking about adding a /etc/sysconfig file for this sort of thing. It is needed for other special purposes sometimes. Warren Togami wtogami at redhat.com From wtogami at redhat.com Thu Sep 4 21:33:20 2008 From: wtogami at redhat.com (Warren Togami) Date: Thu, 04 Sep 2008 17:33:20 -0400 Subject: [K12OSN] Flash and nspluginwrapper In-Reply-To: <8E2AE174-B87B-46FB-90CF-C6DC05CEB17F@breun.nl> References: <62432006F5965C42BAEC4EA29286EE0507AB37A54F@EX-CMS01.westat.com> <14F5879E-B895-455D-82A1-B158CD11821F@breun.nl> <48C01DF7.7020208@redhat.com> <8E2AE174-B87B-46FB-90CF-C6DC05CEB17F@breun.nl> Message-ID: <48C05420.5020200@redhat.com> Nils Breunese wrote: > Warren Togami wrote: > >> Fedora 8+ and RHEL5+ use nspluginwrapper by default even on i386. >> >> Why? >> >> Because nspluginwrapper runs the plugins in a separate process, so >> plugin crashes do not take Firefox down with it. > > That's not our experience. Firefox crashed randomly and nspluginwrapper > + Flash seemd to be the culprit. We're not on RHEL5+ though (as it's not > out yet AFAIK), just CentOS 5.2. > You do know that CentOS 5.2 is a source rebuild clone of RHEL-5.2? Specifically what plugin were you using during the crash? What version of the plugin? http://macromedia.mplug.org/ We seriously need these details. I am not aware of anything other than problem #1 here that could crash firefox due to a plugin problem when nspluginwrapper is involved. Warren Togami wtogami at redhat.com From nils at breun.nl Thu Sep 4 22:38:27 2008 From: nils at breun.nl (Nils Breunese) Date: Fri, 5 Sep 2008 00:38:27 +0200 Subject: [K12OSN] Flash and nspluginwrapper In-Reply-To: <48C05420.5020200@redhat.com> References: <62432006F5965C42BAEC4EA29286EE0507AB37A54F@EX-CMS01.westat.com> <14F5879E-B895-455D-82A1-B158CD11821F@breun.nl> <48C01DF7.7020208@redhat.com> <8E2AE174-B87B-46FB-90CF-C6DC05CEB17F@breun.nl> <48C05420.5020200@redhat.com> Message-ID: Warren Togami wrote: > Nils Breunese wrote: >> Warren Togami wrote: >>> Fedora 8+ and RHEL5+ use nspluginwrapper by default even on i386. >>> >>> Why? >>> >>> Because nspluginwrapper runs the plugins in a separate process, so >>> plugin crashes do not take Firefox down with it. >> That's not our experience. Firefox crashed randomly and >> nspluginwrapper + Flash seemd to be the culprit. We're not on >> RHEL5+ though (as it's not out yet AFAIK), just CentOS 5.2. > > You do know that CentOS 5.2 is a source rebuild clone of RHEL-5.2? Yes. Hm, I guess by 5+ you didn't mean greater than 5 then. AFAIK nspluginwrapper was not in CentOS 5.0 and 5.1. We had to get the rpms from the nspluginwrapper site at the time. When nspluginwrapper appeared in the CentOS repositories that didn't help though. > Specifically what plugin were you using during the crash? > What version of the plugin? > > http://macromedia.mplug.org/ > We seriously need these details. I am not aware of anything other > than problem #1 here that could crash firefox due to a plugin > problem when nspluginwrapper is involved. I don't know, it was a couple of months ago. I'm sorry, I don't have a system (and the time) to test things at the moment. Nils Breunese. From wtogami at redhat.com Fri Sep 5 04:11:27 2008 From: wtogami at redhat.com (Warren Togami) Date: Fri, 05 Sep 2008 00:11:27 -0400 Subject: [K12OSN] Flash and nspluginwrapper In-Reply-To: References: <62432006F5965C42BAEC4EA29286EE0507AB37A54F@EX-CMS01.westat.com> <14F5879E-B895-455D-82A1-B158CD11821F@breun.nl> <48C01DF7.7020208@redhat.com> <8E2AE174-B87B-46FB-90CF-C6DC05CEB17F@breun.nl> <48C05420.5020200@redhat.com> Message-ID: <48C0B16F.1040006@redhat.com> Nils Breunese wrote: > Warren Togami wrote: > >> Nils Breunese wrote: >>> Warren Togami wrote: >>>> Fedora 8+ and RHEL5+ use nspluginwrapper by default even on i386. >>>> >>>> Why? >>>> >>>> Because nspluginwrapper runs the plugins in a separate process, so >>>> plugin crashes do not take Firefox down with it. >>> That's not our experience. Firefox crashed randomly and >>> nspluginwrapper + Flash seemd to be the culprit. We're not on RHEL5+ >>> though (as it's not out yet AFAIK), just CentOS 5.2. >> >> You do know that CentOS 5.2 is a source rebuild clone of RHEL-5.2? > > Yes. Hm, I guess by 5+ you didn't mean greater than 5 then. AFAIK > nspluginwrapper was not in CentOS 5.0 and 5.1. We had to get the rpms > from the nspluginwrapper site at the time. When nspluginwrapper appeared > in the CentOS repositories that didn't help though. > >> Specifically what plugin were you using during the crash? >> What version of the plugin? >> >> http://macromedia.mplug.org/ >> We seriously need these details. I am not aware of anything other >> than problem #1 here that could crash firefox due to a plugin problem >> when nspluginwrapper is involved. > > I don't know, it was a couple of months ago. I'm sorry, I don't have a > system (and the time) to test things at the moment. > nspluginwrapper for RHEL5 wasn't available a few months ago. It might have a bug I don't know about. Can somebody get actual test data? Reproduce procedure and exact version numbers of everything? Warren From brian at portsmouth-college.ac.uk Fri Sep 5 11:02:19 2008 From: brian at portsmouth-college.ac.uk (Brian Chivers) Date: Fri, 05 Sep 2008 12:02:19 +0100 Subject: [K12OSN] Setting proxy for Firefox 3 all users *ARRRGGGHHH* This old chestnut again :-) In-Reply-To: <1220560622.8031.7.camel@localhost.localdomain> References: <1220560622.8031.7.camel@localhost.localdomain> Message-ID: <48C111BB.8070505@portsmouth-college.ac.uk> Barry R Cisna wrote: > Brian, > > This is how I have always hard coded in the proxy settings into firefox. > This has worked from 1.4 up till now FF3.0. > /usr/lib/firefox#.#.#/greprefs/all.js > > Load up the all.js file in Bluefish and scroll down to about line 783 > and edit these lines. > Put your IP's and port numbers in between the "" at each given line. > > BTW: These can be taken out if the little angels can get to the > preferences in FF. Next login they are back in though... > Hope this helps. > > Take Care, > Barry Cisna > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > > Thanks For Firefox 2 I used the CCK to create a global plugin that set everything but this doesn't work with Firefox 3 and when I installed our second server it yum'd to 5.2 and firefox 3. I've hard coded it into firefox.js now & that seems to be working. I've also setup iptables as per the wiki to redirect everything on port 80 to our proxy so just have to do it for the other "popular ports now. Brian ------------------------------------------------------------------------------------------------ The views expressed here are my own and not necessarily the views of Portsmouth College From dahopkins429 at gmail.com Fri Sep 5 14:07:07 2008 From: dahopkins429 at gmail.com (David Hopkins) Date: Fri, 5 Sep 2008 10:07:07 -0400 Subject: [K12OSN] OT: Openldap and too many open files Message-ID: My ldap server is now failing with the slapd[17057]: warning: cannot open /etc/hosts.deny: Too many open files message. I have 100+ teachers and an additional 150+ students connecting at any given time. I run nscd on all my systems since this is a suggested solution for reducing the load and consequently the open files on the ldap server(s). I can restart ldap and it will run for a bit before issuing this warning at which point all authentication stops. I've googled for solutions and most suggest using ulimit in the ldap script to set the file limit higher. I have done so but it doesn't seem to make the change. Other responses on this suggest that I may have to recompile openldap and possibly nss related items as well to get around the issue. That is a daunting issue. I have also seen a suggestion to set the idletimeout in slapd.conf but I am not sure that this wouldn't adversely affect anything since it closes connections. Has anyone else seen this issue and implemented a solution? Sincerely, Dave Hopkins Has anyone else seen this issue and found a good solution to it? From microman at cmosnetworks.com Fri Sep 5 15:17:04 2008 From: microman at cmosnetworks.com (Terrell Prude' Jr.) Date: Fri, 5 Sep 2008 11:17:04 -0400 Subject: [K12OSN] OT: Openldap and too many open files In-Reply-To: References: Message-ID: <200809051117.04753.microman@cmosnetworks.com> On Friday 05 September 2008 10:07, David Hopkins wrote: > My ldap server is now failing with the > > slapd[17057]: warning: cannot open /etc/hosts.deny: Too many open files > > message. I have 100+ teachers and an additional 150+ students > connecting at any given time. I run nscd on all my systems since this > is a suggested solution for reducing the load and consequently the > open files on the ldap server(s). > > I can restart ldap and it will run for a bit before issuing this > warning at which point all authentication stops. I've googled for > solutions and most suggest using ulimit in the ldap script to set the > file limit higher. I have done so but it doesn't seem to make the > change. Other responses on this suggest that I may have to recompile > openldap and possibly nss related items as well to get around the > issue. That is a daunting issue. > > I have also seen a suggestion to set the idletimeout in slapd.conf but > I am not sure that this wouldn't adversely affect anything since it > closes connections. > > Has anyone else seen this issue and implemented a solution? > > Sincerely, > Dave Hopkins > > > Has anyone else seen this issue and found a good solution to it? Ahhh...that's an error I haven't seen in a long while. It sounds like you're running out of file descriptors. Try setting the fs.file-max parameter to something a bit bigger than it is now. BTW, I got this from about 5 minutes of Googling. It is your friend. :-) http://confluence.atlassian.com/display/DOC/Fix+'Too+many+open+files'+error+on+Linux+by+increasing+filehandles --TP From dahopkins429 at gmail.com Fri Sep 5 15:59:14 2008 From: dahopkins429 at gmail.com (David Hopkins) Date: Fri, 5 Sep 2008 11:59:14 -0400 Subject: [K12OSN] OT: Openldap and too many open files In-Reply-To: <200809051117.04753.microman@cmosnetworks.com> References: <200809051117.04753.microman@cmosnetworks.com> Message-ID: On Fri, Sep 5, 2008 at 11:17 AM, Terrell Prude' Jr. wrote: > On Friday 05 September 2008 10:07, David Hopkins wrote: >> My ldap server is now failing with the >> >> slapd[17057]: warning: cannot open /etc/hosts.deny: Too many open files >> >> message. I have 100+ teachers and an additional 150+ students >> connecting at any given time. I run nscd on all my systems since this >> is a suggested solution for reducing the load and consequently the >> open files on the ldap server(s). >> >> I can restart ldap and it will run for a bit before issuing this >> warning at which point all authentication stops. I've googled for >> solutions and most suggest using ulimit in the ldap script to set the >> file limit higher. I have done so but it doesn't seem to make the >> change. Other responses on this suggest that I may have to recompile >> openldap and possibly nss related items as well to get around the >> issue. That is a daunting issue. >> >> I have also seen a suggestion to set the idletimeout in slapd.conf but >> I am not sure that this wouldn't adversely affect anything since it >> closes connections. >> >> Has anyone else seen this issue and implemented a solution? >> >> Sincerely, >> Dave Hopkins >> >> >> Has anyone else seen this issue and found a good solution to it? > > Ahhh...that's an error I haven't seen in a long while. It sounds like you're > running out of file descriptors. Try setting the fs.file-max parameter to > something a bit bigger than it is now. > > BTW, I got this from about 5 minutes of Googling. It is your friend. :-) > > Must have used a different search string than I did for google. ;) I used "warning: cannot open /etc/hosts.deny: Too many open files" slapd and didn't hit that site. So fs-file-max is currently 205984 on the authentication server. The hit I got that prompted this post https://lists.ubuntu.com/archives/edubuntu-devel/2007-November/002463.html was by Jim Kronebusch where he suggested using * soft nofile 4096 * hard nofile 4096 in /etc/security/limits.conf. I can try both and see what happens. Sincerely, Dave Hopkins From cramptons at duvalschools.org Fri Sep 5 16:52:40 2008 From: cramptons at duvalschools.org (Crampton, Stephen C.) Date: Fri, 5 Sep 2008 12:52:40 -0400 Subject: [K12OSN] LTSP Lab Slow to Boot References: <20080905160038.DEC2A8E0F01@hormel.redhat.com> Message-ID: An embedded message was scrubbed... From: "Crampton, Stephen C." Subject: LTSP Lab Slow to Boot Date: Fri, 5 Sep 2008 12:52:40 -0400 Size: 17808 URL: -------------- next part -------------- The information contained in this message may be privileged and confidential and protected from disclosure. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by replying to the message and deleting it from your computer. Under Florida law, e-mail addresses are public records. If you do not want your e-mail address released in response to a public-records request, do not send electronic mail to this entity. Instead, contact this office by phone or in writing. From microman at cmosnetworks.com Fri Sep 5 17:12:05 2008 From: microman at cmosnetworks.com (Terrell Prude' Jr.) Date: Fri, 5 Sep 2008 13:12:05 -0400 Subject: [K12OSN] LTSP Lab Slow to Boot In-Reply-To: References: <20080905160038.DEC2A8E0F01@hormel.redhat.com> Message-ID: <200809051312.06092.microman@cmosnetworks.com> I personally don't see anything out of line with your server, based on the info you've provided. The only thing that comes to mind is a possible bandwidth issue if your 8 or 9 clients are doing any heavy screen updates (e. g. TuxType or any Flash). If the TigerSwitch is indeed a 10/100 switch, then your server's on a 100Mbps port, and those are pretty easy to overwhelm with X11 traffic. This could cause the symptoms that you're seeing. That's why it's better to put the server (at least eth0) on Gig-E. If your server's eth0 is on Gig-E, and you don't have any 10/100 bottlenecks between it and the clients, then there's one other possibility that comes to mind. I've had some thin client stability issues with Edubuntu before, one of them in the middle of an LTSP demo. Fortunately, I also had a K12LTSP 5EL box, which saved my butt big-time that day. Do you have a spare machine that you can put K12LTSP 4EL or 5EL on and, for troubleshooting purposes only, swap out the Edubuntu box for this box? --TP On Friday 05 September 2008 12:52, Crampton, Stephen C. wrote: > My LTSP clients take a long time to boot. Some of the first ones boot in > about a minute, but after about 8 or 9 are up, the others keep saying "No > DHCP Offers Received." If I leave them long enough, they eventually all > boot. > > Another clue: It takes over a minute for the first sudo command to accept > the root password. > > Could someone please give me some suggestions? Here's what I can tell you > about the setup. > > Edubuntu 8.04 > > SWITCH > > SMC TigerSwitch 10/100 6128L2 > > > CLIENTS > > Lenovo machines with Intel processors > > > SERVER > > mrc at Ada:/proc$ cat cpuinfo > processor : 0 > vendor_id : AuthenticAMD > cpu family : 15 > model : 107 > model name : AMD Athlon(tm) 64 X2 Dual Core Processor 4000+ > stepping : 1 > cpu MHz : 2101.332 > cache size : 512 KB > physical id : 0 > siblings : 2 > core id : 0 > cpu cores : 2 > fdiv_bug : no > hlt_bug : no > f00f_bug : no > coma_bug : no > fpu : yes > fpu_exception : yes > cpuid level : 1 > wp : yes > flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat > pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt rdtscp lm > 3dnowext 3dnow pni cx16 lahf_lm cmp_legacy svm extapic cr8_legacy > 3dnowprefetch ts fid vid ttp tm stc 100mhzsteps bogomips : 4205.03 > clflush size : 64 > > processor : 1 > vendor_id : AuthenticAMD > cpu family : 15 > model : 107 > model name : AMD Athlon(tm) 64 X2 Dual Core Processor 4000+ > stepping : 1 > cpu MHz : 2101.332 > cache size : 512 KB > physical id : 0 > siblings : 2 > core id : 1 > cpu cores : 2 > fdiv_bug : no > hlt_bug : no > f00f_bug : no > coma_bug : no > fpu : yes > fpu_exception : yes > cpuid level : 1 > wp : yes > flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat > pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt rdtscp lm > 3dnowext 3dnow pni cx16 lahf_lm cmp_legacy svm extapic cr8_legacy > 3dnowprefetch ts fid vid ttp tm stc 100mhzsteps bogomips : 4202.52 > clflush size : 64 > > > > mrc at Ada:/proc$ ifconfig > eth0 Link encap:Ethernet HWaddr 00:18:f8:0b:40:0d > inet addr:192.168.0.254 Bcast:192.168.0.255 Mask:255.255.255.0 > inet6 addr: fe80::218:f8ff:fe0b:400d/64 Scope:Link > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:253305 errors:0 dropped:0 overruns:0 frame:0 > TX packets:309896 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:46515129 (44.3 MB) TX bytes:301639706 (287.6 MB) > Interrupt:20 Base address:0xcc00 > > eth1 Link encap:Ethernet HWaddr 00:1d:60:b7:ad:a7 > inet addr:169.157.241.64 Bcast:169.157.241.255 > Mask:255.255.255.0 inet6 addr: fe80::21d:60ff:feb7:ada7/64 Scope:Link > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:8010 errors:0 dropped:0 overruns:0 frame:0 > TX packets:1607 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:1006100 (982.5 KB) TX bytes:205995 (201.1 KB) > Interrupt:19 Base address:0x4800 > > lo Link encap:Local Loopback > inet addr:127.0.0.1 Mask:255.0.0.0 > inet6 addr: ::1/128 Scope:Host > UP LOOPBACK RUNNING MTU:16436 Metric:1 > RX packets:1063 errors:0 dropped:0 overruns:0 frame:0 > TX packets:1063 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:0 > RX bytes:56736 (55.4 KB) TX bytes:56736 (55.4 KB) > > > mrc at Ada:/proc$ cat loadavg > 0.09 0.14 0.06 4/626 16166 > mrc at Ada:/proc$ cat meminfo > MemTotal: 3107580 kB > MemFree: 1828200 kB > Buffers: 27004 kB > Cached: 418752 kB > SwapCached: 0 kB > Active: 894940 kB > Inactive: 274108 kB > HighTotal: 2227904 kB > HighFree: 1065644 kB > LowTotal: 879676 kB > LowFree: 762556 kB > SwapTotal: 9100780 kB > SwapFree: 9100780 kB > Dirty: 48 kB > Writeback: 0 kB > AnonPages: 723452 kB > Mapped: 71072 kB > Slab: 37780 kB > SReclaimable: 17272 kB > SUnreclaim: 20508 kB > PageTables: 10208 kB > NFS_Unstable: 0 kB > Bounce: 0 kB > CommitLimit: 10654568 kB > Committed_AS: 2302184 kB > VmallocTotal: 114680 kB > VmallocUsed: 8420 kB > VmallocChunk: 106148 kB > mrc at Ada:/proc$ > > > mrc at Ada:/proc$ cat modules > snd_rtctimer 4640 1 - Live 0xf8fff000 > binfmt_misc 12808 1 - Live 0xf9040000 > via 43648 2 - Live 0xf9010000 > drm 82452 3 via, Live 0xf902a000 > rfcomm 41744 2 - Live 0xf9004000 > l2cap 25728 13 rfcomm, Live 0xf8fdb000 > bluetooth 61156 4 rfcomm,l2cap, Live 0xf8fe6000 > ppdev 10372 0 - Live 0xf8add000 > cpufreq_stats 7104 0 - Live 0xf8ab7000 > cpufreq_powersave 2688 0 - Live 0xf8867000 > cpufreq_conservative 8712 0 - Live 0xf8ad9000 > cpufreq_userspace 5284 0 - Live 0xf8ac5000 > cpufreq_ondemand 9740 0 - Live 0xf8ad0000 > freq_table 5536 2 cpufreq_stats,cpufreq_ondemand, Live 0xf8ac2000 > video 19856 0 - Live 0xf8aca000 > output 4736 1 video, Live 0xf8aba000 > sbs 15112 0 - Live 0xf8abd000 > sbshc 7680 1 sbs, Live 0xf8a97000 > container 5632 0 - Live 0xf8a9a000 > dock 11280 0 - Live 0xf8ab3000 > battery 14212 0 - Live 0xf8aae000 > iptable_filter 3840 0 - Live 0xf884e000 > ip_tables 14820 1 iptable_filter, Live 0xf8a9d000 > x_tables 16132 1 ip_tables, Live 0xf8a58000 > ac 6916 0 - Live 0xf8a62000 > parport_pc 36260 0 - Live 0xf8aa4000 > lp 12324 0 - Live 0xf8a5d000 > parport 37832 3 ppdev,parport_pc,lp, Live 0xf8a8c000 > loop 18948 0 - Live 0xf8a3d000 > af_packet 23812 4 - Live 0xf8a85000 > ipv6 267780 64 - Live 0xf8b37000 > usbhid 31872 0 - Live 0xf8a7c000 > hid 38784 1 usbhid, Live 0xf8a71000 > usblp 15872 0 - Live 0xf89f2000 > evdev 13056 4 - Live 0xf8a2b000 > snd_hda_intel 344728 5 - Live 0xf8ae1000 > snd_pcm_oss 42144 0 - Live 0xf8a65000 > snd_mixer_oss 17920 1 snd_pcm_oss, Live 0xf8a32000 > snd_pcm 78596 2 snd_hda_intel,snd_pcm_oss, Live 0xf8a43000 > snd_page_alloc 11400 2 snd_hda_intel,snd_pcm, Live 0xf89fb000 > snd_hwdep 10500 1 snd_hda_intel, Live 0xf89f7000 > snd_seq_dummy 4868 0 - Live 0xf89dc000 > snd_seq_oss 35584 0 - Live 0xf8a21000 > snd_seq_midi 9376 0 - Live 0xf89e0000 > amd64_agp 13444 0 - Live 0xf89ed000 > snd_rawmidi 25760 1 snd_seq_midi, Live 0xf89e5000 > via_agp 11136 1 - Live 0xf8983000 > button 9232 0 - Live 0xf89d3000 > snd_seq_midi_event 8320 2 snd_seq_oss,snd_seq_midi, Live 0xf8987000 > pcspkr 4224 0 - Live 0xf8980000 > shpchp 34452 0 - Live 0xf89c9000 > pci_hotplug 30880 1 shpchp, Live 0xf896f000 > agpgart 34760 3 drm,amd64_agp,via_agp, Live 0xf898c000 > snd_seq 54224 7 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event, > Live 0xf89ba000 snd_timer 24836 3 snd_rtctimer,snd_pcm,snd_seq, Live > 0xf8978000 > snd_seq_device 9612 5 > snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq, Live 0xf8847000 > snd 56996 23 > snd_rtctimer,snd_hda_intel,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_hwdep,snd_ >seq_dummy,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device, Live > 0xf8952000 soundcore 8800 1 snd, Live 0xf893a000 > k8temp 6656 0 - Live 0xf889b000 > ext3 136712 1 - Live 0xf8997000 > jbd 48404 1 ext3, Live 0xf8962000 > mbcache 9600 1 ext3, Live 0xf882b000 > sr_mod 17956 0 - Live 0xf8941000 > cdrom 37408 1 sr_mod, Live 0xf8947000 > sg 36880 0 - Live 0xf8926000 > sd_mod 30720 3 - Live 0xf8931000 > pata_acpi 8320 0 - Live 0xf889f000 > pata_via 13316 0 - Live 0xf8921000 > ata_generic 8324 0 - Live 0xf8878000 > r8169 32900 0 - Live 0xf8917000 > uhci_hcd 27024 0 - Live 0xf8893000 > via_rhine 26632 0 - Live 0xf888b000 > mii 6400 1 via_rhine, Live 0xf884b000 > ehci_hcd 37900 0 - Live 0xf8880000 > usbcore 146028 5 usbhid,usblp,uhci_hcd,ehci_hcd, Live 0xf88f2000 > sata_via 12420 2 - Live 0xf8862000 > libata 159344 4 pata_acpi,pata_via,ata_generic,sata_via, Live 0xf88ca000 > scsi_mod 151436 4 sr_mod,sg,sd_mod,libata, Live 0xf88a4000 > thermal 16796 0 - Live 0xf885c000 > processor 36872 1 thermal, Live 0xf8869000 > fan 5636 0 - Live 0xf8844000 > fbcon 42912 0 - Live 0xf8850000 > tileblit 3456 1 fbcon, Live 0xf8833000 > font 9472 1 fbcon, Live 0xf882f000 > bitblit 6784 1 fbcon, Live 0xf8826000 > softcursor 3072 1 bitblit, Live 0xf8829000 > fuse 50708 19 - Live 0xf8836000 > mrc at Ada:/proc$ From balmquist at mindfirestudios.com Sat Sep 6 02:55:27 2008 From: balmquist at mindfirestudios.com (Almquist Burke) Date: Fri, 5 Sep 2008 21:55:27 -0500 Subject: [K12OSN] LTSP Lab Slow to Boot In-Reply-To: References: <20080905160038.DEC2A8E0F01@hormel.redhat.com> Message-ID: -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Sep 5, 2008, at 11:52 AM, Crampton, Stephen C. wrote: > > From: "Crampton, Stephen C." > Date: September 5, 2008 11:52:40 AM CDT > To: > Subject: LTSP Lab Slow to Boot > > > My LTSP clients take a long time to boot. Some of the first ones > boot in about a minute, but after about 8 or 9 are up, the others > keep saying "No DHCP Offers Received." If I leave them long > enough, they eventually all boot. > > Another clue: It takes over a minute for the first sudo command to > accept the root password. > Just curious, what kind of hard drive setup are you using?? -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (Darwin) iEYEARECAAYFAkjB8R8ACgkQxWV7OPa/g5GtUwCePAmwdSh7qoX/IG9fT+ZG9oOP 59gAn1XdYw47HbhX0PCojZjPk7ROpg8/ =ND4r -----END PGP SIGNATURE----- From moon at smbis.com Sat Sep 6 05:20:45 2008 From: moon at smbis.com (Moon) Date: Sat, 6 Sep 2008 01:20:45 -0400 Subject: [K12OSN] LTSP Lab Slow to Boot In-Reply-To: References: <20080905160038.DEC2A8E0F01@hormel.redhat.com> Message-ID: <273E5FE24F52475E91BDCD09B13E4D93@acerpc> Warren, here is another person that is having the same problems I had with Edubuntu 8.04.1. Note that the same issues with the DHCP server; not working or working very slowly. Burke, I wish I had an answer for you. I tried for several weeks to get this same issue resolved on the Ubuntu forums with no luck. In my opinion, the Edubuntu support is very limited at best. Ubuntu/Edubuntu also has video and networking issues that you will sooner or later encounter. A quick Google will confirm the video issues. These are all directly related to the design of this distribution. Ubuntu needs to spend less time trying to be the next Mac or Windows and try making their distribution reliable, stable, and usable. I switched to the K12LTSP EL5 and have had no problems with performance or reliability. Red Hat is a much more reliable and stable platform. Bleeding edge is for those that have a lot of time and like to play with new stuff. I recommend you make that move soon too, before you waste a lot of time as I did on trying to work through bugs that the vendor doesn't have time or interest in fixing... -----Original Message----- From: Almquist Burke [mailto:balmquist at mindfirestudios.com] Sent: Friday, September 05, 2008 10:55 PM To: Support list for open source software in schools. Subject: Re: [K12OSN] LTSP Lab Slow to Boot -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Sep 5, 2008, at 11:52 AM, Crampton, Stephen C. wrote: > > From: "Crampton, Stephen C." > Date: September 5, 2008 11:52:40 AM CDT > To: > Subject: LTSP Lab Slow to Boot > > > My LTSP clients take a long time to boot. Some of the first ones > boot in about a minute, but after about 8 or 9 are up, the others > keep saying "No DHCP Offers Received." If I leave them long > enough, they eventually all boot. > > Another clue: It takes over a minute for the first sudo command to > accept the root password. > Just curious, what kind of hard drive setup are you using?? -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (Darwin) iEYEARECAAYFAkjB8R8ACgkQxWV7OPa/g5GtUwCePAmwdSh7qoX/IG9fT+ZG9oOP 59gAn1XdYw47HbhX0PCojZjPk7ROpg8/ =ND4r -----END PGP SIGNATURE----- _______________________________________________ K12OSN mailing list K12OSN at redhat.com https://www.redhat.com/mailman/listinfo/k12osn For more info see From: Crampton, Stephen C. [cramptons at duvalschools.org] Sent: Friday, September 05, 2008 12:53 PM To: k12osn at redhat.com Subject: LTSP Lab Slow to Boot My LTSP clients take a long time to boot. Some of the first ones boot in about a minute, but after about 8 or 9 are up, the others keep saying "No DHCP Offers Received." If I leave them long enough, they eventually all boot. Another clue: It takes over a minute for the first sudo command to accept the root password. Could someone please give me some suggestions? Here's what I can tell you about the setup. Edubuntu 8.04 SWITCH SMC TigerSwitch 10/100 6128L2 CLIENTS Lenovo machines with Intel processors SERVER mrc at Ada:/proc$ cat cpuinfo processor : 0 vendor_id : AuthenticAMD cpu family : 15 model : 107 model name : AMD Athlon(tm) 64 X2 Dual Core Processor 4000+ stepping : 1 cpu MHz : 2101.332 cache size : 512 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 2 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt rdtscp lm 3dnowext 3dnow pni cx16 lahf_lm cmp_legacy svm extapic cr8_legacy 3dnowprefetch ts fid vid ttp tm stc 100mhzsteps bogomips : 4205.03 clflush size : 64 processor : 1 vendor_id : AuthenticAMD cpu family : 15 model : 107 model name : AMD Athlon(tm) 64 X2 Dual Core Processor 4000+ stepping : 1 cpu MHz : 2101.332 cache size : 512 KB physical id : 0 siblings : 2 core id : 1 cpu cores : 2 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt rdtscp lm 3dnowext 3dnow pni cx16 lahf_lm cmp_legacy svm extapic cr8_legacy 3dnowprefetch ts fid vid ttp tm stc 100mhzsteps bogomips : 4202.52 clflush size : 64 mrc at Ada:/proc$ ifconfig eth0 Link encap:Ethernet HWaddr 00:18:f8:0b:40:0d inet addr:192.168.0.254 Bcast:192.168.0.255 Mask:255.255.255.0 inet6 addr: fe80::218:f8ff:fe0b:400d/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:253305 errors:0 dropped:0 overruns:0 frame:0 TX packets:309896 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:46515129 (44.3 MB) TX bytes:301639706 (287.6 MB) Interrupt:20 Base address:0xcc00 eth1 Link encap:Ethernet HWaddr 00:1d:60:b7:ad:a7 inet addr:169.157.241.64 Bcast:169.157.241.255 Mask:255.255.255.0 inet6 addr: fe80::21d:60ff:feb7:ada7/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:8010 errors:0 dropped:0 overruns:0 frame:0 TX packets:1607 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:1006100 (982.5 KB) TX bytes:205995 (201.1 KB) Interrupt:19 Base address:0x4800 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:1063 errors:0 dropped:0 overruns:0 frame:0 TX packets:1063 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:56736 (55.4 KB) TX bytes:56736 (55.4 KB) mrc at Ada:/proc$ cat loadavg 0.09 0.14 0.06 4/626 16166 mrc at Ada:/proc$ cat meminfo MemTotal: 3107580 kB MemFree: 1828200 kB Buffers: 27004 kB Cached: 418752 kB SwapCached: 0 kB Active: 894940 kB Inactive: 274108 kB HighTotal: 2227904 kB HighFree: 1065644 kB LowTotal: 879676 kB LowFree: 762556 kB SwapTotal: 9100780 kB SwapFree: 9100780 kB Dirty: 48 kB Writeback: 0 kB AnonPages: 723452 kB Mapped: 71072 kB Slab: 37780 kB SReclaimable: 17272 kB SUnreclaim: 20508 kB PageTables: 10208 kB NFS_Unstable: 0 kB Bounce: 0 kB CommitLimit: 10654568 kB Committed_AS: 2302184 kB VmallocTotal: 114680 kB VmallocUsed: 8420 kB VmallocChunk: 106148 kB mrc at Ada:/proc$ mrc at Ada:/proc$ cat modules snd_rtctimer 4640 1 - Live 0xf8fff000 binfmt_misc 12808 1 - Live 0xf9040000 via 43648 2 - Live 0xf9010000 drm 82452 3 via, Live 0xf902a000 rfcomm 41744 2 - Live 0xf9004000 l2cap 25728 13 rfcomm, Live 0xf8fdb000 bluetooth 61156 4 rfcomm,l2cap, Live 0xf8fe6000 ppdev 10372 0 - Live 0xf8add000 cpufreq_stats 7104 0 - Live 0xf8ab7000 cpufreq_powersave 2688 0 - Live 0xf8867000 cpufreq_conservative 8712 0 - Live 0xf8ad9000 cpufreq_userspace 5284 0 - Live 0xf8ac5000 cpufreq_ondemand 9740 0 - Live 0xf8ad0000 freq_table 5536 2 cpufreq_stats,cpufreq_ondemand, Live 0xf8ac2000 video 19856 0 - Live 0xf8aca000 output 4736 1 video, Live 0xf8aba000 sbs 15112 0 - Live 0xf8abd000 sbshc 7680 1 sbs, Live 0xf8a97000 container 5632 0 - Live 0xf8a9a000 dock 11280 0 - Live 0xf8ab3000 battery 14212 0 - Live 0xf8aae000 iptable_filter 3840 0 - Live 0xf884e000 ip_tables 14820 1 iptable_filter, Live 0xf8a9d000 x_tables 16132 1 ip_tables, Live 0xf8a58000 ac 6916 0 - Live 0xf8a62000 parport_pc 36260 0 - Live 0xf8aa4000 lp 12324 0 - Live 0xf8a5d000 parport 37832 3 ppdev,parport_pc,lp, Live 0xf8a8c000 loop 18948 0 - Live 0xf8a3d000 af_packet 23812 4 - Live 0xf8a85000 ipv6 267780 64 - Live 0xf8b37000 usbhid 31872 0 - Live 0xf8a7c000 hid 38784 1 usbhid, Live 0xf8a71000 usblp 15872 0 - Live 0xf89f2000 evdev 13056 4 - Live 0xf8a2b000 snd_hda_intel 344728 5 - Live 0xf8ae1000 snd_pcm_oss 42144 0 - Live 0xf8a65000 snd_mixer_oss 17920 1 snd_pcm_oss, Live 0xf8a32000 snd_pcm 78596 2 snd_hda_intel,snd_pcm_oss, Live 0xf8a43000 snd_page_alloc 11400 2 snd_hda_intel,snd_pcm, Live 0xf89fb000 snd_hwdep 10500 1 snd_hda_intel, Live 0xf89f7000 snd_seq_dummy 4868 0 - Live 0xf89dc000 snd_seq_oss 35584 0 - Live 0xf8a21000 snd_seq_midi 9376 0 - Live 0xf89e0000 amd64_agp 13444 0 - Live 0xf89ed000 snd_rawmidi 25760 1 snd_seq_midi, Live 0xf89e5000 via_agp 11136 1 - Live 0xf8983000 button 9232 0 - Live 0xf89d3000 snd_seq_midi_event 8320 2 snd_seq_oss,snd_seq_midi, Live 0xf8987000 pcspkr 4224 0 - Live 0xf8980000 shpchp 34452 0 - Live 0xf89c9000 pci_hotplug 30880 1 shpchp, Live 0xf896f000 agpgart 34760 3 drm,amd64_agp,via_agp, Live 0xf898c000 snd_seq 54224 7 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event, Live 0xf89ba000 snd_timer 24836 3 snd_rtctimer,snd_pcm,snd_seq, Live 0xf8978000 snd_seq_device 9612 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq, Live 0xf8847000 snd 56996 23 snd_rtctimer,snd_hda_intel,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_hwdep,snd_s eq_dummy,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device, Live 0xf8952000 soundcore 8800 1 snd, Live 0xf893a000 k8temp 6656 0 - Live 0xf889b000 ext3 136712 1 - Live 0xf8997000 jbd 48404 1 ext3, Live 0xf8962000 mbcache 9600 1 ext3, Live 0xf882b000 sr_mod 17956 0 - Live 0xf8941000 cdrom 37408 1 sr_mod, Live 0xf8947000 sg 36880 0 - Live 0xf8926000 sd_mod 30720 3 - Live 0xf8931000 pata_acpi 8320 0 - Live 0xf889f000 pata_via 13316 0 - Live 0xf8921000 ata_generic 8324 0 - Live 0xf8878000 r8169 32900 0 - Live 0xf8917000 uhci_hcd 27024 0 - Live 0xf8893000 via_rhine 26632 0 - Live 0xf888b000 mii 6400 1 via_rhine, Live 0xf884b000 ehci_hcd 37900 0 - Live 0xf8880000 usbcore 146028 5 usbhid,usblp,uhci_hcd,ehci_hcd, Live 0xf88f2000 sata_via 12420 2 - Live 0xf8862000 libata 159344 4 pata_acpi,pata_via,ata_generic,sata_via, Live 0xf88ca000 scsi_mod 151436 4 sr_mod,sg,sd_mod,libata, Live 0xf88a4000 thermal 16796 0 - Live 0xf885c000 processor 36872 1 thermal, Live 0xf8869000 fan 5636 0 - Live 0xf8844000 fbcon 42912 0 - Live 0xf8850000 tileblit 3456 1 fbcon, Live 0xf8833000 font 9472 1 fbcon, Live 0xf882f000 bitblit 6784 1 fbcon, Live 0xf8826000 softcursor 3072 1 bitblit, Live 0xf8829000 fuse 50708 19 - Live 0xf8836000 mrc at Ada:/proc$ From warren at togami.com Sat Sep 6 05:47:28 2008 From: warren at togami.com (Warren Togami) Date: Sat, 06 Sep 2008 01:47:28 -0400 Subject: [K12OSN] LTSP Lab Slow to Boot In-Reply-To: <273E5FE24F52475E91BDCD09B13E4D93@acerpc> References: <20080905160038.DEC2A8E0F01@hormel.redhat.com> <273E5FE24F52475E91BDCD09B13E4D93@acerpc> Message-ID: <48C21970.50403@togami.com> Moon wrote: > Warren, here is another person that is having the same problems I had with > Edubuntu 8.04.1. Note that the same issues with the DHCP server; not working > or working very slowly. Quite frankly, I don't care if someone has a problem on Edubuntu. It is like complaining to the Toyota dealer about a problem with your Chevrolet. I do want to know if you have the same problem on K12LTSP or K12Linux though. Warren Togami wtogami at redhat.com From moon at smbis.com Sat Sep 6 05:59:56 2008 From: moon at smbis.com (Moon) Date: Sat, 6 Sep 2008 01:59:56 -0400 Subject: [K12OSN] LTSP Lab Slow to Boot In-Reply-To: <48C21970.50403@togami.com> References: <20080905160038.DEC2A8E0F01@hormel.redhat.com> <273E5FE24F52475E91BDCD09B13E4D93@acerpc> <48C21970.50403@togami.com> Message-ID: Amen to that... -----Original Message----- From: Warren Togami [mailto:warren at togami.com] Sent: Saturday, September 06, 2008 01:47 AM To: moon at smbis.com; Support list for open source software in schools. Subject: Re: [K12OSN] LTSP Lab Slow to Boot Moon wrote: > Warren, here is another person that is having the same problems I had with > Edubuntu 8.04.1. Note that the same issues with the DHCP server; not working > or working very slowly. Quite frankly, I don't care if someone has a problem on Edubuntu. It is like complaining to the Toyota dealer about a problem with your Chevrolet. I do want to know if you have the same problem on K12LTSP or K12Linux though. Warren Togami wtogami at redhat.com From asmo.koskinen at arkki.info Sat Sep 6 07:30:29 2008 From: asmo.koskinen at arkki.info (Asmo Koskinen) Date: Sat, 06 Sep 2008 10:30:29 +0300 Subject: [K12OSN] LTSP Lab Slow to Boot In-Reply-To: <48C21970.50403@togami.com> References: <20080905160038.DEC2A8E0F01@hormel.redhat.com> <273E5FE24F52475E91BDCD09B13E4D93@acerpc> <48C21970.50403@togami.com> Message-ID: <48C23195.50202@arkki.info> Warren Togami kirjoitti: > Quite frankly, I don't care if someone has a problem on Edubuntu. Do you care about LTSP5? Best Regards Asmo Koskinen. From dvanassche at gmail.com Sat Sep 6 07:58:58 2008 From: dvanassche at gmail.com (David Van Assche) Date: Sat, 6 Sep 2008 09:58:58 +0200 Subject: [K12OSN] LTSP Lab Slow to Boot In-Reply-To: <48C23195.50202@arkki.info> References: <20080905160038.DEC2A8E0F01@hormel.redhat.com> <273E5FE24F52475E91BDCD09B13E4D93@acerpc> <48C21970.50403@togami.com> <48C23195.50202@arkki.info> Message-ID: <8cc423ef0809060058jd5c0453w979c68722a4810b6@mail.gmail.com> Seems to me that LTSP is LTSP, and this has nothing to do with it being Fedora or Ubuntu... I have run both versions and I see the same problems in both, and for that matter in Suse too... But I guess Warren is rerferring to talking crap about another distro, which is in no way helpful or even accurate. Until recently, Ubuntu had the most developed LTSP system by far... and Fedora enjoys some of the fruits of that creation. Yes, you are running ubuntu code, coded by ubuntu devs when you run LTSP 5, gasp... David Van Assche On Sat, Sep 6, 2008 at 9:30 AM, Asmo Koskinen wrote: > Warren Togami kirjoitti: > >> Quite frankly, I don't care if someone has a problem on Edubuntu. > > Do you care about LTSP5? > > Best Regards Asmo Koskinen. > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > From microman at cmosnetworks.com Sat Sep 6 07:34:42 2008 From: microman at cmosnetworks.com (Terrell Prude' Jr.) Date: Sat, 6 Sep 2008 03:34:42 -0400 Subject: [K12OSN] LTSP Lab Slow to Boot In-Reply-To: <48C23195.50202@arkki.info> References: <20080905160038.DEC2A8E0F01@hormel.redhat.com> <48C21970.50403@togami.com> <48C23195.50202@arkki.info> Message-ID: <200809060334.42770.microman@cmosnetworks.com> On Saturday 06 September 2008 03:30, Asmo Koskinen wrote: > Warren Togami kirjoitti: > > Quite frankly, I don't care if someone has a problem on Edubuntu. > > Do you care about LTSP5? > > Best Regards Asmo Koskinen. Umm...yeah, he does. He's doing the lion's share of the LTSP 5 work in the latest versions of K12LTSP--soon to be called K12Linux. --TP From microman at cmosnetworks.com Sat Sep 6 07:33:34 2008 From: microman at cmosnetworks.com (Terrell Prude' Jr.) Date: Sat, 6 Sep 2008 03:33:34 -0400 Subject: [K12OSN] LTSP Lab Slow to Boot In-Reply-To: <48C23195.50202@arkki.info> References: <20080905160038.DEC2A8E0F01@hormel.redhat.com> <48C21970.50403@togami.com> <48C23195.50202@arkki.info> Message-ID: <200809060333.34889.microman@cmosnetworks.com> On Saturday 06 September 2008 03:30, Asmo Koskinen wrote: > Warren Togami kirjoitti: > > Quite frankly, I don't care if someone has a problem on Edubuntu. > > Do you care about LTSP5? > > Best Regards Asmo Koskinen. Umm...yeah, he does. He's doing the lion's share of the work integrating LTSP 5 into not just Fedora 10, but also K12LTSP 6EL. --TP From nadavkav at gmail.com Sat Sep 6 09:13:51 2008 From: nadavkav at gmail.com (Nadav Kavalerchik) Date: Sat, 6 Sep 2008 12:13:51 +0300 Subject: [K12OSN] Force system wide manual proxy setting with Opera In-Reply-To: References: Message-ID: <4219988b0809060213v5978a09mf8e0f510bae00c13@mail.gmail.com> i use this too :-) and also a similar file for firefox "ltsp-in-schools.cfg" in firefox's main folder ... pref("network.proxy.http", "server.ltsp"); pref("network.proxy.http_port", 3128); pref("network.proxy.type",1); ... plus, the settings in $FIREFOX/default/pref/all.js (that loads it) pref('general.config.obscure_value', 0); pref('general.config.filename', 'ltsp-in-schools.cfg'); :-) On Fri, Sep 5, 2008 at 12:01 AM, Robert Arkiletian wrote: > I've been noticing people having problems forcing system wide settings > for manual proxy settings. If you use Opera here is my > > /etc/opera6rc.fixed > > file which sets preferences that CANNOT be changed by users. > > ================================ > ; Put any settings here that are not overridable by users > > [Disk Cache] > Enabled=0 > > [Extensions] > Plugins=1 > > [Sounds] > Enabled=0 > > [State] > Accept License=1 > > [Proxy] > HTTP Server=192.168.0.254:80 > Use HTTP=1 > > [User Prefs] > Startup Type=2 > Check For New Opera=0 > Accept Cookies Session Only=1 > Home URL=http://www.google.ca > =================================== > -- > Robert Arkiletian > Eric Hamber Secondary, Vancouver, Canada > Fl_TeacherTool http://www3.telus.net/public/robark/Fl_TeacherTool/ > C++ GUI tutorial http://www3.telus.net/public/robark/ > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > -------------- next part -------------- An HTML attachment was scrubbed... URL: From nadavkav at gmail.com Sat Sep 6 09:31:51 2008 From: nadavkav at gmail.com (Nadav Kavalerchik) Date: Sat, 6 Sep 2008 12:31:51 +0300 Subject: [K12OSN] Force system wide manual proxy setting with Opera In-Reply-To: <4219988b0809060213v5978a09mf8e0f510bae00c13@mail.gmail.com> References: <4219988b0809060213v5978a09mf8e0f510bae00c13@mail.gmail.com> Message-ID: <4219988b0809060231p667ffd68ya1d1f1627f5c1893@mail.gmail.com> here are some more notes i wrote to myself :-) setting system-wide user's configurations - ltsp.org/wiki (Firefox,Opera,OpenOffice) : http://wiki.ltsp.org/twiki/bin/view/Ltsp/ManagingUserConfiguration - Opera KioskMode : http://www.opera.com/support/mastering/kiosk/ - OpenOffice : (i copy a TemplateUser - Sandbox to all other users) - restrict UI functionality [ http://wiki.services.openoffice.org/wiki/Documentation/Administration_Guide/Restricting_functionality] - Firefox : - manipulate the user.js in main profile folder. (more info: http://www.mozilla.org/catalog/end-user/customizing/briefprefs.html ) - set pref for all users from a *single* firefox.cfg file ( http://mit.edu/~firefox/www/maintainers/autoconfig.html) - /usr/local/firefox_2_heb/bookmarks.html /usr/local/firefox_2_heb/ltsp-in-schools.cfg /usr/local/firefox_2_heb/defaults/pref/all.js - KDE (kiosktool) + - set UI language :: $profile/share/config/kdeglobals --> Language=he:ar:ru:en - set "File Open Association" :: $profile/student/share/config/profilerc (copy file from one profile to all others) On Sat, Sep 6, 2008 at 12:13 PM, Nadav Kavalerchik wrote: > i use this too :-) > > and also a similar file for firefox > "ltsp-in-schools.cfg" in firefox's main folder > ... > pref("network.proxy.http", "server.ltsp"); > pref("network.proxy.http_port", 3128); > pref("network.proxy.type",1); > ... > > plus, the settings in $FIREFOX/default/pref/all.js (that loads it) > pref('general.config.obscure_value', 0); > pref('general.config.filename', 'ltsp-in-schools.cfg'); > > :-) > > > On Fri, Sep 5, 2008 at 12:01 AM, Robert Arkiletian wrote: > >> I've been noticing people having problems forcing system wide settings >> for manual proxy settings. If you use Opera here is my >> >> /etc/opera6rc.fixed >> >> file which sets preferences that CANNOT be changed by users. >> >> ================================ >> ; Put any settings here that are not overridable by users >> >> [Disk Cache] >> Enabled=0 >> >> [Extensions] >> Plugins=1 >> >> [Sounds] >> Enabled=0 >> >> [State] >> Accept License=1 >> >> [Proxy] >> HTTP Server=192.168.0.254:80 >> Use HTTP=1 >> >> [User Prefs] >> Startup Type=2 >> Check For New Opera=0 >> Accept Cookies Session Only=1 >> Home URL=http://www.google.ca >> =================================== >> -- >> Robert Arkiletian >> Eric Hamber Secondary, Vancouver, Canada >> Fl_TeacherTool http://www3.telus.net/public/robark/Fl_TeacherTool/ >> C++ GUI tutorial http://www3.telus.net/public/robark/ >> >> _______________________________________________ >> K12OSN mailing list >> K12OSN at redhat.com >> https://www.redhat.com/mailman/listinfo/k12osn >> For more info see >> > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From SteveSings at gmail.com Sat Sep 6 17:04:43 2008 From: SteveSings at gmail.com (Stephen Crampton) Date: Sat, 6 Sep 2008 14:04:43 -0300 Subject: [K12OSN] Slow Booting LTSP Clients - K12LTSP5EL Message-ID: In response to the problems with slow DHCP under Edubuntu, I've decided to try and install the K12LTSP Centos 5EL. I'm using the same machine. I just switched hard drives (same make and model). I'm using the 6 install CDs (the install DVD would not burn on my system -- too big). The installation stops and says I do not have any hard drives. The BIOS recognizes the hard drive and indeed I can boot from it. The motherboard says M2V-MX SE on it. I searched around and found reference to a sata_via module. I tried adding the module through the Centos installation menu (where it says, "do you want to add any hardware modules?"). However, the installation still fails a few screens later (after I choose English language and keyboard and LTSP system). It says there is no hard drive again. Please help. I didn't mean to start flames between K12LTSP and Edubuntu. I'm just trying to get a working system. I have parents coming in on Monday night, so I'm working this weekend to try and iron out the problem. I would like them to come away saying, "Wow, this is cool. Why is the school district spending money on Windows software?" -------------- next part -------------- An HTML attachment was scrubbed... URL: From brcisna at eazylivin.net Sat Sep 6 17:11:07 2008 From: brcisna at eazylivin.net (Barry R Cisna) Date: Sat, 06 Sep 2008 12:11:07 -0500 Subject: [K12OSN] LTSP Lab Slow to Boot Message-ID: <1220721067.2617.8.camel@localhost.localdomain> Hi Steve, This is worth a shot. Try taking your SMC Managed switch out of the equation and put a cheapo, 8-port switch in it's place and see if your boot times for clients speed up. That switch may have STP,enabled or disabled,or some other underlying trick stuff that is choking tftp/dhcp and has you all jaberwokyed. If the clients take that long to boot up they will definitly be dogs in performance as well. Let us know what ya come up with. Take care, Barry Cisna From wtogami at redhat.com Sat Sep 6 17:21:31 2008 From: wtogami at redhat.com (Warren Togami) Date: Sat, 06 Sep 2008 13:21:31 -0400 Subject: [K12OSN] Slow Booting LTSP Clients - K12LTSP5EL In-Reply-To: References: Message-ID: <48C2BC1B.5020407@redhat.com> Stephen Crampton wrote: > In response to the problems with slow DHCP under Edubuntu, I've decided > to try and install the K12LTSP Centos 5EL. > > I'm using the same machine. I just switched hard drives (same make and > model). > > I'm using the 6 install CDs (the install DVD would not burn on my system > -- too big). > > The installation stops and says I do not have any hard drives. The BIOS > recognizes the hard drive and indeed I can boot from it. > > The motherboard says M2V-MX SE on it. I searched around and found > reference to a sata_via module. I tried adding the module through the > Centos installation menu (where it says, "do you want to add any > hardware modules?"). However, the installation still fails a few > screens later (after I choose English language and keyboard and LTSP > system). It says there is no hard drive again. > Have you tried flipping options in the BIOS related to the SATA. Some BIOS need to enable or disable "legacy" ATA in order to work properly with older kernels like CentOS 5. http://wtogami.livejournal.com/27610.html You might also want to try the Fedora LTSP5 Live USB. This is more likely to install without issues and booting. You could within minutes install and boot to serve thin clients. http://petre.homedns.org/f9-ltsp/draft3-jpg/ Latest draft of the setup instructions is here. https://www.redhat.com/archives/k12osn/2008-September/msg00068.html Unfortunately, if this is the same hardware as you describe here, as others point out you likely need gigabit ethernet and a gigabit ethernet uplink to your switch for this to be of any benefit. Warren Togami wtogami at redhat.com From brcisna at eazylivin.net Sat Sep 6 17:20:57 2008 From: brcisna at eazylivin.net (Barry R Cisna) Date: Sat, 06 Sep 2008 12:20:57 -0500 Subject: [K12OSN] k12ltsp OO2 - open docx,pptx,xlsx Message-ID: <1220721657.2617.16.camel@localhost.localdomain> Hello list, Just thought I'd throw this out for anyone wrangling at school with students bringing in docx, etc file from their new laptops,with MS $ Off that they had mom and pop spring for before school started:) A simple fix for OO2 to open docx,pptx,xlsx file is to download the odf-converter-integrator rpm that is available. This will enable your OO2 any version to easily open the new format files. Only caveat they will have to be saved in .doc format ,or whatever OO ext you'd like. They can not be resaved in .docx, in other words. Hope this helps. Take care, Barry Cisna From nils at breun.nl Sat Sep 6 17:31:26 2008 From: nils at breun.nl (Nils Breunese) Date: Sat, 6 Sep 2008 19:31:26 +0200 Subject: [K12OSN] k12ltsp OO2 - open docx,pptx,xlsx In-Reply-To: <1220721657.2617.16.camel@localhost.localdomain> References: <1220721657.2617.16.camel@localhost.localdomain> Message-ID: <0CAF1265-419E-409D-9489-17CB07623FC4@breun.nl> Barry R Cisna wrote: > Just thought I'd throw this out for anyone wrangling at school with > students bringing in docx, etc file from their new laptops,with MS $ > Off > that they had mom and pop spring for before school started:) A simple > fix for OO2 to open docx,pptx,xlsx file is to download the > odf-converter-integrator rpm that is available. This will enable your > OO2 any version to easily open the new format files. Only caveat they > will have to be saved in .doc format ,or whatever OO ext you'd like. > They can not be resaved in .docx, in other words. > Hope this helps. Cool, I didn't know about odf-converter-integrator. A link would have been handy though. I had to Google for it: http://katana.oooninja.com/w/odf-converter-integrator Nils Breunese. From SteveSings at gmail.com Sat Sep 6 17:38:10 2008 From: SteveSings at gmail.com (Stephen Crampton) Date: Sat, 6 Sep 2008 14:38:10 -0300 Subject: [K12OSN] Slow Booting LTSP Clients - K12LTSP5EL Message-ID: Just to confirm, I have a gigabit ethernet card in the server and I am using a switch with a gigabit uplink. -------------- next part -------------- An HTML attachment was scrubbed... URL: From brcisna at eazylivin.net Sat Sep 6 17:38:03 2008 From: brcisna at eazylivin.net (Barry R Cisna) Date: Sat, 06 Sep 2008 12:38:03 -0500 Subject: [K12OSN] ] k12ltsp OO2 - open docx,pptx,xlsx Message-ID: <1220722683.2617.26.camel@localhost.localdomain> Hi Nils, Sorry for not posting a direct link for the odf-converter-integrator rpm. Most people here like the "challenge" of Googleing their eyes out anyways. I had a very close rpm with the available odf-converter from the Novell site,as after a lot of red eyeballs, trying to make it work it would too open docx,pptx,xlsx file as well and looked like saved correctly in .docx format but in reality would not open in MS $ Office after being saved. Anyway this works very slick. Once installed you simply do a RIGHT click on the .docx file and "open with" odf-converter-integrator.( This will not put an "Open with .docx" in the actual OO2 program.) Take Care, Barry Cisna From wtogami at redhat.com Sat Sep 6 17:44:21 2008 From: wtogami at redhat.com (Warren Togami) Date: Sat, 06 Sep 2008 13:44:21 -0400 Subject: [K12OSN] Slow Booting LTSP Clients - K12LTSP5EL In-Reply-To: References: Message-ID: <48C2C175.9080300@redhat.com> Stephen Crampton wrote: > Just to confirm, I have a gigabit ethernet card in the server and I am > using a switch with a gigabit uplink. OK, but this still hasn't ruled out a networking hardware problem. Warren From dtrask at vcsvikings.org Sat Sep 6 19:01:05 2008 From: dtrask at vcsvikings.org (David Trask) Date: Sat, 06 Sep 2008 15:01:05 -0400 Subject: [K12OSN] Let me know about Open Source use at your school! Message-ID: Open Source in Schools Around the World I'm going to be presenting at several open source in education conferences throughout the next year. One topic I'd love to share with others is the extent of open source use in classrooms all over the world. If I may, I'd like to ask if you can contribute your own story to the vast pool of experiences from classrooms and schools around the world. I'm interested in learning about all uses of open source software in schools whether it's Linux or simply open source applications being used on any operating system (Linux, Mac OS X, or Windows). I will NOT publish your story unless you give me permission (see one of the last questions)....and I will NEVER share your email address or anything unless you ASK me to. Thanks for taking the time to let me know about how Free and Open Source Software is making a difference at your school! [ http://spreadsheets.google.com/viewform?key=pE6J52amam9v1Zk_1uOTFZw ]Go HERE to tell me all about it! or paste this ( http://spreadsheets.google.com/viewform?key=pE6J52amam9v1Zk_1uOTFZw ) in your web browser David N. Trask Technology Teacher/Director Vassalboro Community School dtrask at vcsvikings.org (207)923-3100 From lesmikesell at gmail.com Sat Sep 6 19:02:21 2008 From: lesmikesell at gmail.com (Les Mikesell) Date: Sat, 06 Sep 2008 14:02:21 -0500 Subject: [K12OSN] Slow Booting LTSP Clients - K12LTSP5EL In-Reply-To: References: Message-ID: <48C2D3BD.7020206@gmail.com> Stephen Crampton wrote: > In response to the problems with slow DHCP under Edubuntu, I've decided to > try and install the K12LTSP Centos 5EL. > > I'm using the same machine. I just switched hard drives (same make and > model). > > I'm using the 6 install CDs (the install DVD would not burn on my system -- > too big). > > The installation stops and says I do not have any hard drives. The BIOS > recognizes the hard drive and indeed I can boot from it. > > The motherboard says M2V-MX SE on it. I searched around and found reference > to a sata_via module. I tried adding the module through the Centos > installation menu (where it says, "do you want to add any hardware > modules?"). However, the installation still fails a few screens later > (after I choose English language and keyboard and LTSP system). It says > there is no hard drive again. > > Please help. I didn't mean to start flames between K12LTSP and Edubuntu. > I'm just trying to get a working system. I have parents coming in on Monday > night, so I'm working this weekend to try and iron out the problem. I would > like them to come away saying, "Wow, this is cool. Why is the school > district spending money on Windows software?" The quick fix would be to toss in a different SATA card if you have one sitting around, but it might be worth trying 'linux noapm noacpi'at the install disk's boot prompt. https://www.centos.org/modules/newbb/viewtopic.php?viewmode=flat&order=ASC&topic_id=8588&forum=39&move=prev&topic_time=1179877975 indicates there was a bug in power management with that module - not sure if if would affect installs. This may be fixed in updates, so if you do get the install to work, do a 'yum update' to get the latest. However, if your problem really has to do with concurrent network activity below what you'd expect to be a problem I doubt if the OS or distribution is the cause. I'd concentrate first on the shared parts of the network - which may just be your uplink port and the gig port of the switch. Use ethtool to check that the speed/duplex settings are correct on the linux side and the switch management tools to see that it matches and that you are not getting errors. -- Les Mikesell lesmikesell at gmail.com From moon at smbis.com Sat Sep 6 22:05:29 2008 From: moon at smbis.com (Moon) Date: Sat, 6 Sep 2008 18:05:29 -0400 Subject: [K12OSN] Slow Booting LTSP Clients - K12LTSP5EL In-Reply-To: References: Message-ID: <7CA64AF3C7784EEA94774E4412C15ADC@acerpc> Stephen, I ran into a similar problem on an ABIT AMD board with the Phoenix AwardBIOS when installing K12LTSP EL5. What I had to do was first set my BIOS boot order (under Advanced BIOS Features - on my system) to SATA 1,2 , SCSI. Then I had to set the VIA OnChip IDE Device (under Integrated Peripherals - on my system) Onboard SATA 1,2 to Enabled and SATA Mode to RAID, although I only have one drive installed. This allowed K12LTSP EL5 to see the SATA drive on my system. Hope this helps. If you have any other questions about my BIOS settings let me know. Charlie _____ From: Stephen Crampton [mailto:SteveSings at gmail.com] Sent: Saturday, September 06, 2008 01:05 PM To: k12osn at redhat.com Subject: [K12OSN] Slow Booting LTSP Clients - K12LTSP5EL In response to the problems with slow DHCP under Edubuntu, I've decided to try and install the K12LTSP Centos 5EL. I'm using the same machine. I just switched hard drives (same make and model). I'm using the 6 install CDs (the install DVD would not burn on my system -- too big). The installation stops and says I do not have any hard drives. The BIOS recognizes the hard drive and indeed I can boot from it. The motherboard says M2V-MX SE on it. I searched around and found reference to a sata_via module. I tried adding the module through the Centos installation menu (where it says, "do you want to add any hardware modules?"). However, the installation still fails a few screens later (after I choose English language and keyboard and LTSP system). It says there is no hard drive again. Please help. I didn't mean to start flames between K12LTSP and Edubuntu. I'm just trying to get a working system. I have parents coming in on Monday night, so I'm working this weekend to try and iron out the problem. I would like them to come away saying, "Wow, this is cool. Why is the school district spending money on Windows software?" No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.169 / Virus Database: 270.6.17/1655 - Release Date: 09/05/2008 07:05 PM -------------- next part -------------- An HTML attachment was scrubbed... URL: From moon at smbis.com Sun Sep 7 02:44:13 2008 From: moon at smbis.com (Moon) Date: Sat, 6 Sep 2008 22:44:13 -0400 Subject: [K12OSN] Slow Booting LTSP Clients - K12LTSP5EL In-Reply-To: <7CA64AF3C7784EEA94774E4412C15ADC@acerpc> References: <7CA64AF3C7784EEA94774E4412C15ADC@acerpc> Message-ID: <0CF0A0319E884A21BD78BE742179BACA@acerpc> Stephen, I just looked up your BIOS settings for you main board, ASUS M2V-MX SE. On your system, you will probably need to set the SATA Controller to RAID. To do this; enter BIOS setup -> Select Advanced Tab -> Select Chipset -> Select Southbridge VIA VT8237S Configuration -> Select SATA Controller -> Select RAID, see page 2-26 of the BIOS section of the manual. Also, according to the manual, the SATA device is automatically detected, and since you noted that the system did detect the SATA drive, the only setting that you should have to set is the one above. Hope this helps. Charlie _____ From: Moon [mailto:moon at smbis.com] Sent: Saturday, September 06, 2008 06:05 PM To: 'Support list for open source software in schools.' Subject: RE: [K12OSN] Slow Booting LTSP Clients - K12LTSP5EL Stephen, I ran into a similar problem on an ABIT AMD board with the Phoenix AwardBIOS when installing K12LTSP EL5. What I had to do was first set my BIOS boot order (under Advanced BIOS Features - on my system) to SATA 1,2 , SCSI. Then I had to set the VIA OnChip IDE Device (under Integrated Peripherals - on my system) Onboard SATA 1,2 to Enabled and SATA Mode to RAID, although I only have one drive installed. This allowed K12LTSP EL5 to see the SATA drive on my system. Hope this helps. If you have any other questions about my BIOS settings let me know. Charlie _____ From: Stephen Crampton [mailto:SteveSings at gmail.com] Sent: Saturday, September 06, 2008 01:05 PM To: k12osn at redhat.com Subject: [K12OSN] Slow Booting LTSP Clients - K12LTSP5EL In response to the problems with slow DHCP under Edubuntu, I've decided to try and install the K12LTSP Centos 5EL. I'm using the same machine. I just switched hard drives (same make and model). I'm using the 6 install CDs (the install DVD would not burn on my system -- too big). The installation stops and says I do not have any hard drives. The BIOS recognizes the hard drive and indeed I can boot from it. The motherboard says M2V-MX SE on it. I searched around and found reference to a sata_via module. I tried adding the module through the Centos installation menu (where it says, "do you want to add any hardware modules?"). However, the installation still fails a few screens later (after I choose English language and keyboard and LTSP system). It says there is no hard drive again. Please help. I didn't mean to start flames between K12LTSP and Edubuntu. I'm just trying to get a working system. I have parents coming in on Monday night, so I'm working this weekend to try and iron out the problem. I would like them to come away saying, "Wow, this is cool. Why is the school district spending money on Windows software?" No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.169 / Virus Database: 270.6.17/1655 - Release Date: 09/05/2008 07:05 PM No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.169 / Virus Database: 270.6.17/1655 - Release Date: 09/05/2008 07:05 PM -------------- next part -------------- An HTML attachment was scrubbed... URL: From SteveSings at gmail.com Sun Sep 7 14:04:38 2008 From: SteveSings at gmail.com (Stephen Crampton) Date: Sun, 7 Sep 2008 10:04:38 -0400 Subject: [K12OSN] Slow Booting LTSP Clients - K12LTSP5EL Message-ID: Charlie, Thanks so much for your advice. Actually, I already tried that, but then a message came up saying RAID not detected or something to that effect during the bootstrap procedure. Right now I have two hard drives connected to the motherboard. I was planning to install different versions of Linux with LTSP on each one, so I could see what was going to work. Right now, I'm reinstalling ubuntu, which at least seems to be happy with all of my hardware. I tried to switch my network hardware around, by reassigning eth0 and eth1 in /etc/udev/ ... persistent-net-rules. This time I am going to leave the default configuration as is. This means, unfortunately, that eth0, which will be serving LTSP, will only be 100 Mbps. I may try unhooking the ubuntu drive from the motherboard and then trying your suggestion to install K12LTSP. At this point I have a big stack of install CDs that I downloaded from the web; none of them have worked so far, except for ubuntu. Thanks again, Steve Crampton -------------- next part -------------- An HTML attachment was scrubbed... URL: From SteveSings at gmail.com Sun Sep 7 14:42:33 2008 From: SteveSings at gmail.com (Stephen Crampton) Date: Sun, 7 Sep 2008 10:42:33 -0400 Subject: [K12OSN] eth0 and eth1 Message-ID: Could someone please explain how an LTSP system decides how to use eth0 and eth1? For instance, if I pull up firefox and type in cnn.com, over which interface does my request go out? Which interface is serving DHCP and TFTP requests? /etc/ltsp/dhcpd.conf doesn't seem to provide the answer. The DHCP script under /etc/init.d refers to a variable $INTERFACES, but I cannot figure out where that variable is initialized. I'm assuming that, in the default case, firefox sends requests over both interfaces, but dhcpd only uses eth0. But how do I determine whether this is true or not for my system? I'm using Edubuntu 8.04 again, because none of the K12LTSP install discs recognize my SATA hard drives (I tried 5SEL, 6SEL, and a beta live version). -------------- next part -------------- An HTML attachment was scrubbed... URL: From nils at breun.nl Sun Sep 7 14:54:42 2008 From: nils at breun.nl (Nils Breunese) Date: Sun, 7 Sep 2008 16:54:42 +0200 Subject: [K12OSN] eth0 and eth1 In-Reply-To: References: Message-ID: <95428437-01A7-478A-BEBC-9AA7587D0EC4@breun.nl> Stephen Crampton wrote: > Could someone please explain how an LTSP system decides how to use > eth0 and eth1? The same as any Linux system: by using the route table. > For instance, if I pull up firefox and type in cnn.com, over which > interface does my request go out? That depends on your routing table. See the output of the 'route' command. > Which interface is serving DHCP and TFTP requests? On K12LTSP it is eth0, I guess Edubuntu is simila. > /etc/ltsp/dhcpd.conf doesn't seem to provide the answer. The DHCP > script under /etc/init.d refers to a variable $INTERFACES, but I > cannot figure out where that variable is initialized. > > I'm assuming that, in the default case, firefox sends requests over > both interfaces, but dhcpd only uses eth0. But how do I determine > whether this is true or not for my system? Read up on TCP/IP routing. Individual applications (e.g. Firefox) don't decide this. Nils Breunese. From microman at cmosnetworks.com Sun Sep 7 15:12:12 2008 From: microman at cmosnetworks.com (Terrell Prude' Jr.) Date: Sun, 7 Sep 2008 11:12:12 -0400 Subject: [K12OSN] eth0 and eth1 In-Reply-To: References: Message-ID: <200809071112.13412.microman@cmosnetworks.com> On Sunday 07 September 2008 10:42, Stephen Crampton wrote: > Could someone please explain how an LTSP system decides how to use eth0 and > eth1? > > For instance, if I pull up firefox and type in cnn.com, over which > interface does my request go out? > > Which interface is serving DHCP and TFTP requests? > > /etc/ltsp/dhcpd.conf doesn't seem to provide the answer. The DHCP script > under /etc/init.d refers to a variable $INTERFACES, but I cannot figure out > where that variable is initialized. > > I'm assuming that, in the default case, firefox sends requests over both > interfaces, but dhcpd only uses eth0. But how do I determine whether this > is true or not for my system? > > I'm using Edubuntu 8.04 again, because none of the K12LTSP install discs > recognize my SATA hard drives (I tried 5SEL, 6SEL, and a beta live > version). That's done by the kernel. Whichever kernel module gets loaded first becomes eth0. I had an issue with my Slackware systems flipping eth0 and eth1 between the wired and wireless NIC's at nearly every reboot until I figured out how to force the issue. It's done differently on both Red Hat-ish distros and Debian. DEBIAN: ----------- On Debian systems (I have a Debian Etch system handy), you'll go into the directory /etc/udev/rules.d and edit a file that looks like this (just grep for eth0 in the whole directory). Note that each entry in these z??_whatever files is *ONE* line, despite the word-wrapping going on in this email! terrell at debianbox:/etc/udev/rules.d$ grep eth0 * z25_persistent-net.rules:SUBSYSTEM=="net", DRIVERS=="?*", ATTRS{address}=="00:02:a5:51:54:65", NAME="eth0" terrell at debianbox:/etc/udev/rules.d$ Aha! We have our file, so let's look at it.... terrell at debianbox:/etc/udev/rules.d$ more z25_persistent-net.rules # This file was automatically generated by the /lib/udev/write_net_rules # program, probably run by the persistent-net-generator.rules rules file. # # You can modify it, as long as you keep each rule on a single line. # MAC addresses must be written in lowercase. # PCI device 0x8086:0x1229 (e100) SUBSYSTEM=="net", DRIVERS=="?*", ATTRS{address}=="00:02:a5:51:54:65", NAME="eth0" terrell at debianbox:/etc/udev/rules.d$ RED HAT: ------------- On my CentOS 5 workstation (actually K12LTSP 5.0EL running in "regular workstation" mode), there's a file called /etc/modprobe.conf. It tells the kernel to "alias" eth0 to a specific NIC driver. In my case, it looks like this: more [microman at multimedia01 ~]$ more /etc/modprobe.conf alias eth0 forcedeth alias scsi_hostadapter sata_nv alias snd-card-0 snd-intel8x0 options snd-card-0 index=0 options snd-intel8x0 index=0 remove snd-intel8x0 { /usr/sbin/alsactl store 0 >/dev/null 2>&1 || : ; }; /sbin/ modprobe -r --ignore-remove snd-intel8x0 alias snd-card-1 snd-mpu401 options snd-card-1 index=1 options snd-mpu401 index=1 remove snd-mpu401 { /usr/sbin/alsactl store 1 >/dev/null 2>&1 || : ; }; /sbin/mo dprobe -r --ignore-remove snd-mpu401 [microman at multimedia01 ~]$ Note the first line with "eth0" in it. For dual-NIC systems like LTSP servers, you can also put in an "eth1" line. Hopefully this will help out, regardless of which LTSP distro you use. Let us know. --TP From robark at gmail.com Sun Sep 7 16:27:05 2008 From: robark at gmail.com (Robert Arkiletian) Date: Sun, 7 Sep 2008 09:27:05 -0700 Subject: [K12OSN] Slow Booting LTSP Clients - K12LTSP5EL In-Reply-To: References: Message-ID: 2008/9/7 Stephen Crampton : > Charlie, > > Thanks so much for your advice. > > Actually, I already tried that, but then a message came up saying RAID not > detected or something to that effect during the bootstrap procedure. > > Right now I have two hard drives connected to the motherboard. I was > planning to install different versions of Linux with LTSP on each one, so I > could see what was going to work. Right now, I'm reinstalling ubuntu, which > at least seems to be happy with all of my hardware. > > I tried to switch my network hardware around, by reassigning eth0 and eth1 > in /etc/udev/ ... persistent-net-rules. This time I am going to leave the > default configuration as is. This means, unfortunately, that eth0, which > will be serving LTSP, will only be 100 Mbps. > > I may try unhooking the ubuntu drive from the motherboard and then trying > your suggestion to install K12LTSP. the probable reason k12ltsp is not installing is that the kernel in centos 5.0 does not recognize your 8237S southbridge chip. Your only chance to get it to work would be centos 5.2 kernel which has updated Sata drivers. One option, although a hassle, would be to install on another box then "yum update" to centos version 5.2. Then put that drive back into your original MB. BTW if you have 2 drives, I would configure them in a software raid 1 for reliablity and speed if you are going to using this for a production system. http://www.redhat.com/docs/manuals/enterprise/RHEL-5-manual/Deployment_Guide-en-US/s1-raid-config.html PS Stephen when you reply to messages it seems you are removing the "Re:" from the beginning of the subject header. This is causing every new post of yours to create a new thread. Please try to correct this. Thanks. -- Robert Arkiletian Eric Hamber Secondary, Vancouver, Canada Fl_TeacherTool http://www3.telus.net/public/robark/Fl_TeacherTool/ C++ GUI tutorial http://www3.telus.net/public/robark/ From lesmikesell at gmail.com Sun Sep 7 17:21:38 2008 From: lesmikesell at gmail.com (Les Mikesell) Date: Sun, 07 Sep 2008 12:21:38 -0500 Subject: [K12OSN] eth0 and eth1 In-Reply-To: References: Message-ID: <48C40DA2.2080301@gmail.com> Stephen Crampton wrote: > Could someone please explain how an LTSP system decides how to use eth0 and > eth1? Physically, recent kernel's can detect and name them in any order. The config files in /etc/sysconfig/network-scripts/ifcfg-eth? store the ethernet hardware address and the device name so it doesn't change after configuration. > For instance, if I pull up firefox and type in cnn.com, over which interface > does my request go out? An application can bind to an interface but most just default to following the route table. That is, the source interface and IP address will be the one connected to the next hop router for the source address or the matching local subnet. > Which interface is serving DHCP and TFTP requests? DHCP is sort-of a special case because it does bind to interfaces and needs matching subnet addresses in its config file. > /etc/ltsp/dhcpd.conf doesn't seem to provide the answer. The DHCP script > under /etc/init.d refers to a variable $INTERFACES, but I cannot figure out > where that variable is initialized. > > I'm assuming that, in the default case, firefox sends requests over both > interfaces, but dhcpd only uses eth0. But how do I determine whether this > is true or not for my system? It's the other way around on k12ltsp: eth1 faces the 'public' side and can pick up its address from an existing dhcp server on your network while eth0 runs a private dhcp server for your clients - but I don't know if Edubuntu uses the same scheme. One way to be sure you don't break the rest of the network by getting this wrong is to not connect either interface to the main network until you can boot a client to prove you have the dhcp-serving side connected to the right place. -- Les Mikesell lesmikesellgmail.com From rowens at ptd.net Sun Sep 7 18:48:17 2008 From: rowens at ptd.net (Rob Owens) Date: Sun, 7 Sep 2008 14:48:17 -0400 Subject: [K12OSN] Slow Booting LTSP Clients - K12LTSP5EL In-Reply-To: <48C2BC1B.5020407@redhat.com> References: <48C2BC1B.5020407@redhat.com> Message-ID: <20080907184817.GA6891@junker.owens.net> On Sat, Sep 06, 2008 at 01:21:31PM -0400, Warren Togami wrote: > Stephen Crampton wrote: > >In response to the problems with slow DHCP under Edubuntu, I've decided > >to try and install the K12LTSP Centos 5EL. > > > >I'm using the same machine. I just switched hard drives (same make and > >model). > > > >I'm using the 6 install CDs (the install DVD would not burn on my system > >-- too big). > > > >The installation stops and says I do not have any hard drives. The BIOS > >recognizes the hard drive and indeed I can boot from it. > > > >The motherboard says M2V-MX SE on it. I searched around and found > >reference to a sata_via module. I tried adding the module through the > >Centos installation menu (where it says, "do you want to add any > >hardware modules?"). However, the installation still fails a few > >screens later (after I choose English language and keyboard and LTSP > >system). It says there is no hard drive again. > > > > Have you tried flipping options in the BIOS related to the SATA. Some > BIOS need to enable or disable "legacy" ATA in order to work properly > with older kernels like CentOS 5. > I had a similar problem with CentOS 5, and it was related to the SATA settings in the BIOS. One of the options was AHCI or something like that -- I don't remember which option ended up working for me, but I remember that it worked fine once I hit the "correct" one. -Rob From rowens at ptd.net Sun Sep 7 18:55:18 2008 From: rowens at ptd.net (Rob Owens) Date: Sun, 7 Sep 2008 14:55:18 -0400 Subject: [K12OSN] eth0 and eth1 In-Reply-To: References: Message-ID: <20080907185518.GB6891@junker.owens.net> On Sun, Sep 07, 2008 at 10:42:33AM -0400, Stephen Crampton wrote: > Could someone please explain how an LTSP system decides how to use eth0 and > eth1? > > For instance, if I pull up firefox and type in cnn.com, over which interface > does my request go out? > > Which interface is serving DHCP and TFTP requests? > > /etc/ltsp/dhcpd.conf doesn't seem to provide the answer. The DHCP script > under /etc/init.d refers to a variable $INTERFACES, but I cannot figure out > where that variable is initialized. > On my Debian Etch system, /etc/default/dhcp3-server has a line: INTERFACES="" You can change that to say INTERFACES="eth1" if you want DHCP to only serve addresses on eth1. -Rob From aimssda at cscoms.com Mon Sep 8 03:03:54 2008 From: aimssda at cscoms.com (Edwardson Pedragosa) Date: Mon, 08 Sep 2008 10:03:54 +0700 Subject: [K12OSN] LTSP Lab Slow to Boot In-Reply-To: <20080906160030.1995961A3CE@hormel.redhat.com> References: <20080906160030.1995961A3CE@hormel.redhat.com> Message-ID: <48C4961A.8010600@cscoms.com> Warren, here is another person that is having the same problems I had with Edubuntu 8.04.1. Note that the same issues with the DHCP server; not working or working very slowly. Burke, I wish I had an answer for you. I tried for several weeks to get this same issue resolved on the Ubuntu forums with no luck. In my opinion, the Edubuntu support is very limited at best. Ubuntu/Edubuntu also has video and networking issues that you will sooner or later encounter. A quick Google will confirm the video issues. These are all directly related to the design of this distribution. Ubuntu needs to spend less time trying to be the next Mac or Windows and try making their distribution reliable, stable, and usable. I switched to the K12LTSP EL5 and have had no problems with performance or reliability. Red Hat is a much more reliable and stable platform. Bleeding edge is for those that have a lot of time and like to play with new stuff. I recommend you make that move soon too, before you waste a lot of time as I did on trying to work through bugs that the vendor doesn't have time or interest in fixing... ------------- Hi, I tested edubuntu 2 weeks ago and the same issue, it's very slow (clients). Some thin clients didn't even boot up. So I switched back to K12ltsp EL5 which is centos based. And all my clients are running smoothly. I also tried k12linux but it's still in it's development stage so I also erased it. But I noticed that all my clients (Dell Optiplex GX100) booted without further configurations. Regards, Edward TH From moon at smbis.com Mon Sep 8 05:03:41 2008 From: moon at smbis.com (Moon) Date: Mon, 8 Sep 2008 01:03:41 -0400 Subject: [K12OSN] eth0 and eth1 In-Reply-To: References: Message-ID: <4D77975E354648F48BADAC189487BE71@acerpc> Stephen, from all the response I've seen tonight, some of which give very detailed explanations of how the kernel assigns logical names to physical devices and so on, I thought I would give you my input based on my personal experiences with both Ubuntu/Edubuntu and K12LTSP. >From what I have been able to understand, both use the same default assignments; eth0 is for the thin client network, and eth1 is for the internet side. Edubuntu default install assigns eth0 to static ip address 192.168.0.254, however, eth1 I setup to get an ip address via dhcp, see /etc/network/interfaces file. As to which interface gets assigned eth0 or eth1, I think several of the responses addressed that fairly well. Although I personally found that integrated Ethernet interfaces are generally assigned to eth0, and the first PCI installed Ethernet interface is assigned to eth1. However, if you have nic failure in Ubuntu/Edubuntu, and replace that interface with another, then the network manager will assign a new logical name like eth2 or eth3. Then you can have a lot of fun reconfiguring the interface name to the one that originally failed. One of the quirks with the default Edubuntu setup is that the /etc/default/dhcp3-server doesn't have eth0 nor eth1 assigned, but uses the default INTERFACES="", which I assume means either none or all, since no default setting is configured even though the LTSP default config sets up dhcp on eth0, and set eth1 to get ip addressing via dhcp. Another Edubuntu default configuration quirk is in the /etc/ltsp/dhcpd.conf file where the default settings for eth0 (remember that Edubuntu sets this as the default thin client interface) are all set to 192.168.0.1 instead of the statically assigned default ip address 192.168.0.254 automatically assigned when you install it, see /etc/network/interfaces file. It's these kinds of quirks that make me not feel too comfortable with Edubuntu. If there was one clear document that explained how it is supposed to work and gave examples for the various config settings, then I'm sure it would be a nice platform. But, there are a lot of documents out there that are not complete, have conflicting information, or missing bits and pieces, and yes I have googled and been though every piece of information I could find in forums and online documents. If the developers would get involved with a couple actual deployments and walked through the process several times, I believe they would find areas that need tweaking and others that need to be put back into "let's rethink this one" category. I wish you luck, as I had little to none with Edubuntu. Charlie _____ From: Stephen Crampton [mailto:SteveSings at gmail.com] Sent: Sunday, September 07, 2008 10:43 AM To: k12osn at redhat.com Subject: [K12OSN] eth0 and eth1 Could someone please explain how an LTSP system decides how to use eth0 and eth1? For instance, if I pull up firefox and type in cnn.com, over which interface does my request go out? Which interface is serving DHCP and TFTP requests? /etc/ltsp/dhcpd.conf doesn't seem to provide the answer. The DHCP script under /etc/init.d refers to a variable $INTERFACES, but I cannot figure out where that variable is initialized. I'm assuming that, in the default case, firefox sends requests over both interfaces, but dhcpd only uses eth0. But how do I determine whether this is true or not for my system? I'm using Edubuntu 8.04 again, because none of the K12LTSP install discs recognize my SATA hard drives (I tried 5SEL, 6SEL, and a beta live version). No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.169 / Virus Database: 270.6.17/1657 - Release Date: 09/06/2008 08:07 PM -------------- next part -------------- An HTML attachment was scrubbed... URL: From rob.owens at biochemfluidics.com Mon Sep 8 15:04:04 2008 From: rob.owens at biochemfluidics.com (Rob Owens) Date: Mon, 08 Sep 2008 11:04:04 -0400 Subject: [K12OSN] bootup slow -- nfs server not responding Message-ID: <48C53EE4.1080504@biochemfluidics.com> I'm running K12LTSP 5.0EL 32-bit on a desktop-like machine with software RAID 1 using SATA drives. Processor is a dual-core AMD 5000+, NIC is gigabit, and I just upgraded to 4GB RAM (from 2GB). It's serving 11 GNOME sessions and 5 rdesktop sessions. The server also runs MySQL and Apache for some very lightly used web applications. The reason I upgraded the RAM is because I've been getting slow boot times on the thin clients, with the message "nfs server not responding" showing up at least 10 times during the boot process. The clients eventually boot successfully. The upgrade didn't seem to help, but hey, it was cheap and easy to try. iftop says I'm only using about 20Mb of bandwidth on the server's NIC. top shows the CPU usage is usually below 5%, and rarely hits 40%. So I think my hardware is up to the task. Are there any NFS tweaks I should be employing to eliminate the "not responding" errors, thereby speeding up my boot process? By the way, I have very little other network activity so I don't think my wires or my switch are saturated. -Rob ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** From lesmikesell at gmail.com Mon Sep 8 15:49:59 2008 From: lesmikesell at gmail.com (Les Mikesell) Date: Mon, 08 Sep 2008 10:49:59 -0500 Subject: [K12OSN] bootup slow -- nfs server not responding In-Reply-To: <48C53EE4.1080504@biochemfluidics.com> References: <48C53EE4.1080504@biochemfluidics.com> Message-ID: <48C549A7.7060709@gmail.com> Rob Owens wrote: > I'm running K12LTSP 5.0EL 32-bit on a desktop-like machine with software > RAID 1 using SATA drives. Processor is a dual-core AMD 5000+, NIC is > gigabit, and I just upgraded to 4GB RAM (from 2GB). It's serving 11 > GNOME sessions and 5 rdesktop sessions. The server also runs MySQL and > Apache for some very lightly used web applications. > > The reason I upgraded the RAM is because I've been getting slow boot > times on the thin clients, with the message "nfs server not responding" > showing up at least 10 times during the boot process. The clients > eventually boot successfully. The upgrade didn't seem to help, but hey, > it was cheap and easy to try. > > iftop says I'm only using about 20Mb of bandwidth on the server's NIC. > top shows the CPU usage is usually below 5%, and rarely hits 40%. So I > think my hardware is up to the task. Are there any NFS tweaks I should > be employing to eliminate the "not responding" errors, thereby speeding > up my boot process? > > By the way, I have very little other network activity so I don't think > my wires or my switch are saturated. > Are you up to date with the current 5.2 updates? I think one of the fairly recent kernel updates had NFS performance fixes - I'm not sure if it will help with this issue, though. -- Les Mikesell lesmikesell at gmail.com From rob.owens at biochemfluidics.com Mon Sep 8 16:07:41 2008 From: rob.owens at biochemfluidics.com (Rob Owens) Date: Mon, 08 Sep 2008 12:07:41 -0400 Subject: [K12OSN] bootup slow -- nfs server not responding In-Reply-To: <48C549A7.7060709@gmail.com> References: <48C53EE4.1080504@biochemfluidics.com> <48C549A7.7060709@gmail.com> Message-ID: <48C54DCD.5010708@biochemfluidics.com> Les Mikesell wrote: > Rob Owens wrote: >> I'm running K12LTSP 5.0EL 32-bit on a desktop-like machine with software >> RAID 1 using SATA drives. Processor is a dual-core AMD 5000+, NIC is >> gigabit, and I just upgraded to 4GB RAM (from 2GB). It's serving 11 >> GNOME sessions and 5 rdesktop sessions. The server also runs MySQL and >> Apache for some very lightly used web applications. >> >> The reason I upgraded the RAM is because I've been getting slow boot >> times on the thin clients, with the message "nfs server not responding" >> showing up at least 10 times during the boot process. The clients >> eventually boot successfully. The upgrade didn't seem to help, but hey, >> it was cheap and easy to try. >> >> iftop says I'm only using about 20Mb of bandwidth on the server's NIC. >> top shows the CPU usage is usually below 5%, and rarely hits 40%. So I >> think my hardware is up to the task. Are there any NFS tweaks I should >> be employing to eliminate the "not responding" errors, thereby speeding >> up my boot process? >> >> By the way, I have very little other network activity so I don't think >> my wires or my switch are saturated. >> > > Are you up to date with the current 5.2 updates? I think one of the > fairly recent kernel updates had NFS performance fixes - I'm not sure if > it will help with this issue, though. > All up to date -- except for the kernel. I have that excluded in yum.conf in order to avoid reboots. I'll update and reboot tonight and see how that goes. Thanks for the advice. -Rob ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** From wtogami at redhat.com Mon Sep 8 16:08:55 2008 From: wtogami at redhat.com (Warren Togami) Date: Mon, 08 Sep 2008 12:08:55 -0400 Subject: [K12OSN] Re: K12Linux branding ideas In-Reply-To: <48B5BCC2.9080409@redhat.com> References: <48B5BCC2.9080409@redhat.com> Message-ID: <48C54E17.4070001@redhat.com> Warren Togami wrote: > Hey folks, > > We may soon have ownership of k12linux.* domains. We need to decide how > we will use the K12Linux brand name. > > In the tradition of K12LTSP, perhaps we should call the installable > media spins K12Linux. > > K12Linux Live Server F9 Beta 2 > K12Linux Live Server F9 > K12Linux Live Server F10 > K12linux Live Server EL6 > Hmm, I'm also considering: K12Linux Live LTSP Server F9 Beta 2 K12Linux Live LTSP Server F9 K12Linux Live LTSP Server F10 K12Linux Live LTSP Server EL6 You think folks would be confused with the lack of "LTSP" in the name? Or is "Live" important to include in the name? Warren Togami wtogami at redhat.com From microman at cmosnetworks.com Mon Sep 8 16:11:09 2008 From: microman at cmosnetworks.com (Terrell Prude' Jr.) Date: Mon, 8 Sep 2008 12:11:09 -0400 Subject: [K12OSN] bootup slow -- nfs server not responding In-Reply-To: <48C54DCD.5010708@biochemfluidics.com> References: <48C53EE4.1080504@biochemfluidics.com> <48C549A7.7060709@gmail.com> <48C54DCD.5010708@biochemfluidics.com> Message-ID: <200809081211.09243.microman@cmosnetworks.com> On Monday 08 September 2008 12:07, Rob Owens wrote: > Les Mikesell wrote: > > > > Are you up to date with the current 5.2 updates? I think one of the > > fairly recent kernel updates had NFS performance fixes - I'm not sure if > > it will help with this issue, though. > > All up to date -- except for the kernel. I have that excluded in > yum.conf in order to avoid reboots. I'll update and reboot tonight and > see how that goes. Thanks for the advice. > > -Rob Bear in mind that mainstream GNU/Linux distros--unlike MS Windows--do not force a reboot after you update the kernel. So, you're safe in letting that happen. Fortunately, kernel updates aren't super-common anyway. --TP From microman at cmosnetworks.com Mon Sep 8 16:20:26 2008 From: microman at cmosnetworks.com (Terrell Prude' Jr.) Date: Mon, 8 Sep 2008 12:20:26 -0400 Subject: [K12OSN] Re: K12Linux branding ideas In-Reply-To: <48C54E17.4070001@redhat.com> References: <48B5BCC2.9080409@redhat.com> <48C54E17.4070001@redhat.com> Message-ID: <200809081220.26256.microman@cmosnetworks.com> On Monday 08 September 2008 12:08, Warren Togami wrote: > Warren Togami wrote: > > Hey folks, > > > > We may soon have ownership of k12linux.* domains. We need to decide how > > we will use the K12Linux brand name. > > > > In the tradition of K12LTSP, perhaps we should call the installable > > media spins K12Linux. > > > > K12Linux Live Server F9 Beta 2 > > K12Linux Live Server F9 > > K12Linux Live Server F10 > > K12linux Live Server EL6 > > Hmm, I'm also considering: > K12Linux Live LTSP Server F9 Beta 2 > K12Linux Live LTSP Server F9 > K12Linux Live LTSP Server F10 > K12Linux Live LTSP Server EL6 > > You think folks would be confused with the lack of "LTSP" in the name? > > Or is "Live" important to include in the name? I don't believe the word "Live" is that important, really. Ubuntu doesn't do it, Knoppix doesn't do it, nobody else I personally know of that makes Live CD's does it. The "LTSP", though, or alternately "Terminal Server", is important, though. When I refer to K12LTSP to most school technical staff, I've found that if I describe it--colloquially--as "basically Red Hat Linux, Terminal Server Edition", then they get the idea. This is because they're already familiar with "Windows NT/2000/2003 Terminal Server". For existing K12LTSP users, and there are plenty, we ought to keep some reference to LTSP, even if it's "K12Linux Terminal Server Edition". BTW, your choice of version naming is nice (F9, F10, EL6, etc.). Clear and to the point. --TP From nils at breun.nl Mon Sep 8 16:25:50 2008 From: nils at breun.nl (Nils Breunese) Date: Mon, 8 Sep 2008 18:25:50 +0200 Subject: [SPAM] MEDIUM * Re: [K12OSN] bootup slow -- nfs server not responding In-Reply-To: <200809081211.09243.microman@cmosnetworks.com> References: <48C53EE4.1080504@biochemfluidics.com> <48C549A7.7060709@gmail.com> <48C54DCD.5010708@biochemfluidics.com> <200809081211.09243.microman@cmosnetworks.com> Message-ID: <39C91A5C-2256-44DE-8B0B-A920B847094C@breun.nl> Terrell Prude' Jr. wrote: > On Monday 08 September 2008 12:07, Rob Owens wrote: >> Les Mikesell wrote: >>> >>> Are you up to date with the current 5.2 updates? I think one of the >>> fairly recent kernel updates had NFS performance fixes - I'm not >>> sure if >>> it will help with this issue, though. >> >> All up to date -- except for the kernel. I have that excluded in >> yum.conf in order to avoid reboots. I'll update and reboot tonight >> and >> see how that goes. Thanks for the advice. >> >> -Rob > > Bear in mind that mainstream GNU/Linux distros--unlike MS Windows-- > do not > force a reboot after you update the kernel. So, you're safe in > letting that > happen. Fortunately, kernel updates aren't super-common anyway. But sometimes they do fix local root exploits (like a couple of months ago), so I guess you subscribe to the updates announcements mailinglist to stay on top of these things. Nils Breunese. From thewhitmers at gmail.com Mon Sep 8 16:31:02 2008 From: thewhitmers at gmail.com (David Whitmer) Date: Mon, 8 Sep 2008 12:31:02 -0400 Subject: [K12OSN] Re: K12Linux branding ideas In-Reply-To: <200809081220.26256.microman@cmosnetworks.com> References: <48B5BCC2.9080409@redhat.com> <48C54E17.4070001@redhat.com> <200809081220.26256.microman@cmosnetworks.com> Message-ID: On Mon, Sep 8, 2008 at 12:20 PM, Terrell Prude' Jr. < microman at cmosnetworks.com> wrote: > On Monday 08 September 2008 12:08, Warren Togami wrote: > > Warren Togami wrote: > > > Hey folks, > > > > > > We may soon have ownership of k12linux.* domains. We need to decide > how > > > we will use the K12Linux brand name. > > > > > > In the tradition of K12LTSP, perhaps we should call the installable > > > media spins K12Linux. > > > > > > K12Linux Live Server F9 Beta 2 > > > K12Linux Live Server F9 > > > K12Linux Live Server F10 > > > K12linux Live Server EL6 > > > > Hmm, I'm also considering: > > K12Linux Live LTSP Server F9 Beta 2 > > K12Linux Live LTSP Server F9 > > K12Linux Live LTSP Server F10 > > K12Linux Live LTSP Server EL6 > > > > You think folks would be confused with the lack of "LTSP" in the name? > > > > Or is "Live" important to include in the name? > > I don't believe the word "Live" is that important, really. Ubuntu doesn't > do > it, Knoppix doesn't do it, nobody else I personally know of that makes Live > CD's does it. The "LTSP", though, or alternately "Terminal Server", is > important, though. > > When I refer to K12LTSP to most school technical staff, I've found that if > I > describe it--colloquially--as "basically Red Hat Linux, Terminal Server > Edition", then they get the idea. This is because they're already familiar > with "Windows NT/2000/2003 Terminal Server". > > For existing K12LTSP users, and there are plenty, we ought to keep some > reference to LTSP, even if it's "K12Linux Terminal Server Edition". > > BTW, your choice of version naming is nice (F9, F10, EL6, etc.). Clear and > to > the point. > > --TP > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > I, too, prefer "K12Linux Terminal Server Edition" to "K12Linux Live LTSP Server" for some of the same reasons. In my experience, I've often had to explain what "LTSP" meant when describing K12LTSP to others, especially non-Linux people. But a lot of people seem to understand "terminal server". Regarding "live"... I, too, prefer dropping that from the name. As pointed out, many other distributions are live CDs/DVDs but do not bother to include that in their name. It's to the point where you can almost assume a disc is a live bootable disc unless the description clearly states "install only". David Whitmer -------------- next part -------------- An HTML attachment was scrubbed... URL: From microman at cmosnetworks.com Mon Sep 8 16:34:46 2008 From: microman at cmosnetworks.com (Terrell Prude' Jr.) Date: Mon, 8 Sep 2008 12:34:46 -0400 Subject: [SPAM] MEDIUM * Re: [K12OSN] bootup slow -- nfs server not responding In-Reply-To: <39C91A5C-2256-44DE-8B0B-A920B847094C@breun.nl> References: <48C53EE4.1080504@biochemfluidics.com> <200809081211.09243.microman@cmosnetworks.com> <39C91A5C-2256-44DE-8B0B-A920B847094C@breun.nl> Message-ID: <200809081234.46506.microman@cmosnetworks.com> On Monday 08 September 2008 12:25, Nils Breunese wrote: > Terrell Prude' Jr. wrote: > > On Monday 08 September 2008 12:07, Rob Owens wrote: > >> Les Mikesell wrote: > >>> Are you up to date with the current 5.2 updates? I think one of the > >>> fairly recent kernel updates had NFS performance fixes - I'm not > >>> sure if > >>> it will help with this issue, though. > >> > >> All up to date -- except for the kernel. I have that excluded in > >> yum.conf in order to avoid reboots. I'll update and reboot tonight > >> and > >> see how that goes. Thanks for the advice. > >> > >> -Rob > > > > Bear in mind that mainstream GNU/Linux distros--unlike MS Windows-- > > do not > > force a reboot after you update the kernel. So, you're safe in > > letting that > > happen. Fortunately, kernel updates aren't super-common anyway. > > But sometimes they do fix local root exploits (like a couple of months > ago), so I guess you subscribe to the updates announcements > mailinglist to stay on top of these things. > > Nils Breunese. Oh, I agree. Personally, I update the kernels on my boxes every time. There's a reason Linus & Co. put out fixes, and unlike "other dev teams", it's not to hurt us. It's to help us. If someone wants to avoid doing reboots, then this way--bringind down the kernel update anyway, but scheduling your reboots, say, monthly--is, I think, a good compromise between Rob's desire for uptime, while still getting all your bug fixes. If something does come in on the updates announcements mailing list, then you can do "emergency" maintenance (read: a non-regular-interval reboot at night). --TP From wtogami at redhat.com Mon Sep 8 16:50:02 2008 From: wtogami at redhat.com (Warren Togami) Date: Mon, 08 Sep 2008 12:50:02 -0400 Subject: [K12OSN] Re: K12Linux branding ideas In-Reply-To: References: <48B5BCC2.9080409@redhat.com> <48C54E17.4070001@redhat.com> <200809081220.26256.microman@cmosnetworks.com> Message-ID: <48C557BA.8000201@redhat.com> How about: K12Linux Terminal Server F9 Beta 2 K12Linux Terminal Server F9 K12Linux Terminal Server F10 K12Linux Terminal Server EL6 Warren From rob.owens at biochemfluidics.com Mon Sep 8 16:50:56 2008 From: rob.owens at biochemfluidics.com (Rob Owens) Date: Mon, 08 Sep 2008 12:50:56 -0400 Subject: [K12OSN] bootup slow -- nfs server not responding In-Reply-To: <200809081211.09243.microman@cmosnetworks.com> References: <48C53EE4.1080504@biochemfluidics.com> <48C549A7.7060709@gmail.com> <48C54DCD.5010708@biochemfluidics.com> <200809081211.09243.microman@cmosnetworks.com> Message-ID: <48C557F0.2010805@biochemfluidics.com> Terrell Prude' Jr. wrote: > On Monday 08 September 2008 12:07, Rob Owens wrote: >> Les Mikesell wrote: >>> Are you up to date with the current 5.2 updates? I think one of the >>> fairly recent kernel updates had NFS performance fixes - I'm not sure if >>> it will help with this issue, though. >> All up to date -- except for the kernel. I have that excluded in >> yum.conf in order to avoid reboots. I'll update and reboot tonight and >> see how that goes. Thanks for the advice. >> >> -Rob > > Bear in mind that mainstream GNU/Linux distros--unlike MS Windows--do not > force a reboot after you update the kernel. So, you're safe in letting that > happen. Fortunately, kernel updates aren't super-common anyway. > Yeah I know. But my Debian systems give me a warning that I must reboot "soon" (something about modules that won't be able to load until a reboot). Since I don't fully understand the reason, I try not to upgrade the kernel until I'm ready to reboot. Can you explain what the real risks are? -Rob ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** From microman at cmosnetworks.com Mon Sep 8 16:59:30 2008 From: microman at cmosnetworks.com (Terrell Prude' Jr.) Date: Mon, 8 Sep 2008 12:59:30 -0400 Subject: [K12OSN] Re: K12Linux branding ideas In-Reply-To: <48C557BA.8000201@redhat.com> References: <48B5BCC2.9080409@redhat.com> <48C557BA.8000201@redhat.com> Message-ID: <200809081259.30488.microman@cmosnetworks.com> On Monday 08 September 2008 12:50, Warren Togami wrote: > How about: > > K12Linux Terminal Server F9 Beta 2 > K12Linux Terminal Server F9 > K12Linux Terminal Server F10 > K12Linux Terminal Server EL6 > > Warren Aw, Warren, you're making sense now, that's against Government regulations :-D Seriously, though, I think we have a winner there. When I read that, I have a pretty doggone good idea of what the product is and does. --TP From balmquist at mindfirestudios.com Mon Sep 8 16:59:16 2008 From: balmquist at mindfirestudios.com (Almquist Burke) Date: Mon, 8 Sep 2008 11:59:16 -0500 Subject: [K12OSN] Re: K12Linux branding ideas In-Reply-To: References: <48B5BCC2.9080409@redhat.com> <48C54E17.4070001@redhat.com> <200809081220.26256.microman@cmosnetworks.com> Message-ID: <43D03768-E84E-4EF0-B1CA-35A8B4630358@mindfirestudios.com> -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 > For existing K12LTSP users, and there are plenty, we ought to keep > some > reference to LTSP, even if it's "K12Linux Terminal Server Edition". > > BTW, your choice of version naming is nice (F9, F10, EL6, etc.). > Clear and to > the point. I was thinking FC10 - K12Linux Terminal Server and EL6 - K12Linux Terminal Server. We should make sure the installer will let you deselect the EDU or LTSP option. Lots of people like to install just the LTSP or just the EDU part. For example, you might install K12Linux on a student's stand alone PC and skip the terminal services part. This also allows those that don't use the EDU apps to avoid installing all the EDU apps and games. It should almost just be an install option in Fedora or EL that requires an additional CD or installation of a yum metapackage(s). The advantage of the respin is that you avoid having to put those options in the standard fedora or RHEL installer as another profile or choice a non-K12LTSP user has to look at. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (Darwin) iEYEARECAAYFAkjFWeQACgkQxWV7OPa/g5GXQACggZzpK1EPbqVY89EXJsaBx4SE B00An3ePB+JtgRgCeMo0LajMbR3plEiX =gJMR -----END PGP SIGNATURE----- From lesmikesell at gmail.com Mon Sep 8 17:07:49 2008 From: lesmikesell at gmail.com (Les Mikesell) Date: Mon, 08 Sep 2008 12:07:49 -0500 Subject: [K12OSN] bootup slow -- nfs server not responding In-Reply-To: <200809081211.09243.microman@cmosnetworks.com> References: <48C53EE4.1080504@biochemfluidics.com> <48C549A7.7060709@gmail.com> <48C54DCD.5010708@biochemfluidics.com> <200809081211.09243.microman@cmosnetworks.com> Message-ID: <48C55BE5.8010807@gmail.com> Terrell Prude' Jr. wrote: > On Monday 08 September 2008 12:07, Rob Owens wrote: >> Les Mikesell wrote: >>> Are you up to date with the current 5.2 updates? I think one of the >>> fairly recent kernel updates had NFS performance fixes - I'm not sure if >>> it will help with this issue, though. >> All up to date -- except for the kernel. I have that excluded in >> yum.conf in order to avoid reboots. I'll update and reboot tonight and >> see how that goes. Thanks for the advice. >> >> -Rob > > Bear in mind that mainstream GNU/Linux distros--unlike MS Windows--do not > force a reboot after you update the kernel. So, you're safe in letting that > happen. Fortunately, kernel updates aren't super-common anyway. I think yum is also smart enough not to delete your running kernel even if it is configured to only keep 2 and you've updated several times without rebooting. That means even if an update installs a new kernel that doesn't work you will be able to boot your working version by selecting it at the boot prompt. Unbootable update kernels are unlikely from CentOS, but I've had several from Fedora on certain hardware. -- Les Mikesell lesmikesell at gmail.com From rob.owens at biochemfluidics.com Mon Sep 8 17:08:21 2008 From: rob.owens at biochemfluidics.com (Rob Owens) Date: Mon, 08 Sep 2008 13:08:21 -0400 Subject: [SPAM] MEDIUM * Re: [K12OSN] bootup slow -- nfs server not responding In-Reply-To: <39C91A5C-2256-44DE-8B0B-A920B847094C@breun.nl> References: <48C53EE4.1080504@biochemfluidics.com> <48C549A7.7060709@gmail.com> <48C54DCD.5010708@biochemfluidics.com> <200809081211.09243.microman@cmosnetworks.com> <39C91A5C-2256-44DE-8B0B-A920B847094C@breun.nl> Message-ID: <48C55C05.5080100@biochemfluidics.com> Nils Breunese wrote: > Terrell Prude' Jr. wrote: > >> On Monday 08 September 2008 12:07, Rob Owens wrote: >>> Les Mikesell wrote: >>>> >>>> Are you up to date with the current 5.2 updates? I think one of the >>>> fairly recent kernel updates had NFS performance fixes - I'm not >>>> sure if >>>> it will help with this issue, though. >>> >>> All up to date -- except for the kernel. I have that excluded in >>> yum.conf in order to avoid reboots. I'll update and reboot tonight and >>> see how that goes. Thanks for the advice. >>> >>> -Rob >> >> Bear in mind that mainstream GNU/Linux distros--unlike MS Windows--do not >> force a reboot after you update the kernel. So, you're safe in >> letting that >> happen. Fortunately, kernel updates aren't super-common anyway. > > But sometimes they do fix local root exploits (like a couple of months > ago), so I guess you subscribe to the updates announcements mailinglist > to stay on top of these things. > Yeah, that's a good reason not to exclude kernel updates. Luckily that one was big enough news that I heard about it right away and updated/rebooted. -Rob ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** From henryhartley at westat.com Mon Sep 8 17:17:40 2008 From: henryhartley at westat.com (Henry Hartley) Date: Mon, 8 Sep 2008 13:17:40 -0400 Subject: [K12OSN] Re: K12Linux branding ideas In-Reply-To: <48C557BA.8000201@redhat.com> Message-ID: <62432006F5965C42BAEC4EA29286EE0507AD056C19@EX-CMS01.westat.com> Warren Togami wrote: >> >> How about: >> K12Linux Terminal Server F9 Beta 2 >> K12Linux Terminal Server F9 >> K12Linux Terminal Server F10 >> K12Linux Terminal Server EL6 For people "in the know" LTSP is fine because it means something very specific. The problem is that when talking to people who know a little less, I end up having to expand LTSP. "K12Linux Linux Terminal Server Project" is too long and just sounds funny. So, I like "K12Linux Termainal Server..." -- Henry From wtogami at redhat.com Mon Sep 8 17:18:36 2008 From: wtogami at redhat.com (Warren Togami) Date: Mon, 08 Sep 2008 13:18:36 -0400 Subject: [K12OSN] Re: K12Linux branding ideas In-Reply-To: <43D03768-E84E-4EF0-B1CA-35A8B4630358@mindfirestudios.com> References: <48B5BCC2.9080409@redhat.com> <48C54E17.4070001@redhat.com> <200809081220.26256.microman@cmosnetworks.com> <43D03768-E84E-4EF0-B1CA-35A8B4630358@mindfirestudios.com> Message-ID: <48C55E6C.9020202@redhat.com> Almquist Burke wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > >> For existing K12LTSP users, and there are plenty, we ought to keep some >> reference to LTSP, even if it's "K12Linux Terminal Server Edition". >> >> BTW, your choice of version naming is nice (F9, F10, EL6, etc.). >> Clear and to >> the point. > > I was thinking FC10 - K12Linux Terminal Server and EL6 - K12Linux > Terminal Server. We should make sure the installer will let you deselect > the EDU or LTSP option. Lots of people like to install just the LTSP or > just the EDU part. For example, you might install K12Linux on a > student's stand alone PC and skip the terminal services part. This also > allows those that don't use the EDU apps to avoid installing all the EDU > apps and games. > It should almost just be an install option in Fedora or EL that > requires an additional CD or installation of a yum metapackage(s). The > advantage of the respin is that you avoid having to put those options in > the standard fedora or RHEL installer as another profile or choice a > non-K12LTSP user has to look at. Except this is a Live install, not a traditional Anaconda install. There is NO WAY to select or deselect things to install. A Live install copies everything from the media onto the disk, a bit-for-bit filesystem copy. Warren From balmquist at mindfirestudios.com Mon Sep 8 17:43:02 2008 From: balmquist at mindfirestudios.com (Almquist Burke) Date: Mon, 8 Sep 2008 12:43:02 -0500 Subject: [K12OSN] Re: K12Linux branding ideas In-Reply-To: <48C55E6C.9020202@redhat.com> References: <48B5BCC2.9080409@redhat.com> <48C54E17.4070001@redhat.com> <200809081220.26256.microman@cmosnetworks.com> <43D03768-E84E-4EF0-B1CA-35A8B4630358@mindfirestudios.com> <48C55E6C.9020202@redhat.com> Message-ID: <93D4269F-006C-457A-957A-E0F1316A7206@mindfirestudios.com> -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Sep 8, 2008, at 12:18 PM, Warren Togami wrote: > > Except this is a Live install, not a traditional Anaconda install. > There is NO WAY to select or deselect things to install. A Live > install copies everything from the media onto the disk, a bit-for- > bit filesystem copy. > > Warren > Good point, that's the advantage of the respin. I just meant it would be nice if they could maybe bury those options in an Anaconda installer too. IIRC, you have different "profiles" when you do a fedora install. K12edu and LTSP should be things you can check off on a standard install. Although I'm not sure why I'd use it if I could just use the live CD so I guess it's not as important. It might be nice for people already using Fedora to be able to "upgrade" to it by just installing a metapackage or two. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (Darwin) iEUEARECAAYFAkjFZCYACgkQxWV7OPa/g5GGYQCbBNdMHlEAxynPcMfIsCSuKH78 tOIAmPkxFRTqjFpUWO/QwmYtynsgbPQ= =cbJo -----END PGP SIGNATURE----- From moon at smbis.com Mon Sep 8 17:44:59 2008 From: moon at smbis.com (Moon) Date: Mon, 8 Sep 2008 13:44:59 -0400 Subject: [K12OSN] Re: K12Linux branding ideas In-Reply-To: <48C557BA.8000201@redhat.com> References: <48B5BCC2.9080409@redhat.com><48C54E17.4070001@redhat.com> <200809081220.26256.microman@cmosnetworks.com> <48C557BA.8000201@redhat.com> Message-ID: <86E0BFCCFA47415687A8BCBED1FCE946@acerpc> I like that. Gives a clear name and release info... -----Original Message----- From: Warren Togami [mailto:wtogami at redhat.com] Sent: Monday, September 08, 2008 12:50 PM To: Support list for open source software in schools.; Development discussion of K12Linux Subject: Re: [K12OSN] Re: K12Linux branding ideas How about: K12Linux Terminal Server F9 Beta 2 K12Linux Terminal Server F9 K12Linux Terminal Server F10 K12Linux Terminal Server EL6 Warren _______________________________________________ K12OSN mailing list K12OSN at redhat.com https://www.redhat.com/mailman/listinfo/k12osn For more info see From dyoung at mesd.k12.or.us Mon Sep 8 17:56:09 2008 From: dyoung at mesd.k12.or.us (Dan Young) Date: Mon, 8 Sep 2008 10:56:09 -0700 Subject: [K12OSN] Re: K12Linux branding ideas In-Reply-To: <48C557BA.8000201@redhat.com> References: <48B5BCC2.9080409@redhat.com> <48C54E17.4070001@redhat.com> <200809081220.26256.microman@cmosnetworks.com> <48C557BA.8000201@redhat.com> Message-ID: <994441ae0809081056r40679d82r758e6d026389481b@mail.gmail.com> On Mon, Sep 8, 2008 at 9:50 AM, Warren Togami wrote: > K12Linux Terminal Server F9 Beta 2 > K12Linux Terminal Server F9 > K12Linux Terminal Server F10 > K12Linux Terminal Server EL6 I prefer this (with or without "Live") over any variation on LTSP Server; which expands to: Linux Terminal Server Project Server e.g. from the Dept. of Redundancy Dept. -- Dan Young Multnomah ESD - Technology Services 503-257-1562 From wtogami at redhat.com Mon Sep 8 18:30:37 2008 From: wtogami at redhat.com (Warren Togami) Date: Mon, 08 Sep 2008 14:30:37 -0400 Subject: [K12OSN] K12Linux Logo Ideas Message-ID: <48C56F4D.6090802@redhat.com> http://people.redhat.com/duffy/tmp/k12ideas.png Maureen Duffy, leader of the Fedora Art team and Interaction Designer at Red Hat worked on these mockups for a new K12Linux logo. This would be for the LDM login screen, with an attractive but subtle blue background behind it. How do people feel about the different options here? http://people.redhat.com/duffy/tmp/k12-white_bg_ex.png Here is an example of the same logo with a white background, for the Trac top-left logo and print on paper. Warren Togami wtogami at redhat.com From moon at smbis.com Mon Sep 8 19:08:01 2008 From: moon at smbis.com (Moon) Date: Mon, 8 Sep 2008 15:08:01 -0400 Subject: [K12OSN] K12Linux Logo Ideas In-Reply-To: <48C56F4D.6090802@redhat.com> References: <48C56F4D.6090802@redhat.com> Message-ID: Warren, I like the image in image 'e' with a couple small changes. Keep the image with the two children as it provides good imagery of the smaller kid (K) to the larger kid (12) with the 'K12' characters within the image. However, I think the 'LINUX' should remain separate from and to the right, with the 'L' capitalized and the remainder lower case. As for foreground / background colors, the image and background colors should flip between the blues and white depending on background being used; for example is the background is to be white then the image should use the darker shades of blue, if the background is to be bluish, then the image should be lighter blues and white. Charlie -----Original Message----- From: Warren Togami [mailto:wtogami at redhat.com] Sent: Monday, September 08, 2008 02:31 PM To: Support list for opensource software in schools.; Development discussion of K12Linux Subject: [K12OSN] K12Linux Logo Ideas http://people.redhat.com/duffy/tmp/k12ideas.png Maureen Duffy, leader of the Fedora Art team and Interaction Designer at Red Hat worked on these mockups for a new K12Linux logo. This would be for the LDM login screen, with an attractive but subtle blue background behind it. How do people feel about the different options here? http://people.redhat.com/duffy/tmp/k12-white_bg_ex.png Here is an example of the same logo with a white background, for the Trac top-left logo and print on paper. Warren Togami wtogami at redhat.com _______________________________________________ K12OSN mailing list K12OSN at redhat.com https://www.redhat.com/mailman/listinfo/k12osn For more info see From tom.hoffman at gmail.com Mon Sep 8 19:23:34 2008 From: tom.hoffman at gmail.com (Tom Hoffman) Date: Mon, 8 Sep 2008 12:23:34 -0700 Subject: [K12OSN] Re: K12Linux branding ideas In-Reply-To: <994441ae0809081056r40679d82r758e6d026389481b@mail.gmail.com> References: <48B5BCC2.9080409@redhat.com> <48C54E17.4070001@redhat.com> <200809081220.26256.microman@cmosnetworks.com> <48C557BA.8000201@redhat.com> <994441ae0809081056r40679d82r758e6d026389481b@mail.gmail.com> Message-ID: <92de6c880809081223l696f4850ic949c337beea2956@mail.gmail.com> On Mon, Sep 8, 2008 at 10:56 AM, Dan Young wrote: > On Mon, Sep 8, 2008 at 9:50 AM, Warren Togami wrote: >> K12Linux Terminal Server F9 Beta 2 >> K12Linux Terminal Server F9 >> K12Linux Terminal Server F10 >> K12Linux Terminal Server EL6 > > I prefer this (with or without "Live") over any variation on LTSP > Server; which expands to: > Linux Terminal Server Project Server > > e.g. from the Dept. of Redundancy Dept. Yes, -1 for redundancy. --Tom From henryhartley at westat.com Mon Sep 8 20:23:55 2008 From: henryhartley at westat.com (Henry Hartley) Date: Mon, 8 Sep 2008 16:23:55 -0400 Subject: [K12OSN] K12Linux Logo Ideas In-Reply-To: Message-ID: <62432006F5965C42BAEC4EA29286EE0507AD056C1D@EX-CMS01.westat.com> Moon wrote: >> >> However, I think the 'LINUX' should remain separate from and to >> the right, with the 'L' capitalized and the remainder lower case. I also like them, in general. My first thought was that I'd like to at least see them with Linux in mixed case. -- Henry From nils at breun.nl Mon Sep 8 20:30:14 2008 From: nils at breun.nl (Nils Breunese) Date: Mon, 8 Sep 2008 22:30:14 +0200 Subject: [K12OSN] K12Linux Logo Ideas In-Reply-To: <48C56F4D.6090802@redhat.com> References: <48C56F4D.6090802@redhat.com> Message-ID: Warren Togami wrote: > http://people.redhat.com/duffy/tmp/k12ideas.png > > Maureen Duffy, leader of the Fedora Art team and Interaction > Designer at > Red Hat worked on these mockups for a new K12Linux logo. This would > be > for the LDM login screen, with an attractive but subtle blue > background > behind it. > > How do people feel about the different options here? > > http://people.redhat.com/duffy/tmp/k12-white_bg_ex.png > Here is an example of the same logo with a white background, for the > Trac top-left logo and print on paper. I know it was built use in for schools, but it's just as nice to use in a university student organisation (where I set it up), at home or in a business, so I never saw the point of the K12 prefix. But seeing how K12 doesn't really mean anything here in the Netherlands I guess I shouldn't make a lot of fuss about it. :o) Nils Breunese. From moon at smbis.com Mon Sep 8 21:03:48 2008 From: moon at smbis.com (Moon) Date: Mon, 8 Sep 2008 17:03:48 -0400 Subject: [K12OSN] K12Linux Logo Ideas In-Reply-To: References: <48C56F4D.6090802@redhat.com> Message-ID: <3911440CA4144A7DA5902C97934579BF@acerpc> I also plan to install LTSP in businesses as thin client technology is really a more secure and less support intensive solution to fat clients, especially in business environments where IT investment in both labor and material are limited. I have noticed that Canonical has seen this business opportunity and are exploiting it by both the business side terminal server product as well as the educational side terminal server product in the 8.04 release. I believe Red Hat would do well to realize that 'cloud computing' and 'Green' technology are on the radar screen and that businesses are looking to limit their carbon footprint and power consumption costs. Besides it is much easier and less costly for a company to manage fewer computing elements requiring upgrades/updates and desktop visits with fewer human resources... -----Original Message----- From: Nils Breunese [mailto:nils at breun.nl] Sent: Monday, September 08, 2008 04:30 PM To: Support list for open source software in schools. Subject: Re: [K12OSN] K12Linux Logo Ideas Warren Togami wrote: > http://people.redhat.com/duffy/tmp/k12ideas.png > > Maureen Duffy, leader of the Fedora Art team and Interaction > Designer at > Red Hat worked on these mockups for a new K12Linux logo. This would > be > for the LDM login screen, with an attractive but subtle blue > background > behind it. > > How do people feel about the different options here? > > http://people.redhat.com/duffy/tmp/k12-white_bg_ex.png > Here is an example of the same logo with a white background, for the > Trac top-left logo and print on paper. I know it was built use in for schools, but it's just as nice to use in a university student organisation (where I set it up), at home or in a business, so I never saw the point of the K12 prefix. But seeing how K12 doesn't really mean anything here in the Netherlands I guess I shouldn't make a lot of fuss about it. :o) Nils Breunese. _______________________________________________ K12OSN mailing list K12OSN at redhat.com https://www.redhat.com/mailman/listinfo/k12osn For more info see From brcisna at eazylivin.net Mon Sep 8 21:05:55 2008 From: brcisna at eazylivin.net (Barry R Cisna) Date: Mon, 08 Sep 2008 16:05:55 -0500 Subject: [K12OSN] bootup slow -- nfs server not responding Message-ID: <1220907955.1610.10.camel@localhost.localdomain> Hi Rob, Have you tried a second/different switch in your setup? Are you by chance using a managed switch. If not try a cheapo 12 port switch in your mix. Next for an easy 2nd thing to try would be to swap your eth0 and eth1 at /etc/sysconfig/network-scripts/eth0 eth1.conf and just swap your ethernet cables on the back of the server. You won't even have to open up the box:) See if you have any different conditions with this setup.Who knows you may have a funky nic that's layin down on you.This is an isolated network I would guess. This happened way back when to me, and had a network wire looped into the k12 network so two dhcp servers were running.All clients would boot slow but most would eventually come to login. Some would kernel panic. Just a thought. Keep the head scratching. Take Care, Barry Cisna From warren at togami.com Mon Sep 8 21:48:57 2008 From: warren at togami.com (Warren Togami) Date: Mon, 08 Sep 2008 17:48:57 -0400 Subject: [K12OSN] K12Linux Logo Ideas In-Reply-To: References: <48C56F4D.6090802@redhat.com> Message-ID: <48C59DC9.5050409@togami.com> Nils Breunese wrote: > I know it was built use in for schools, but it's just as nice to use in > a university student organisation (where I set it up), at home or in a > business, so I never saw the point of the K12 prefix. But seeing how K12 > doesn't really mean anything here in the Netherlands I guess I shouldn't > make a lot of fuss about it. :o) > > Nils Breunese. I am well aware that it is used in a lot more than just schools. For this reason, I am more in favor of the options that look more professional. "c" and "n" for example might look too immature to be dependable. Also keep in mind that this logo will be seen only on the default LDM screen and nowhere else. A deployment could replace the LDM theme with their own artwork if they really don't want to see "K12Linux". After a logo is chosen, we're doing mockups of the final LDM theme with an attractive blue background and a tiny "Sponsored by Red Hat" under the K12Linux. Warren Togami wtogami at redhat.com From peter at scheie.homedns.org Tue Sep 9 00:42:51 2008 From: peter at scheie.homedns.org (Peter Scheie) Date: Mon, 08 Sep 2008 19:42:51 -0500 Subject: [K12OSN] K12Linux Logo Ideas In-Reply-To: <48C59DC9.5050409@togami.com> References: <48C56F4D.6090802@redhat.com> <48C59DC9.5050409@togami.com> Message-ID: <48C5C68B.7070408@scheie.homedns.org> Warren Togami wrote: > Nils Breunese wrote: >> I know it was built use in for schools, but it's just as nice to use >> in a university student organisation (where I set it up), at home or >> in a business, so I never saw the point of the K12 prefix. But seeing >> how K12 doesn't really mean anything here in the Netherlands I guess I >> shouldn't make a lot of fuss about it. :o) >> >> Nils Breunese. > > I am well aware that it is used in a lot more than just schools. For > this reason, I am more in favor of the options that look more > professional. "c" and "n" for example might look too immature to be > dependable. > I agree about 'c' and 'n'. And I agree with Henry that I'd like to see how it looks with the 'inux' in lowercase. I do not like the fading from light top to dark bottom; I find it hard on the eyes and it makes me wonder if my screen is tilted wrong; it also tends to not look so good when printed on a black & white printer. I do like the silhouette of an adult (teacher) and two children (students), as I think it is also suggestive of the architecture of a 'large' server and 'smaller' thin clients (perhaps some sort of illusion could be worked up where it could appear to be either people or computers depending on how one looks at it). I also vote for 'K12Linux Terminal Server F9/EL6/etc.' Peter From microman at cmosnetworks.com Tue Sep 9 05:22:03 2008 From: microman at cmosnetworks.com (Terrell Prude' Jr.) Date: Tue, 9 Sep 2008 01:22:03 -0400 Subject: [K12OSN] K12Linux Logo Ideas In-Reply-To: <48C59DC9.5050409@togami.com> References: <48C56F4D.6090802@redhat.com> <48C59DC9.5050409@togami.com> Message-ID: <200809090122.03206.microman@cmosnetworks.com> On Monday 08 September 2008 17:48, Warren Togami wrote: > Nils Breunese wrote: > > I know it was built use in for schools, but it's just as nice to use in > > a university student organisation (where I set it up), at home or in a > > business, so I never saw the point of the K12 prefix. But seeing how K12 > > doesn't really mean anything here in the Netherlands I guess I shouldn't > > make a lot of fuss about it. :o) > > > > Nils Breunese. > > I am well aware that it is used in a lot more than just schools. For > this reason, I am more in favor of the options that look more > professional. "c" and "n" for example might look too immature to be > dependable. > > Also keep in mind that this logo will be seen only on the default LDM > screen and nowhere else. A deployment could replace the LDM theme with > their own artwork if they really don't want to see "K12Linux". > > After a logo is chosen, we're doing mockups of the final LDM theme with > an attractive blue background and a tiny "Sponsored by Red Hat" under > the K12Linux. I like F's lettering with G's logo. I also like L, as is. It's for the professional looking reasons. Ken "Helios" Starks wrote something a couple of years ago about how he converted a MS Windows-using business to K12LTSP 6 (the FC6-based one). I don't believe he had yet learned about EL, otherwise he presumably would've used that one (the conversion was a rush job due a BSA rape^H^H^H^Haudit). In addition to the few schools I've done, I once had a small business using K12LTSP 4.2EL. It worked great. Unfortunately the owner of it decided that he just *had* to have Microsoft Exchange Server and that nothing else would do...despite the fact that I had him on IMAP/SMTP email that worked great with Evolution. Basically, he let himself get seduced by InfoWorld, et. al. --TP From micha at arava.co.il Tue Sep 9 05:46:55 2008 From: micha at arava.co.il (Micha Silver) Date: Tue, 09 Sep 2008 08:46:55 +0300 Subject: [K12OSN] Re: K12Linux branding ideas In-Reply-To: <200809081259.30488.microman@cmosnetworks.com> References: <48B5BCC2.9080409@redhat.com> <48C557BA.8000201@redhat.com> <200809081259.30488.microman@cmosnetworks.com> Message-ID: <48C60DCF.9090200@arava.co.il> An HTML attachment was scrubbed... URL: From mel at melwade.com Tue Sep 9 11:31:09 2008 From: mel at melwade.com (Mel Wade) Date: Tue, 9 Sep 2008 04:31:09 -0700 Subject: [K12OSN] K12Linux Logo Ideas In-Reply-To: <200809090122.03206.microman@cmosnetworks.com> References: <48C56F4D.6090802@redhat.com> <48C59DC9.5050409@togami.com> <200809090122.03206.microman@cmosnetworks.com> Message-ID: <43080f460809090431l4c805821o6c0ba2ba3d78fe9@mail.gmail.com> I think the professional look is important. I like "i" for it's clean look. Images such as "a" and "c" with the four people with arms look "dorky" to me. Might appeal to a 1st grader but not much beyond that. The hand written font is "cutesy" but not professional and would not be as well received by my high school crowd as the lower elementary group. Also not as professional for those using it in a business enviornment. I like the "iconish" look of the rounded square. Seems more complete. The multiple people in "i" could mean school but also could be a business community if considered in that light. -- Mel Wade "The real problem is not whether machines think but whether men do." - BF Skinner http://www.melwade.com -------------- next part -------------- An HTML attachment was scrubbed... URL: From rob.owens at biochemfluidics.com Tue Sep 9 11:46:10 2008 From: rob.owens at biochemfluidics.com (Rob Owens) Date: Tue, 09 Sep 2008 07:46:10 -0400 Subject: [K12OSN] K12Linux Logo Ideas In-Reply-To: <48C59DC9.5050409@togami.com> References: <48C56F4D.6090802@redhat.com> <48C59DC9.5050409@togami.com> Message-ID: <48C66202.1090203@biochemfluidics.com> Warren Togami wrote: > Nils Breunese wrote: >> I know it was built use in for schools, but it's just as nice to use >> in a university student organisation (where I set it up), at home or >> in a business, so I never saw the point of the K12 prefix. But seeing >> how K12 doesn't really mean anything here in the Netherlands I guess I >> shouldn't make a lot of fuss about it. :o) >> >> Nils Breunese. > > I am well aware that it is used in a lot more than just schools. For > this reason, I am more in favor of the options that look more > professional. "c" and "n" for example might look too immature to be > dependable. > > Also keep in mind that this logo will be seen only on the default LDM > screen and nowhere else. A deployment could replace the LDM theme with > their own artwork if they really don't want to see "K12Linux". > > After a logo is chosen, we're doing mockups of the final LDM theme with > an attractive blue background and a tiny "Sponsored by Red Hat" under > the K12Linux. > I know you kind of shot down the possibility of having options for the installation, but lets imagine for a minute that that's still a possibility. The default installation could include a "professional" LDM screen and no Edu packages. There could be a question during the installation: "Install Educational Packages (for schools)?" -- answering "yes" will give you the Edu packages and an LDM screen more appropriate for schools. -Rob ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** From henryhartley at westat.com Tue Sep 9 12:47:11 2008 From: henryhartley at westat.com (Henry Hartley) Date: Tue, 9 Sep 2008 08:47:11 -0400 Subject: [K12OSN] Re: K12Linux branding ideas In-Reply-To: <48C60DCF.9090200@arava.co.il> Message-ID: <62432006F5965C42BAEC4EA29286EE0507AD056C20@EX-CMS01.westat.com> Micha Silver wrote > >> On Monday 08 September 2008 12:50, Warren Togami wrote: > >> How about: > >> K12Linux Terminal Server F9 Beta 2 > >> K12Linux Terminal Server F9 > >> 12Linux Terminal Server F10 > >> K12Linux Terminal Server EL6 > > I hope there are no copyright issues on the name "Terminal > Server". I think that MS has copyrighted "Terminal Services". Well, it would be a trademark issue, not copyright. The only thing a quick search of the USPTO trademark database (TESS) found when I searched for "Terminal Server" was "Simplify Terminal Server" registered to a company called Tricerat, Inc. in Columbia, Maryland. There were two other hits but they were abandoned 8 and 14 years ago respectively. http://tess2.uspto.gov/bin/showfield?f=doc&state=p3ttg5.2.1 I'm not a lawyer but I don't think the name "K12Linux Terminal Server" poses a risk to "Simplify Terminal Server" (although the software might, but that's a completely different matter). Interestingly, a Google search for "Simplify Terminal Server" on the Tricerat Web site produces zero hits. -- Henry From simpsond at leopards.k12.ar.us Tue Sep 9 12:47:30 2008 From: simpsond at leopards.k12.ar.us (Doug Simpson) Date: Tue, 09 Sep 2008 07:47:30 -0500 Subject: [K12OSN] PHP and variables Message-ID: <48C62A11.550C.0078.0@leopards.k12.ar.us> I know how to get data in from a form, but I need to know how to get a string converted from a letter variable to a number variable. Example: Say there are two choices and I am using radio buttons to select which choice the viewer wants. It stores the first choice as "a" and the second choice as "b". This I know how to do. So I would like to convert the a to 1 and the b to 1 and store them each in another variable of their own. I know how to get them into another variable, also. Now, I want to add up the number of "a"s and the number of "b"s . All I really need to know is how to convert a letter to a number in PHP. if choice=a then choice1num=1 <<< Message-ID: <62432006F5965C42BAEC4EA29286EE0507AD056C21@EX-CMS01.westat.com> Doug Simpson wrote: >> >> I know how to get data in from a form, but I need to know how to >> get a string converted from a letter variable to a number variable. >> >> Example: >> >> Say there are two choices and I am using radio buttons to select >> which choice the viewer wants. >> >> It stores the first choice as "a" and the second choice as "b". >> This I know how to do. >> >> So I would like to convert the a to 1 and the b to 1 and store >> them each in another variable of their own. I know how to get >> them into another variable, also. >> >> Now, I want to add up the number of "a"s and the number of "b"s . >> >> All I really need to know is how to convert a letter to a number >> in PHP. >> >> if choice=a then choice1num=1 <<<> if choice=b then choice2num=1 <<<> echo choice1num >> echo choice2num It isn't completely clear to me what you want to do. If you have letters a, b, c, and possibly as far as z, then you can use ord() and subtract 60. Since ord("a") will return 61, you'll end up with a 1 for a, 2 for b, etc. Is that what you mean? Or do you want to cound the number of occurrences of a, b, c, etc.? If so, then convert to a hash. Inside a loop that goes through all the selections made, have something like this: $count[$choice]++ ; When you're done, $count["a"] will be the number of a's, $count["b"] the number of b's, etc. The last part of your question (the "All I really need to know") is the least clear part of your email. Perhaps you can explain what you're trying to do, rather than be quite so specific about how to do it. -- Henry From webmaster at vol.org Tue Sep 9 14:42:39 2008 From: webmaster at vol.org (george kocke) Date: Tue, 09 Sep 2008 09:42:39 -0500 Subject: [K12OSN] bootup slow -- nfs server not responding In-Reply-To: <48C53EE4.1080504@biochemfluidics.com> References: <48C53EE4.1080504@biochemfluidics.com> Message-ID: <48C68B5F.6020508@vol.org> Rob Owens wrote: > The reason I upgraded the RAM is because I've been getting slow boot > times on the thin clients, with the message "nfs server not responding" > showing up at least 10 times during the boot process. The clients > eventually boot successfully. The upgrade didn't seem to help, but hey, > it was cheap and easy to try. Sorry if anyone else has responded with this, but the URL below helped me when I ran into this problem: http://wiki.ltsp.org/twiki/bin/view/Ltsp/NFS#NFS_Server_not_responding This message has been scanned by the Internet Service Departments Virus/Spam filter. From simpsond at leopards.k12.ar.us Tue Sep 9 14:46:14 2008 From: simpsond at leopards.k12.ar.us (Doug Simpson) Date: Tue, 09 Sep 2008 09:46:14 -0500 Subject: [K12OSN] PHP and variables In-Reply-To: <62432006F5965C42BAEC4EA29286EE0507AD056C21@EX-CMS01.westat.com> References: <48C62A11.550C.0078.0@leopards.k12.ar.us> <62432006F5965C42BAEC4EA29286EE0507AD056C21@EX-CMS01.westat.com> Message-ID: <48C645E5.550C.0078.0@leopards.k12.ar.us> I am trying to make a small form for elementary kids to choose from several items, like voting on a favorite book, for example. Radio buttons are clicked and that sets a variable with a letter, "a" for the first choice and "b" for the second choice for example and set them in a variable called "$choice". Choice will contain either "a" or "b". Now, do an if statement, like: if $choice="a" then $chosena=1 if $choice="b" then $chosenb=1 now, I want to do something like: $chosenatotal=$chosena+1 ($chosena should contain a numerical value, 1 or 0 depending on the choice made) display the total for a $chosenbtotal=$chosenb+1 ($chosenb should contain a numerical value, 1 or 0 depending on the choice made) display the total for b I know how to display the totals, too using the system function. I just need it to add the $chosenxtotal. Each trip through the script will either increment $chosenatotal or $chosenbtotal depending on which choice was made. I hope this helps you to understand. . . basically I just need to know how to convert a letter variable to a numeric variable. The radio button will only allow you to chose one or the other. Don't waste too much time on it. This is just something I am playing with for a teacher here at the school. Doug Doug Simpson Technology Specialist De Queen Public Schools De Queen, AR simpsond at leopards.k12.ar.us "A Dollar Saved is a Dollar Earned" >>> Henry Hartley 9/9/2008 8:06 AM >>> Doug Simpson wrote: >> >> I know how to get data in from a form, but I need to know how to >> get a string converted from a letter variable to a number variable. >> >> Example: >> >> Say there are two choices and I am using radio buttons to select >> which choice the viewer wants. >> >> It stores the first choice as "a" and the second choice as "b". >> This I know how to do. >> >> So I would like to convert the a to 1 and the b to 1 and store >> them each in another variable of their own. I know how to get >> them into another variable, also. >> >> Now, I want to add up the number of "a"s and the number of "b"s . >> >> All I really need to know is how to convert a letter to a number >> in PHP. >> >> if choice=a then choice1num=1 <<<> if choice=b then choice2num=1 <<<> echo choice1num >> echo choice2num It isn't completely clear to me what you want to do. If you have letters a, b, c, and possibly as far as z, then you can use ord() and subtract 60. Since ord("a") will return 61, you'll end up with a 1 for a, 2 for b, etc. Is that what you mean? Or do you want to cound the number of occurrences of a, b, c, etc.? If so, then convert to a hash. Inside a loop that goes through all the selections made, have something like this: $count[$choice]++ ; When you're done, $count["a"] will be the number of a's, $count["b"] the number of b's, etc. The last part of your question (the "All I really need to know") is the least clear part of your email. Perhaps you can explain what you're trying to do, rather than be quite so specific about how to do it. -- Henry _______________________________________________ K12OSN mailing list K12OSN at redhat.com https://www.redhat.com/mailman/listinfo/k12osn For more info see From rasher at paragould.k12.ar.us Tue Sep 9 16:05:46 2008 From: rasher at paragould.k12.ar.us (Rob Asher) Date: Tue, 09 Sep 2008 11:05:46 -0500 Subject: [K12OSN] PHP and variables In-Reply-To: <48C645E5.550C.0078.0@leopards.k12.ar.us> References: <48C62A11.550C.0078.0@leopards.k12.ar.us> <62432006F5965C42BAEC4EA29286EE0507AD056C21@EX-CMS01.westat.com> <48C645E5.550C.0078.0@leopards.k12.ar.us> Message-ID: <48C65842.0172.0037.0@paragould.k12.ar.us> If you're just wanting a counter, something like this might work for you: switch ($choice) { case "a": $chosenatotal=$chosenatotal+1; break; case "b": $chosenbtotal=$chosenbtotal+1; break; } HTH, Rob ------------------------------------- Rob Asher Network Systems Technician Paragould School District (870)236-7744 Ext. 169 >>> "Doug Simpson" 9/9/2008 9:46 AM >>> I am trying to make a small form for elementary kids to choose from several items, like voting on a favorite book, for example. Radio buttons are clicked and that sets a variable with a letter, "a" for the first choice and "b" for the second choice for example and set them in a variable called "$choice". Choice will contain either "a" or "b". Now, do an if statement, like: if $choice="a" then $chosena=1 if $choice="b" then $chosenb=1 now, I want to do something like: $chosenatotal=$chosena+1 ($chosena should contain a numerical value, 1 or 0 depending on the choice made) display the total for a $chosenbtotal=$chosenb+1 ($chosenb should contain a numerical value, 1 or 0 depending on the choice made) display the total for b I know how to display the totals, too using the system function. I just need it to add the $chosenxtotal. Each trip through the script will either increment $chosenatotal or $chosenbtotal depending on which choice was made. I hope this helps you to understand. . . basically I just need to know how to convert a letter variable to a numeric variable. The radio button will only allow you to chose one or the other. Don't waste too much time on it. This is just something I am playing with for a teacher here at the school. Doug Doug Simpson Technology Specialist De Queen Public Schools De Queen, AR simpsond at leopards.k12.ar.us "A Dollar Saved is a Dollar Earned" >>> Henry Hartley 9/9/2008 8:06 AM >>> Doug Simpson wrote: >> >> I know how to get data in from a form, but I need to know how to >> get a string converted from a letter variable to a number variable. >> >> Example: >> >> Say there are two choices and I am using radio buttons to select >> which choice the viewer wants. >> >> It stores the first choice as "a" and the second choice as "b". >> This I know how to do. >> >> So I would like to convert the a to 1 and the b to 1 and store >> them each in another variable of their own. I know how to get >> them into another variable, also. >> >> Now, I want to add up the number of "a"s and the number of "b"s . >> >> All I really need to know is how to convert a letter to a number >> in PHP. >> >> if choice=a then choice1num=1 <<<> if choice=b then choice2num=1 <<<> echo choice1num >> echo choice2num It isn't completely clear to me what you want to do. If you have letters a, b, c, and possibly as far as z, then you can use ord() and subtract 60. Since ord("a") will return 61, you'll end up with a 1 for a, 2 for b, etc. Is that what you mean? Or do you want to cound the number of occurrences of a, b, c, etc.? If so, then convert to a hash. Inside a loop that goes through all the selections made, have something like this: $count[$choice]++ ; When you're done, $count["a"] will be the number of a's, $count["b"] the number of b's, etc. The last part of your question (the "All I really need to know") is the least clear part of your email. Perhaps you can explain what you're trying to do, rather than be quite so specific about how to do it. -- Henry _______________________________________________ K12OSN mailing list K12OSN at redhat.com https://www.redhat.com/mailman/listinfo/k12osn For more info see _______________________________________________ K12OSN mailing list K12OSN at redhat.com https://www.redhat.com/mailman/listinfo/k12osn For more info see ---------- This message has been scanned for viruses and dangerous content by the Paragould School District MailScanner, and is believed to be clean. ---------- This message has been scanned for viruses and dangerous content by the Paragould School District MailScanner, and is believed to be clean. From microman at cmosnetworks.com Tue Sep 9 16:29:35 2008 From: microman at cmosnetworks.com (Terrell Prude' Jr.) Date: Tue, 9 Sep 2008 12:29:35 -0400 Subject: [K12OSN] Re: K12Linux branding ideas In-Reply-To: <62432006F5965C42BAEC4EA29286EE0507AD056C20@EX-CMS01.westat.com> References: <62432006F5965C42BAEC4EA29286EE0507AD056C20@EX-CMS01.westat.com> Message-ID: <200809091229.35812.microman@cmosnetworks.com> On Tuesday 09 September 2008 08:47, Henry Hartley wrote: > Micha Silver wrote > > > >> On Monday 08 September 2008 12:50, Warren Togami wrote: > > >> How about: > > >> K12Linux Terminal Server F9 Beta 2 > > >> K12Linux Terminal Server F9 > > >> 12Linux Terminal Server F10 > > >> K12Linux Terminal Server EL6 > > > > I hope there are no copyright issues on the name "Terminal > > Server". I think that MS has copyrighted "Terminal Services". > > Well, it would be a trademark issue, not copyright. The only thing a quick > search of the USPTO trademark database (TESS) found when I searched for > "Terminal Server" was "Simplify Terminal Server" registered to a company > called Tricerat, Inc. in Columbia, Maryland. There were two other hits but > they were abandoned 8 and 14 years ago respectively. > > http://tess2.uspto.gov/bin/showfield?f=doc&state=p3ttg5.2.1 > > I'm not a lawyer but I don't think the name "K12Linux Terminal Server" > poses a risk to "Simplify Terminal Server" (although the software might, > but that's a completely different matter). Interestingly, a Google search > for "Simplify Terminal Server" on the Tricerat Web site produces zero hits. I don't believe it's a problem. The expression "terminal server" has been for decades, and still is, in wide use (just ask any network engineer) and is what's called in legalese a "generic term". That's why Microsoft settled so quickly with Lindows (for lots of money!) back when they found out they were about to lose their "Windows" trademark. Remember a few years back when Microsoft tried to sue Lindows out of existence? :-) The judge had already made clear his position on the matter and was just about to hand down his official ruling. The expression "Microsoft Windows" is trademarkable, sure...but not just "windows". The same applies to the word "office" (think OpenOffice and WordPerfect Office here). Thus, "Microsoft Terminal Server" or "Microsoft Terminal Services" is trademarkable. But not "terminal server" or "terminal services". We're safe. --TP From simpsond at leopards.k12.ar.us Tue Sep 9 16:41:00 2008 From: simpsond at leopards.k12.ar.us (Doug Simpson) Date: Tue, 09 Sep 2008 11:41:00 -0500 Subject: [K12OSN] PHP and variables In-Reply-To: <48C65842.0172.0037.0@paragould.k12.ar.us> References: <48C62A11.550C.0078.0@leopards.k12.ar.us> <62432006F5965C42BAEC4EA29286EE0507AD056C21@EX-CMS01.westat.com> <48C645E5.550C.0078.0@leopards.k12.ar.us> <48C65842.0172.0037.0@paragould.k12.ar.us> Message-ID: <48C660CC.550C.0078.0@leopards.k12.ar.us> I can't get this to add them up. Here is my modification to make it display the results. . . It does echo the 1's, but it does not add them together to increment. Your example does give the 1 in place of the a or b in the appropriate variable, but it won't increment them each time. Thanks again for your assistance! Doug Doug Simpson Technology Specialist De Queen Public Schools De Queen, AR simpsond at leopards.k12.ar.us "A Dollar Saved is a Dollar Earned" >>> "Rob Asher" 9/9/2008 11:05 AM >>> If you're just wanting a counter, something like this might work for you: switch ($choice) { case "a": $chosenatotal=$chosenatotal+1; break; case "b": $chosenbtotal=$chosenbtotal+1; break; } HTH, Rob ------------------------------------- Rob Asher Network Systems Technician Paragould School District (870)236-7744 Ext. 169 >>> "Doug Simpson" 9/9/2008 9:46 AM >>> I am trying to make a small form for elementary kids to choose from several items, like voting on a favorite book, for example. Radio buttons are clicked and that sets a variable with a letter, "a" for the first choice and "b" for the second choice for example and set them in a variable called "$choice". Choice will contain either "a" or "b". Now, do an if statement, like: if $choice="a" then $chosena=1 if $choice="b" then $chosenb=1 now, I want to do something like: $chosenatotal=$chosena+1 ($chosena should contain a numerical value, 1 or 0 depending on the choice made) display the total for a $chosenbtotal=$chosenb+1 ($chosenb should contain a numerical value, 1 or 0 depending on the choice made) display the total for b I know how to display the totals, too using the system function. I just need it to add the $chosenxtotal. Each trip through the script will either increment $chosenatotal or $chosenbtotal depending on which choice was made. I hope this helps you to understand. . . basically I just need to know how to convert a letter variable to a numeric variable. The radio button will only allow you to chose one or the other. Don't waste too much time on it. This is just something I am playing with for a teacher here at the school. Doug Doug Simpson Technology Specialist De Queen Public Schools De Queen, AR simpsond at leopards.k12.ar.us "A Dollar Saved is a Dollar Earned" >>> Henry Hartley 9/9/2008 8:06 AM >>> Doug Simpson wrote: >> >> I know how to get data in from a form, but I need to know how to >> get a string converted from a letter variable to a number variable. >> >> Example: >> >> Say there are two choices and I am using radio buttons to select >> which choice the viewer wants. >> >> It stores the first choice as "a" and the second choice as "b". >> This I know how to do. >> >> So I would like to convert the a to 1 and the b to 1 and store >> them each in another variable of their own. I know how to get >> them into another variable, also. >> >> Now, I want to add up the number of "a"s and the number of "b"s . >> >> All I really need to know is how to convert a letter to a number >> in PHP. >> >> if choice=a then choice1num=1 <<<> if choice=b then choice2num=1 <<<> echo choice1num >> echo choice2num It isn't completely clear to me what you want to do. If you have letters a, b, c, and possibly as far as z, then you can use ord() and subtract 60. Since ord("a") will return 61, you'll end up with a 1 for a, 2 for b, etc. Is that what you mean? Or do you want to cound the number of occurrences of a, b, c, etc.? If so, then convert to a hash. Inside a loop that goes through all the selections made, have something like this: $count[$choice]++ ; When you're done, $count["a"] will be the number of a's, $count["b"] the number of b's, etc. The last part of your question (the "All I really need to know") is the least clear part of your email. Perhaps you can explain what you're trying to do, rather than be quite so specific about how to do it. -- Henry _______________________________________________ K12OSN mailing list K12OSN at redhat.com https://www.redhat.com/mailman/listinfo/k12osn For more info see _______________________________________________ K12OSN mailing list K12OSN at redhat.com https://www.redhat.com/mailman/listinfo/k12osn For more info see ---------- This message has been scanned for viruses and dangerous content by the Paragould School District MailScanner, and is believed to be clean. ---------- This message has been scanned for viruses and dangerous content by the Paragould School District MailScanner, and is believed to be clean. _______________________________________________ K12OSN mailing list K12OSN at redhat.com https://www.redhat.com/mailman/listinfo/k12osn For more info see From henryhartley at westat.com Tue Sep 9 17:00:53 2008 From: henryhartley at westat.com (Henry Hartley) Date: Tue, 9 Sep 2008 13:00:53 -0400 Subject: [K12OSN] PHP and variables In-Reply-To: <48C660CC.550C.0078.0@leopards.k12.ar.us> Message-ID: <62432006F5965C42BAEC4EA29286EE0507AD056C29@EX-CMS01.westat.com> Doug Simpson wrote: >> I can't get this to add them up. Are you talking about them adding to a running total each time the page is submitted? If so, you'll need something other than regular variables. If you want each submissions from a user to be added to previous submissions, then you need to replace your $chosenatotal, etc. variables with session variables. I still would use a hash (that's a associative array when it's at home) rather than all that switch code. $_SESSION["chosentotal"][$choice]++ ; will do the same thing in one line as your case statement does and if you add a third choice you won't need to add any code. Then you can print them all with this: ksort($_SESSION["chosentotal"]) ; // optionally sort them first foreach ( array_keys($_SESSION["chosentotal"]) as $choice => $count ) { print "$choice = $count
\n" ; } -- Henry From rob.owens at biochemfluidics.com Tue Sep 9 17:43:26 2008 From: rob.owens at biochemfluidics.com (Rob Owens) Date: Tue, 09 Sep 2008 13:43:26 -0400 Subject: [K12OSN] bootup slow -- nfs server not responding In-Reply-To: <48C68B5F.6020508@vol.org> References: <48C53EE4.1080504@biochemfluidics.com> <48C68B5F.6020508@vol.org> Message-ID: <48C6B5BE.4090108@biochemfluidics.com> george kocke wrote: > Rob Owens wrote: > >> The reason I upgraded the RAM is because I've been getting slow boot >> times on the thin clients, with the message "nfs server not responding" >> showing up at least 10 times during the boot process. The clients >> eventually boot successfully. The upgrade didn't seem to help, but hey, >> it was cheap and easy to try. > > Sorry if anyone else has responded with this, but the URL below helped > me when I ran into this problem: > > http://wiki.ltsp.org/twiki/bin/view/Ltsp/NFS#NFS_Server_not_responding > Thanks! I will try this out later this week for sure and report back. -Rob ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** From simpsond at leopards.k12.ar.us Tue Sep 9 18:24:16 2008 From: simpsond at leopards.k12.ar.us (Doug Simpson) Date: Tue, 09 Sep 2008 13:24:16 -0500 Subject: [K12OSN] PHP and variables In-Reply-To: <62432006F5965C42BAEC4EA29286EE0507AD056C29@EX-CMS01.westat.com> References: <48C660CC.550C.0078.0@leopards.k12.ar.us> <62432006F5965C42BAEC4EA29286EE0507AD056C29@EX-CMS01.westat.com> Message-ID: <48C67900.550C.0078.0@leopards.k12.ar.us> Yes. They will increment each time the page is submitted. It posts to itself so it automatically reloads every time you hit the submit button. The form collects the data and passes it to the php portion with the form action. The form action posts back to the same script. This causes the page to just reload after you hit submit and it is supposed to tabulate each choice and give a running total of each choice. Don't waste too much of your time on it. . . it is just a for-fun thing for one of my teachers. Thanks for your insight anyway! Will keep plugging away. So far, I have received several examples of the string conversion and each works about the same, but none of then actually add each trip through the script. . . Doug Doug Simpson Technology Specialist De Queen Public Schools De Queen, AR simpsond at leopards.k12.ar.us "A Dollar Saved is a Dollar Earned" >>> Henry Hartley 9/9/2008 12:00 PM >>> Doug Simpson wrote: >> I can't get this to add them up. Are you talking about them adding to a running total each time the page is submitted? If so, you'll need something other than regular variables. If you want each submissions from a user to be added to previous submissions, then you need to replace your $chosenatotal, etc. variables with session variables. I still would use a hash (that's a associative array when it's at home) rather than all that switch code. $_SESSION["chosentotal"][$choice]++ ; will do the same thing in one line as your case statement does and if you add a third choice you won't need to add any code. Then you can print them all with this: ksort($_SESSION["chosentotal"]) ; // optionally sort them first foreach ( array_keys($_SESSION["chosentotal"]) as $choice => $count ) { print "$choice = $count
\n" ; } -- Henry _______________________________________________ K12OSN mailing list K12OSN at redhat.com https://www.redhat.com/mailman/listinfo/k12osn For more info see From henryhartley at westat.com Tue Sep 9 18:42:01 2008 From: henryhartley at westat.com (Henry Hartley) Date: Tue, 9 Sep 2008 14:42:01 -0400 Subject: [K12OSN] PHP and variables In-Reply-To: <48C67900.550C.0078.0@leopards.k12.ar.us> Message-ID: <62432006F5965C42BAEC4EA29286EE0507AD056C31@EX-CMS01.westat.com> Doug Simpson wrote: >> Yes. They will increment each time the page is submitted. It >> posts to itself so it automatically reloads every time you hit >> the submit button. The form collects the data and passes it to >> the php portion with the form action. The form action posts back >> to the same script. This causes the page to just reload after >> you hit submit and it is supposed to tabulate each choice and >> give a running total of each choice. Then you must use a session variable to hold the values between each submission. Each time you submit the form and issue a POST (or GET), the PHP runs again. Any variables that are used only exist during that one running of the script. They go away again as soon as it's done. So, replace $chosenatotal with $_SESSION['chosenatotal'] (and the "b" version) and see what happens. You'll need session_start() at the top of your script, as well. -- Henry From wtogami at redhat.com Tue Sep 9 19:23:08 2008 From: wtogami at redhat.com (Warren Togami) Date: Tue, 09 Sep 2008 15:23:08 -0400 Subject: [K12OSN] K12Linux Logos Round 2 Message-ID: <48C6CD1C.2000305@redhat.com> Hey folks, http://people.redhat.com/duffy/tmp/k12ideas2.png K12Linux Logos Round 2 Maureen Duffy read through all the suggestions and created this updated page of K12Linux logo options. Please provide further opinions here. One possible consideration for the logo is cultural considerations. We might want to steer away from logos with four people because in Asian cultures "four" is an unlucky number with similar pronunciation and association with "death". I asked the nearest Japanese guy to my desk and he thinks it isn't a problem. OTOH I asked a Taiwanese-American and she thought it could possibly be a problem. A sample size of two remains inconclusive. Warren Togami wtogami at redhat.com From moon at smbis.com Tue Sep 9 19:39:46 2008 From: moon at smbis.com (Moon) Date: Tue, 9 Sep 2008 15:39:46 -0400 Subject: [K12OSN] K12Linux Logos Round 2 In-Reply-To: <48C6CD1C.2000305@redhat.com> References: <48C6CD1C.2000305@redhat.com> Message-ID: <83A50DC1FDED4A06A90B6336D3945F99@acerpc> I like 'q' and 'r' as they covey the message clearly, however I prefer 'r' over 'q' due to the case. The imagery of the K to 12 in the small child to the larger child with the lettering K12 clearly conveys the K through 12 school focus, while the separate Linux clearly represents the host platform OS. To me the three character image kind of looks like an unfocused Taj Mahal and the four character image is a little too busy... -----Original Message----- From: Warren Togami [mailto:wtogami at redhat.com] Sent: Tuesday, September 09, 2008 03:23 PM To: k12osn at redhat.com; Development discussion of K12Linux Subject: [K12OSN] K12Linux Logos Round 2 Hey folks, http://people.redhat.com/duffy/tmp/k12ideas2.png K12Linux Logos Round 2 Maureen Duffy read through all the suggestions and created this updated page of K12Linux logo options. Please provide further opinions here. One possible consideration for the logo is cultural considerations. We might want to steer away from logos with four people because in Asian cultures "four" is an unlucky number with similar pronunciation and association with "death". I asked the nearest Japanese guy to my desk and he thinks it isn't a problem. OTOH I asked a Taiwanese-American and she thought it could possibly be a problem. A sample size of two remains inconclusive. Warren Togami wtogami at redhat.com _______________________________________________ K12OSN mailing list K12OSN at redhat.com https://www.redhat.com/mailman/listinfo/k12osn For more info see From ssh at tranquility.net Tue Sep 9 20:38:35 2008 From: ssh at tranquility.net (ssh at tranquility.net) Date: Tue, 9 Sep 2008 15:38:35 -0500 (CDT) Subject: [K12OSN] Lotus Notes client through K12LTSP? In-Reply-To: <62432006F5965C42BAEC4EA29286EE0507AD056C20@EX-CMS01.westat.com> References: <62432006F5965C42BAEC4EA29286EE0507AD056C20@EX-CMS01.westat.com> Message-ID: I'm experimenting with using K12LTSP without dumb clients. It works well (or course) but I'm running into a problem that I'm pretty sure is simple, but I'm looking right past it. I'm trying to get the native Lotus Notes client working. I'm using Wine, and the Windows 6.5.4 client works fine (actually works better than it does in Windows, as far as reliablility). I routinely use the Windows client, I'm trying to get it working through a local K12LTSP box. The K12LTSP (Centos 5.x, all updates) server (and all potential clients) are behind the same firewall, so it's local firewall is disabled. Which is what's puzzling me. It needs port 1352. I don't see anthing in /var/log/messages. TIA, Scott S. From lesmikesell at gmail.com Tue Sep 9 20:56:53 2008 From: lesmikesell at gmail.com (Les Mikesell) Date: Tue, 09 Sep 2008 15:56:53 -0500 Subject: [K12OSN] Lotus Notes client through K12LTSP? In-Reply-To: References: <62432006F5965C42BAEC4EA29286EE0507AD056C20@EX-CMS01.westat.com> Message-ID: <48C6E315.9000705@gmail.com> ssh at tranquility.net wrote: > I'm experimenting with using K12LTSP without dumb clients. It works well > (or course) but I'm running into a problem that I'm pretty sure is > simple, but I'm looking right past it. > > I'm trying to get the native Lotus Notes client working. I'm using Wine, > and the Windows 6.5.4 client works fine (actually works better than it > does in Windows, as far as reliablility). I routinely use the Windows > client, I'm trying to get it working through a local K12LTSP box. > > The K12LTSP (Centos 5.x, all updates) server (and all potential clients) > are behind the same firewall, so it's local firewall is disabled. Which > is what's puzzling me. It needs port 1352. I don't see anthing in > /var/log/messages. How does it fail? One brute-force way to debug things is to run strace and grovel through the system calls to find things like file open failures. -- Les Mikesell lesmikesell at gmail.com From accessys at smart.net Tue Sep 9 21:37:38 2008 From: accessys at smart.net (Accessys@smart.net) Date: Tue, 9 Sep 2008 17:37:38 -0400 (EDT) Subject: [K12OSN] K12Linux Logos Round 2 In-Reply-To: <83A50DC1FDED4A06A90B6336D3945F99@acerpc> References: <48C6CD1C.2000305@redhat.com> <83A50DC1FDED4A06A90B6336D3945F99@acerpc> Message-ID: my vote is "M" or "6" or the one above "M" that isn't marked. simple and immediately recognizable, and usable in all situations. Bob On Tue, 9 Sep 2008, Moon wrote: > I like 'q' and 'r' as they covey the message clearly, however I prefer 'r' > over 'q' due to the case. > > The imagery of the K to 12 in the small child to the larger child with the > lettering K12 clearly conveys the K through 12 school focus, while the > separate Linux clearly represents the host platform OS. > > To me the three character image kind of looks like an unfocused Taj Mahal > and the four character image is a little too busy... > > -----Original Message----- > From: Warren Togami [mailto:wtogami at redhat.com] > Sent: Tuesday, September 09, 2008 03:23 PM > To: k12osn at redhat.com; Development discussion of K12Linux > Subject: [K12OSN] K12Linux Logos Round 2 > > Hey folks, > > http://people.redhat.com/duffy/tmp/k12ideas2.png > K12Linux Logos Round 2 > > Maureen Duffy read through all the suggestions and created this updated > page of K12Linux logo options. Please provide further opinions here. > > One possible consideration for the logo is cultural considerations. We > might want to steer away from logos with four people because in Asian > cultures "four" is an unlucky number with similar pronunciation and > association with "death". I asked the nearest Japanese guy to my desk > and he thinks it isn't a problem. OTOH I asked a Taiwanese-American and > she thought it could possibly be a problem. A sample size of two > remains inconclusive. > > Warren Togami > wtogami at redhat.com > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > - end ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ occasionally a true patriot must defend his country from its' government +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ "They that can give up essential liberty to obtain a little temporary safety deserve Neither liberty nor safety", Benjamin Franklin - - - - - - - - - - - - - - - - - - - ASCII Ribbon Campaign. . . . . . . . . . . . accessBob .NO HTML/PDF/RTF/MIME in e-mail. . . . . . . accessys at smartnospam.net .NO MSWord docs in e-mail . . . .. . . . . . Access Systems, engineers .NO attachments in e-mail, .*LINUX powered*. access is a civil right *#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*# THIS message and any attachments are CONFIDENTIAL and may be privileged. They are intended ONLY for the individual or entity named From wtogami at redhat.com Tue Sep 9 21:57:15 2008 From: wtogami at redhat.com (Warren Togami) Date: Tue, 09 Sep 2008 17:57:15 -0400 Subject: [K12OSN] K12Linux Logo Proofs (Round 3) Message-ID: <48C6F13B.30302@redhat.com> http://people.redhat.com/duffy/tmp/logoproofs.png Here is the third round. This time are a few options and variations for different types of media (monochrome, vertical, and text only.) We could still revisit ideas from Round 2 if there is particular demand. Opinions? Warren Togami wtogami at redhat.com From mel at melwade.com Tue Sep 9 22:24:33 2008 From: mel at melwade.com (Mel Wade) Date: Tue, 9 Sep 2008 15:24:33 -0700 Subject: [K12OSN] K12Linux Logo Proofs (Round 3) In-Reply-To: <48C6F13B.30302@redhat.com> References: <48C6F13B.30302@redhat.com> Message-ID: <43080f460809091524v3cded19iad1b7a6fe168b82f@mail.gmail.com> B - By a long shot. The others look messy. On Tue, Sep 9, 2008 at 2:57 PM, Warren Togami wrote: > http://people.redhat.com/duffy/tmp/logoproofs.png > > Here is the third round. This time are a few options and variations for > different types of media (monochrome, vertical, and text only.) > > We could still revisit ideas from Round 2 if there is particular demand. > > Opinions? > > Warren Togami > wtogami at redhat.com > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > -- Mel Wade "The real problem is not whether machines think but whether men do." - BF Skinner http://www.melwade.com -------------- next part -------------- An HTML attachment was scrubbed... URL: From Patrick.Healy at dsusd.us Tue Sep 9 22:33:12 2008 From: Patrick.Healy at dsusd.us (Healy, Patrick) Date: Tue, 9 Sep 2008 15:33:12 -0700 Subject: [K12OSN] K12Linux Logo Proofs (Round 3) Message-ID: <8DA4240136DC0E4F942F49709C8D0B750DE0CFE1@ds-mx2.dsusd.k12.ca.us> I completely agree with B -- Patrick Healy Palm Desert High School ========= Mel Wade wrote: B - By a long shot. The others look messy. On Tue, Sep 9, 2008 at 2:57 PM, Warren Togami wrote: http://people.redhat.com/duffy/tmp/logoproofs.png Here is the third round. This time are a few options and variations for different types of media (monochrome, vertical, and text only.) We could still revisit ideas from Round 2 if there is particular demand. Opinions? Warren Togami From moon at smbis.com Tue Sep 9 23:36:00 2008 From: moon at smbis.com (Moon) Date: Tue, 9 Sep 2008 19:36:00 -0400 Subject: [K12OSN] K12Linux Logo Proofs (Round 3) In-Reply-To: <48C6F13B.30302@redhat.com> References: <48C6F13B.30302@redhat.com> Message-ID: B has no flair, too rigid. If we know that the number four is offensive to some, then I recommend you drop on or two. However, I still think three characters with the center being the tallest looks like a bad focus of the Taj Mahal. C and D Linux lettering is really too thin. So A looks best... -----Original Message----- From: Warren Togami [mailto:wtogami at redhat.com] Sent: Tuesday, September 09, 2008 05:57 PM To: Support list for opensource software in schools.; Development discussion of K12Linux Subject: [K12OSN] K12Linux Logo Proofs (Round 3) http://people.redhat.com/duffy/tmp/logoproofs.png Here is the third round. This time are a few options and variations for different types of media (monochrome, vertical, and text only.) We could still revisit ideas from Round 2 if there is particular demand. Opinions? Warren Togami wtogami at redhat.com _______________________________________________ K12OSN mailing list K12OSN at redhat.com https://www.redhat.com/mailman/listinfo/k12osn For more info see From robark at gmail.com Wed Sep 10 04:29:46 2008 From: robark at gmail.com (Robert Arkiletian) Date: Tue, 9 Sep 2008 21:29:46 -0700 Subject: [K12OSN] A New direction for LTSP: Diskless Remote Boot Message-ID: Hello list, I know local app support is in the works BUT I'm wondering if anyone else is thinking it would be a good idea to have an option (or even a distro) which runs EVERYTHING on the client. Much like DRBL http://drbl.sourceforge.net/. The reason for my suggestion is that I feel the days of Terminal Servers are numbered. With the advent of Intel Atom like cpus, it now becomes possible to retain the energy efficiency of previous generation thin clients AND have enough cpu muscle to run a full desktop. As time goes on these cpus are only going to get faster. They are already fast enough and very affordable. http://www.newegg.com/Product/Product.aspx?Item=N82E16856167032 The benefits of LTSP are ease of administration, maintenance, affordability and energy efficiency. With Diskless remote booting these advantages are retained. But the traditional problems and difficulties in development of LTSP: remote sound, local devices (ltspfs), cpu hogs (flash), full screen video (network bottlenecks and sound sync), security (ssh tunnels, X latency), X caching pixmaps in local ram (firefox, OOo killing X).... they ALL disappear. One new problem does arise. The time to initially launch an app may be slightly increased. Since the app must be loaded from a remote disk, the network replaces the SATA cable. However, ram is so cheap, if you stick in 1GB on a client ($20), the 2.6 Linux kernel utilizes most of the ram by caching app memory. So if you launch FF, close it, then launch it again, it is much faster second time around. The slowest and most demanding event in a DRB lab would be boot time. However, this can be scheduled in a cron job (with WOL) to occur just before school opens in the morning. Problem solved. Fortunately, these new little boxes are shipping with 1000Mbps nics. In addition, full gigabit port switches are much more affordable than when they first came out. So for the future, as network switches get upgraded, this issue should dissapear. FAST disks on the server and a fat pipe to the switch would be optimal. SSD drives in the future may hold promise. The setup I describe above has been successfully implemented for an entire school district. Here http://www.sd73.bc.ca/district-operations.php/page/linux-in-education/ Most people who started using LTSP did so by re-using old computers (I still use PII's) as make shift thin clients. The cost of upgrading an entire lab was ONLY 1 server. It made sense. I still happily use K12LTSP today. But look at hardware technology/affordability today. I am in line for funding at the end of this school year. I am most likely going to buy a whole lab of Atom based systems much like the one linked above (hopefully the next gen). I wish I could install a Fedora or Ubuntu DRB distro. I hope LTSP developers and distros see this perspective. If others on this list agree or disagree please speak up as I want the general consensus to be known. -- Robert Arkiletian Eric Hamber Secondary, Vancouver, Canada Fl_TeacherTool http://www3.telus.net/public/robark/Fl_TeacherTool/ C++ GUI tutorial http://www3.telus.net/public/robark/ -- Robert Arkiletian Eric Hamber Secondary, Vancouver, Canada Fl_TeacherTool http://www3.telus.net/public/robark/Fl_TeacherTool/ C++ GUI tutorial http://www3.telus.net/public/robark/ From wtogami at redhat.com Wed Sep 10 04:37:15 2008 From: wtogami at redhat.com (Warren Togami) Date: Wed, 10 Sep 2008 00:37:15 -0400 Subject: [K12OSN] K12Linux Logo Proofs (Round 3) In-Reply-To: References: <48C6F13B.30302@redhat.com> Message-ID: <48C74EFB.4070303@redhat.com> Moon wrote: > B has no flair, too rigid. If we know that the number four is offensive to > some, then I recommend you drop on or two. However, I still think three > characters with the center being the tallest looks like a bad focus of the > Taj Mahal. C and D Linux lettering is really too thin. So A looks best... I have the same concerns about a Taj Mahal look. And if the two children are shrunk in size it looks like a pawn chess piece. I asked a few Japanese people today about four. They all said, "Don't worry about it." http://en.wikipedia.org/wiki/Image:NT1000.jpg Taiwan's 1000 dollar note apparently has four children on it. And apparently "four people" can also mean mahjong (not negative connotation). So I guess we shouldn't worry about four in this context. There are concerns that A looks less professional than B. I would have to agree with this. OTOH, I really like the lettering of A, and I'm not very excited about the logo of A or B. I wonder what B logo looks like if you're forced to monochrome colors or printing on a simple T-shirt. Gradients might not work well for that. Warren Togami wtogami at redhat.com From wtogami at redhat.com Wed Sep 10 04:42:47 2008 From: wtogami at redhat.com (Warren Togami) Date: Wed, 10 Sep 2008 00:42:47 -0400 Subject: [K12OSN] A New direction for LTSP: Diskless Remote Boot In-Reply-To: References: Message-ID: <48C75047.6010900@redhat.com> Robert Arkiletian wrote: > Hello list, > > I know local app support is in the works BUT > > I'm wondering if anyone else is thinking it would be a good idea to > have an option (or even a distro) which runs EVERYTHING on the client. > Much like DRBL http://drbl.sourceforge.net/. The reason for my > suggestion is that I feel the days of Terminal Servers are numbered. > With the advent of Intel Atom like cpus, it now becomes possible to > retain the energy efficiency of previous generation thin clients AND > have enough cpu muscle to run a full desktop. As time goes on these > cpus are only going to get faster. They are already fast enough and > very affordable. > > http://www.newegg.com/Product/Product.aspx?Item=N82E16856167032 Very soon you'll see dual core Atom on the market too. > > The benefits of LTSP are ease of administration, maintenance, > affordability and energy efficiency. With Diskless remote booting I personally would call it "diskless workstation". That's why I've been calling it diskless workstation increasingly in past months instead of thin clients. Totally agreed about the details and benefits of this model. I've been thinking about how to achieve this as an easy to install option in Fedora. One could run this in parallel with thin clients if they wish. I'm very swamped until late October with preparations for a big presentation, major surgery and travel. I hope to seriously look at a DRB like model for Fedora after F10 is out the door. Meanwhile could someone analyze how the tools/pieces of DRBL works and report back here? Warren Togami wtogami at redhat.com From scott at hosef.org Wed Sep 10 05:31:30 2008 From: scott at hosef.org (R. Scott Belford) Date: Tue, 9 Sep 2008 19:31:30 -1000 Subject: [K12OSN] A New direction for LTSP: Diskless Remote Boot In-Reply-To: <48C75047.6010900@redhat.com> References: <48C75047.6010900@redhat.com> Message-ID: On Tue, Sep 9, 2008 at 6:42 PM, Warren Togami wrote: > Robert Arkiletian wrote: > >> Hello list, >> >> I know local app support is in the works BUT >> >> I'm wondering if anyone else is thinking it would be a good idea to >> have an option (or even a distro) which runs EVERYTHING on the client. >> Much like DRBL http://drbl.sourceforge.net/. The reason for my >> suggestion is that I feel the days of Terminal Servers are numbered. >> With the advent of Intel Atom like cpus, it now becomes possible to >> retain the energy efficiency of previous generation thin clients AND >> have enough cpu muscle to run a full desktop. As time goes on these >> cpus are only going to get faster. They are already fast enough and >> very affordable. > > > > Meanwhile could someone analyze how the tools/pieces of DRBL works and > report back here? I would second Robert's observation that DRBL is something to model. You may recall that I discussed this with you earlier this year, Warren, while you were visiting UH.(1) I suggested then that DRBL handled the Flash issues, solved the need for central authentication, and provided goodies like Clonezilla to boot, literally. From a development roadmap, I don't know how to go about combining it with Fedora. I do know that it seems to solve a lot of problems. It uses a lot more NFS mounts, and you can boot many distro flavors. When one controls the Etherboot Menu by Mac address, as DRBL permits, the ability to centrally manage a complete fat, thin, thick, and imaging network is nearly limitless. --scott (1) http://www.youtube.com/watch?v=s7OskEcBM40 -------------- next part -------------- An HTML attachment was scrubbed... URL: From wtogami at redhat.com Wed Sep 10 05:35:21 2008 From: wtogami at redhat.com (Warren Togami) Date: Wed, 10 Sep 2008 01:35:21 -0400 Subject: [K12OSN] A New direction for LTSP: Diskless Remote Boot In-Reply-To: References: <48C75047.6010900@redhat.com> Message-ID: <48C75C99.7040301@redhat.com> R. Scott Belford wrote: > I would second Robert's observation that DRBL is something to model. You > may recall that I discussed this with you earlier this year, Warren, > while you were visiting UH.(1) I suggested then that DRBL handled the > Flash issues, solved the need for central authentication, and provided > goodies like Clonezilla to boot, literally. From a development roadmap, > I don't know how to go about combining it with Fedora. I do know that > it seems to solve a lot of problems. It uses a lot more NFS mounts, and > you can boot many distro flavors. Have you seen LTSP local apps support? The latest Fedora 9 update coming soon should have it working. The hybrid client model is another way to solve the Flash bandwidth issue. And it does so without the insecurity of NFS, using secure fuse ssh mounts instead. But yes, I totally agree with Robert on the DRBL model being the future. Warren Togami wtogami at redhat.com From microman at cmosnetworks.com Wed Sep 10 06:20:09 2008 From: microman at cmosnetworks.com (Terrell Prude' Jr.) Date: Wed, 10 Sep 2008 02:20:09 -0400 Subject: [K12OSN] K12Linux Logo Proofs (Round 3) In-Reply-To: <8DA4240136DC0E4F942F49709C8D0B750DE0CFE1@ds-mx2.dsusd.k12.ca.us> References: <8DA4240136DC0E4F942F49709C8D0B750DE0CFE1@ds-mx2.dsusd.k12.ca.us> Message-ID: <200809100220.09777.microman@cmosnetworks.com> I'd say B as well...but with the 3-person logos from C. That'd keep the Chinese happy. :-) BTW, that actually is true in China about the number four. I was in Hong Kong about three years ago, and businesses there do whatever they can to stay away from that number (addresses, phone #'s, etc.). --TP On Tuesday 09 September 2008 18:33, Healy, Patrick wrote: > I completely agree with B > -- Patrick Healy > Palm Desert High School > > ========= > > Mel Wade wrote: > B - By a long shot. The others look messy. > > On Tue, Sep 9, 2008 at 2:57 PM, Warren Togami wrote: > > http://people.redhat.com/duffy/tmp/logoproofs.png > > Here is the third round. This time are a few options and variations > for different types of media (monochrome, vertical, and text only.) > > We could still revisit ideas from Round 2 if there is particular > demand. > > Opinions? > > Warren Togami > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see From brian at portsmouth-college.ac.uk Wed Sep 10 08:21:26 2008 From: brian at portsmouth-college.ac.uk (Brian Chivers) Date: Wed, 10 Sep 2008 09:21:26 +0100 Subject: [K12OSN] Can;t login with gdm but ssh OK Message-ID: <48C78386.8010407@portsmouth-college.ac.uk> I've just setup my second thinclient box & I thought I'd done it exactly the same as the first but I must have missed something. The box has a slave ldap server running on it so it's setup to authenticate against this one to cut load on the main server. I can ssh in as a student OK but when I try to login as the same student on one of the client it doesn't work and /var/log/messages shows gdm: cannot authenticate user What have I missed :-) Thanks Brian Chivers Portsmouth College ------------------------------------------------------------------------------------------------ The views expressed here are my own and not necessarily the views of Portsmouth College From rob.owens at biochemfluidics.com Wed Sep 10 12:14:38 2008 From: rob.owens at biochemfluidics.com (Rob Owens) Date: Wed, 10 Sep 2008 08:14:38 -0400 Subject: [K12OSN] A New direction for LTSP: Diskless Remote Boot In-Reply-To: References: Message-ID: <48C7BA2E.6030709@biochemfluidics.com> I agree with most of your arguments in principle. For me, DRBL could be a potential alternative to LTSP. However, the Atom-based unit you mention uses a 65 watt power supply (I didn't see specs on the actual power consumption). That's small compared to a traditional desktop, but it's huge compared to the 6 watt thin clients I'm using. $150 (plus some money for RAM) doesn't seem like much to me to spend on this Atom-based unit, but I live in a developed country and have a good job. In lots of other parts of the world, $150 is unaffordable. Those places need to be able to use a 200MHz P2 with 32MB of RAM as a thin client. Heck, back when I started using LTSP, I needed to use a P2 as a thin client because I couldn't afford to buy something for my "little experiment". That brings me to another point. LTSP is enticing and is easy to try out because you can do it without spending any money -- you simply use some old junk. If it required a $200 or more investment just to try it out, would we see the same level of adoption? Granted, in the developed world $200 isn't much, but I still think it could be a barrier to adoption. Plenty of people will "try out this linux thing" if it doesn't cost anything, but how many people would buy a $150-$200 diskless workstation in order to "try out this linux thing". That diskless workstation won't even run Windows XP if their little linux experiment fails, so that would be money wasted. I think many people won't take the chance, and that would be a shame. So I guess I'm saying that DRBL-like capability would be a great addition, but I would hate to see the main focus of LTSP turn away from low-spec thin clients. -Rob Robert Arkiletian wrote: > Hello list, > > I know local app support is in the works BUT > > I'm wondering if anyone else is thinking it would be a good idea to > have an option (or even a distro) which runs EVERYTHING on the client. > Much like DRBL http://drbl.sourceforge.net/. The reason for my > suggestion is that I feel the days of Terminal Servers are numbered. > With the advent of Intel Atom like cpus, it now becomes possible to > retain the energy efficiency of previous generation thin clients AND > have enough cpu muscle to run a full desktop. As time goes on these > cpus are only going to get faster. They are already fast enough and > very affordable. > > http://www.newegg.com/Product/Product.aspx?Item=N82E16856167032 > > The benefits of LTSP are ease of administration, maintenance, > affordability and energy efficiency. With Diskless remote booting > these advantages are retained. But the traditional problems and > difficulties in development of LTSP: remote sound, local devices > (ltspfs), cpu hogs (flash), full screen video (network bottlenecks and > sound sync), security (ssh tunnels, X latency), X caching pixmaps > in local ram (firefox, OOo killing X).... they ALL disappear. > > One new problem does arise. The time to initially launch an app may be > slightly increased. Since the app must be loaded from a remote disk, > the network replaces the SATA cable. However, ram is so cheap, if you > stick in 1GB on a client ($20), the 2.6 Linux kernel utilizes most of > the ram by caching app memory. So if you launch FF, close it, then > launch it again, it is much faster second time around. The slowest and > most demanding event in a DRB lab would be boot time. However, this > can be scheduled in a cron job (with WOL) to occur just before school > opens in the morning. Problem solved. > > Fortunately, these new little boxes are shipping with 1000Mbps nics. > In addition, full gigabit port switches are much more affordable than > when they first came out. So for the future, as network switches get > upgraded, this issue should dissapear. FAST disks on the server and a > fat pipe to the switch would be optimal. SSD drives in the future may > hold promise. > > The setup I describe above has been successfully implemented for an > entire school district. Here > http://www.sd73.bc.ca/district-operations.php/page/linux-in-education/ > > Most people who started using LTSP did so by re-using old computers (I > still use PII's) as make shift thin clients. The cost of upgrading an > entire lab was ONLY 1 server. It made sense. I still happily use > K12LTSP today. > > But look at hardware technology/affordability today. I am in line for > funding at the end of this school year. I am most likely going to buy > a whole lab of Atom based systems much like the one linked above > (hopefully the next gen). I wish I could install a Fedora or Ubuntu > DRB distro. > > I hope LTSP developers and distros see this perspective. If others on > this list agree or disagree please speak up as I want the general > consensus to be known. > ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** From simpsond at leopards.k12.ar.us Wed Sep 10 12:56:42 2008 From: simpsond at leopards.k12.ar.us (Doug Simpson) Date: Wed, 10 Sep 2008 07:56:42 -0500 Subject: [K12OSN] A New direction for LTSP: Diskless Remote Boot In-Reply-To: <48C7BA2E.6030709@biochemfluidics.com> References: <48C7BA2E.6030709@biochemfluidics.com> Message-ID: <48C77DB9.550C.0078.0@leopards.k12.ar.us> HEAR! HEAR! The very reason I started with K12LTSP was the fact that I *could* use old hardware and make it usable again. As it progresses, though, it is getting harder and harder to use the older hardware. One of the key selling points early on was that you could use the same hardware for the clients for many years and just upgrade the server/software and use it for many years. This is not turning out to be the case. For example, I used to use a 486-dx33 with 28MB RAM as a client for my grandyounguns and it worked very well up until FC3. From then on, it because unusable. Granted, a 486 is pretty archaic, but it *was* usable is my point. Now it is hard to even get PII computers to work if they don't support etherboot natively, or if they don't have specific network cards in them. And forget trying to run any client with less than 64MB RAM. So, as it turns out, the client-side hardware will still need to be cycled every few years anyway. . . But, kudos to the guys that are developing this wonderful system called K12LTSP, and the LTSP project(s) in general. JMHO - YMMV Doug Doug Simpson Technology Specialist De Queen Public Schools De Queen, AR simpsond at leopards.k12.ar.us "A Dollar Saved is a Dollar Earned" >>> Rob Owens 9/10/2008 7:14 AM >>> I agree with most of your arguments in principle. For me, DRBL could be a potential alternative to LTSP. However, the Atom-based unit you mention uses a 65 watt power supply (I didn't see specs on the actual power consumption). That's small compared to a traditional desktop, but it's huge compared to the 6 watt thin clients I'm using. $150 (plus some money for RAM) doesn't seem like much to me to spend on this Atom-based unit, but I live in a developed country and have a good job. In lots of other parts of the world, $150 is unaffordable. Those places need to be able to use a 200MHz P2 with 32MB of RAM as a thin client. Heck, back when I started using LTSP, I needed to use a P2 as a thin client because I couldn't afford to buy something for my "little experiment". That brings me to another point. LTSP is enticing and is easy to try out because you can do it without spending any money -- you simply use some old junk. If it required a $200 or more investment just to try it out, would we see the same level of adoption? Granted, in the developed world $200 isn't much, but I still think it could be a barrier to adoption. Plenty of people will "try out this linux thing" if it doesn't cost anything, but how many people would buy a $150-$200 diskless workstation in order to "try out this linux thing". That diskless workstation won't even run Windows XP if their little linux experiment fails, so that would be money wasted. I think many people won't take the chance, and that would be a shame. So I guess I'm saying that DRBL-like capability would be a great addition, but I would hate to see the main focus of LTSP turn away from low-spec thin clients. -Rob Robert Arkiletian wrote: > Hello list, > > I know local app support is in the works BUT > > I'm wondering if anyone else is thinking it would be a good idea to > have an option (or even a distro) which runs EVERYTHING on the client. > Much like DRBL http://drbl.sourceforge.net/. The reason for my > suggestion is that I feel the days of Terminal Servers are numbered. > With the advent of Intel Atom like cpus, it now becomes possible to > retain the energy efficiency of previous generation thin clients AND > have enough cpu muscle to run a full desktop. As time goes on these > cpus are only going to get faster. They are already fast enough and > very affordable. > > http://www.newegg.com/Product/Product.aspx?Item=N82E16856167032 > > The benefits of LTSP are ease of administration, maintenance, > affordability and energy efficiency. With Diskless remote booting > these advantages are retained. But the traditional problems and > difficulties in development of LTSP: remote sound, local devices > (ltspfs), cpu hogs (flash), full screen video (network bottlenecks and > sound sync), security (ssh tunnels, X latency), X caching pixmaps > in local ram (firefox, OOo killing X).... they ALL disappear. > > One new problem does arise. The time to initially launch an app may be > slightly increased. Since the app must be loaded from a remote disk, > the network replaces the SATA cable. However, ram is so cheap, if you > stick in 1GB on a client ($20), the 2.6 Linux kernel utilizes most of > the ram by caching app memory. So if you launch FF, close it, then > launch it again, it is much faster second time around. The slowest and > most demanding event in a DRB lab would be boot time. However, this > can be scheduled in a cron job (with WOL) to occur just before school > opens in the morning. Problem solved. > > Fortunately, these new little boxes are shipping with 1000Mbps nics. > In addition, full gigabit port switches are much more affordable than > when they first came out. So for the future, as network switches get > upgraded, this issue should dissapear. FAST disks on the server and a > fat pipe to the switch would be optimal. SSD drives in the future may > hold promise. > > The setup I describe above has been successfully implemented for an > entire school district. Here > http://www.sd73.bc.ca/district-operations.php/page/linux-in-education/ > > Most people who started using LTSP did so by re-using old computers (I > still use PII's) as make shift thin clients. The cost of upgrading an > entire lab was ONLY 1 server. It made sense. I still happily use > K12LTSP today. > > But look at hardware technology/affordability today. I am in line for > funding at the end of this school year. I am most likely going to buy > a whole lab of Atom based systems much like the one linked above > (hopefully the next gen). I wish I could install a Fedora or Ubuntu > DRB distro. > > I hope LTSP developers and distros see this perspective. If others on > this list agree or disagree please speak up as I want the general > consensus to be known. > ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** _______________________________________________ K12OSN mailing list K12OSN at redhat.com https://www.redhat.com/mailman/listinfo/k12osn For more info see From dahopkins429 at gmail.com Wed Sep 10 13:13:21 2008 From: dahopkins429 at gmail.com (David Hopkins) Date: Wed, 10 Sep 2008 09:13:21 -0400 Subject: [K12OSN] Can;t login with gdm but ssh OK In-Reply-To: <48C78386.8010407@portsmouth-college.ac.uk> References: <48C78386.8010407@portsmouth-college.ac.uk> Message-ID: On Wed, Sep 10, 2008 at 4:21 AM, Brian Chivers wrote: > I've just setup my second thinclient box & I thought I'd done it exactly the > same as the first but I must have missed something. The box has a slave ldap > server running on it so it's setup to authenticate against this one to cut > load on the main server. > > I can ssh in as a student OK but when I try to login as the same student on > one of the client it doesn't work and /var/log/messages shows > > gdm: cannot authenticate user > > What have I missed :-) As a test, try setting authentication to use the master ldap server and make sure that is working. If so, set it back to the slave and if using nscd, restart nscd. I have gotten this message and it was related to cached login information. I also use a secondary ldap server but that is more for redundancy than load. My current ldap master only has a 100Mbit connection and dual PIII 1GHz processors with 2Gb of memory. Now that I have resolved the 'too many open files issue', I never see the load go above about .5 nor memory go above 1Gb even when authenticating 100+ users, but I do have nscd running on all my ltsp servers. Sincerely, Dave Hopkins From mel at melwade.com Wed Sep 10 13:21:37 2008 From: mel at melwade.com (Mel Wade) Date: Wed, 10 Sep 2008 06:21:37 -0700 Subject: [K12OSN] A New direction for LTSP: Diskless Remote Boot In-Reply-To: <48C77DB9.550C.0078.0@leopards.k12.ar.us> References: <48C7BA2E.6030709@biochemfluidics.com> <48C77DB9.550C.0078.0@leopards.k12.ar.us> Message-ID: <43080f460809100621r36218651k64ebc10929e730e5@mail.gmail.com> What if you are not planning on spending money on clients but recycling old hardware? -- Mel Wade "The real problem is not whether machines think but whether men do." - BF Skinner http://www.melwade.com -------------- next part -------------- An HTML attachment was scrubbed... URL: From scott at hosef.org Wed Sep 10 15:24:11 2008 From: scott at hosef.org (R. Scott Belford) Date: Wed, 10 Sep 2008 05:24:11 -1000 Subject: [K12OSN] A New direction for LTSP: Diskless Remote Boot In-Reply-To: <48C77DB9.550C.0078.0@leopards.k12.ar.us> References: <48C7BA2E.6030709@biochemfluidics.com> <48C77DB9.550C.0078.0@leopards.k12.ar.us> Message-ID: On Wed, Sep 10, 2008 at 2:56 AM, Doug Simpson wrote: > HEAR! HEAR! > > The very reason I started with K12LTSP was the fact that I *could* use old > hardware and make it usable again. LTSP 5 in Edubuntu has created some general problems with older, lightweight thin clients. DRBL works fine with older machines. The progress is encouraging for the latest Fedora spin. --scott -------------- next part -------------- An HTML attachment was scrubbed... URL: From wtogami at redhat.com Wed Sep 10 15:28:02 2008 From: wtogami at redhat.com (Warren Togami) Date: Wed, 10 Sep 2008 11:28:02 -0400 Subject: [K12OSN] A New direction for LTSP: Diskless Remote Boot In-Reply-To: References: <48C7BA2E.6030709@biochemfluidics.com> <48C77DB9.550C.0078.0@leopards.k12.ar.us> Message-ID: <48C7E782.6000907@redhat.com> R. Scott Belford wrote: > On Wed, Sep 10, 2008 at 2:56 AM, Doug Simpson > > wrote: > > HEAR! HEAR! > > The very reason I started with K12LTSP was the fact that I *could* > use old hardware and make it usable again. > > > LTSP 5 in Edubuntu has created some general problems with older, > lightweight thin clients. DRBL works fine with older machines. The > progress is encouraging for the latest Fedora spin. > Any idea what exactly LTSP5 Edubuntu is doing wrong? We're using almost all the same upstream sources, although more aggressively newer versions on a more frequent basis. We are doing X detection stuff in a completely different (and less broken) manner. But otherwise our stuff really isn't that different. Warren From steve.hargadon at gmail.com Wed Sep 10 15:27:58 2008 From: steve.hargadon at gmail.com (Steve Hargadon) Date: Wed, 10 Sep 2008 08:27:58 -0700 Subject: [K12OSN] Call for Presentations on Open Source at CUE and NECC In-Reply-To: References: Message-ID: Two educational technology conferences that have been SUPER supportive of Open Source Software and Open Technologies are CUE and NECC. Both sponsor "Open Source Pavilions" with Linux labs, and both have speaker tracks on Open Source. If you are interested in speaking at either the CUE or NECC 2009 conferences on Open Source Software, Open Content, or Open Technologies, I'd like to encourage you to submit speaking proposals. CUE: Due this Friday, September 12th! http://www.cue.org/conference/present NECC: Due Wednesday, October 8th. http://center.uoregon.edu/ISTE/NECC2009/program/ I hope you will consider participating! Steve -- Steve Hargadon steve at hargadon.com www.stevehargadon.com 916-899-1400 cell -------------- next part -------------- An HTML attachment was scrubbed... URL: From robark at gmail.com Wed Sep 10 15:34:14 2008 From: robark at gmail.com (Robert Arkiletian) Date: Wed, 10 Sep 2008 08:34:14 -0700 Subject: [K12OSN] A New direction for LTSP: Diskless Remote Boot In-Reply-To: <48C7BA2E.6030709@biochemfluidics.com> References: <48C7BA2E.6030709@biochemfluidics.com> Message-ID: On Wed, Sep 10, 2008 at 5:14 AM, Rob Owens wrote: > I agree with most of your arguments in principle. For me, DRBL could be > a potential alternative to LTSP. > > However, the Atom-based unit you mention uses a 65 watt power supply (I > didn't see specs on the actual power consumption). That's small > compared to a traditional desktop, but it's huge compared to the 6 watt > thin clients I'm using. > 65W is the max power rating. The Atom cpu uses 4W. But (on the newegg link model) the north/south bridge chip uses more. Intel has just released the newer Poulsbo SCH (Menlow platform) which should take the whole system down to around 10-12W. > $150 (plus some money for RAM) doesn't seem like much to me to spend on > this Atom-based unit, but I live in a developed country and have a good > job. In lots of other parts of the world, $150 is unaffordable. Those > places need to be able to use a 200MHz P2 with 32MB of RAM as a thin > client. Heck, back when I started using LTSP, I needed to use a P2 as a > thin client because I couldn't afford to buy something for my "little > experiment". This is a good point. So perhaps a configuration option which would turn regular LTSP into Diskless workstation mode. Wonder if it would be possibly to set it by mac address? That would be cool. > So I guess I'm saying that DRBL-like capability would be a great > addition, but I would hate to see the main focus of LTSP turn away from > low-spec thin clients. > Agreed. -- Robert Arkiletian Eric Hamber Secondary, Vancouver, Canada Fl_TeacherTool http://www3.telus.net/public/robark/Fl_TeacherTool/ C++ GUI tutorial http://www3.telus.net/public/robark/ From robark at gmail.com Wed Sep 10 17:54:10 2008 From: robark at gmail.com (Robert Arkiletian) Date: Wed, 10 Sep 2008 10:54:10 -0700 Subject: [K12OSN] A New direction for LTSP: Diskless Remote Boot In-Reply-To: <48C75047.6010900@redhat.com> References: <48C75047.6010900@redhat.com> Message-ID: On Tue, Sep 9, 2008 at 9:42 PM, Warren Togami wrote: > presentation, major surgery and travel. I hope to seriously look at a DRB Hope that goes well and a quick recovery Warren. > Meanwhile could someone analyze how the tools/pieces of DRBL works and > report back here? I don't have specifics on DRBL right now but seems Debian and Ubuntu have delved into this http://wiki.debian.org/DebianEdu/HowTo/LtspDisklessWorkstation https://help.ubuntu.com/community/UbuntuLTSP/LTSPFatClients -- Robert Arkiletian Eric Hamber Secondary, Vancouver, Canada Fl_TeacherTool http://www3.telus.net/public/robark/Fl_TeacherTool/ C++ GUI tutorial http://www3.telus.net/public/robark/ From rob.owens at biochemfluidics.com Wed Sep 10 18:06:42 2008 From: rob.owens at biochemfluidics.com (Rob Owens) Date: Wed, 10 Sep 2008 14:06:42 -0400 Subject: [K12OSN] bootup slow -- nfs server not responding In-Reply-To: <48C549A7.7060709@gmail.com> References: <48C53EE4.1080504@biochemfluidics.com> <48C549A7.7060709@gmail.com> Message-ID: <48C80CB2.3080701@biochemfluidics.com> Les Mikesell wrote: > Rob Owens wrote: >> I'm running K12LTSP 5.0EL 32-bit on a desktop-like machine with software >> RAID 1 using SATA drives. Processor is a dual-core AMD 5000+, NIC is >> gigabit, and I just upgraded to 4GB RAM (from 2GB). It's serving 11 >> GNOME sessions and 5 rdesktop sessions. The server also runs MySQL and >> Apache for some very lightly used web applications. >> >> The reason I upgraded the RAM is because I've been getting slow boot >> times on the thin clients, with the message "nfs server not responding" >> showing up at least 10 times during the boot process. The clients >> eventually boot successfully. The upgrade didn't seem to help, but hey, >> it was cheap and easy to try. >> >> iftop says I'm only using about 20Mb of bandwidth on the server's NIC. >> top shows the CPU usage is usually below 5%, and rarely hits 40%. So I >> think my hardware is up to the task. Are there any NFS tweaks I should >> be employing to eliminate the "not responding" errors, thereby speeding >> up my boot process? >> >> By the way, I have very little other network activity so I don't think >> my wires or my switch are saturated. >> > > Are you up to date with the current 5.2 updates? I think one of the > fairly recent kernel updates had NFS performance fixes - I'm not sure if > it will help with this issue, though. > I tried updating to the most recent kernel, but that didn't improve anything. -Rob ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** From rob.owens at biochemfluidics.com Wed Sep 10 18:09:14 2008 From: rob.owens at biochemfluidics.com (Rob Owens) Date: Wed, 10 Sep 2008 14:09:14 -0400 Subject: [K12OSN] bootup slow -- nfs server not responding In-Reply-To: <48C68B5F.6020508@vol.org> References: <48C53EE4.1080504@biochemfluidics.com> <48C68B5F.6020508@vol.org> Message-ID: <48C80D4A.7090801@biochemfluidics.com> george kocke wrote: > Rob Owens wrote: > >> The reason I upgraded the RAM is because I've been getting slow boot >> times on the thin clients, with the message "nfs server not responding" >> showing up at least 10 times during the boot process. The clients >> eventually boot successfully. The upgrade didn't seem to help, but hey, >> it was cheap and easy to try. > > Sorry if anyone else has responded with this, but the URL below helped > me when I ran into this problem: > > http://wiki.ltsp.org/twiki/bin/view/Ltsp/NFS#NFS_Server_not_responding > This seems to have solved my problem. I only tested it on PXE so far, but the problem has completely disappeared when PXE booting. For the archives: My "append" line in pxelinux.cfg/default was slightly different than the one shown on the wiki. I simply added: MOPTS=nolock,ro,wsize=2048,rsize=2048 to the end of my existing "append" line. Thanks for the help, everyone. -Rob ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** From peter at scheie.homedns.org Wed Sep 10 20:31:24 2008 From: peter at scheie.homedns.org (Peter Scheie) Date: Wed, 10 Sep 2008 15:31:24 -0500 Subject: [K12OSN] bootup slow -- nfs server not responding In-Reply-To: <48C80D4A.7090801@biochemfluidics.com> References: <48C53EE4.1080504@biochemfluidics.com> <48C68B5F.6020508@vol.org> <48C80D4A.7090801@biochemfluidics.com> Message-ID: <48C82E9C.3020005@scheie.homedns.org> Rob Owens wrote: > george kocke wrote: >> Rob Owens wrote: >> >>> The reason I upgraded the RAM is because I've been getting slow boot >>> times on the thin clients, with the message "nfs server not responding" >>> showing up at least 10 times during the boot process. The clients >>> eventually boot successfully. The upgrade didn't seem to help, but hey, >>> it was cheap and easy to try. >> Sorry if anyone else has responded with this, but the URL below helped >> me when I ran into this problem: >> >> http://wiki.ltsp.org/twiki/bin/view/Ltsp/NFS#NFS_Server_not_responding >> > This seems to have solved my problem. I only tested it on PXE so far, > but the problem has completely disappeared when PXE booting. > > For the archives: > > My "append" line in pxelinux.cfg/default was slightly different than the > one shown on the wiki. I simply added: > > MOPTS=nolock,ro,wsize=2048,rsize=2048 > > to the end of my existing "append" line. > I've had to use this same setting with some clients with 100Mb NICs when they are plugged into a gigabit port on the swithc (say, an 8-port switch with all gbit ports), even though they boot just fine when plugged into a 100Mb port (and server is plugged into the gbit port). Peter From scott at hosef.org Wed Sep 10 22:45:47 2008 From: scott at hosef.org (R. Scott Belford) Date: Wed, 10 Sep 2008 12:45:47 -1000 Subject: [K12OSN] A New direction for LTSP: Diskless Remote Boot In-Reply-To: <48C7E782.6000907@redhat.com> References: <48C7BA2E.6030709@biochemfluidics.com> <48C77DB9.550C.0078.0@leopards.k12.ar.us> <48C7E782.6000907@redhat.com> Message-ID: On Wed, Sep 10, 2008 at 5:28 AM, Warren Togami wrote: >> Any idea what exactly LTSP5 Edubuntu is doing wrong? We're using almost > all the same upstream sources, although more aggressively newer versions on > a more frequent basis. I am not so sure that I would reduce it to anything wrong. It may have felt that way to some users(1), myself included, but from a developer's perspective the implementation of MueKow, aka LTSP 5, into Edubuntu 7.10, was quite a spectacular feat. One CD and no network and you still had a functiong thin-client, or terminal server, lab. There seemed to be a discrepancy between user expectations, minimum required hardware specs, documentation, project goals, and the feedback loop between users and developers.(2) Many have become spoiled by Eric and Jim and you, Warren, because you seek solutions from the users at their level on their mailing lists. As many are learning - this is rare and should be treasured. If I had my way, I would put a few of you on a plane, bring you to Hawaii, and work it out. This is Vagrant's comment about rolling out LTSP 5 with debian-edu(3). The two of you may want to compare notes, Warren. Not unlike the impressive, Red Hat sponsored K12OSN list, debian-edu has a user mailing list with an awe-inspiring feedback loop between users and developers. > > We are doing X detection stuff in a completely different (and less broken) > manner. But otherwise our stuff really isn't that different. X detection could help. Using Edubuntu 7.10 with older clients that worked with 7.04 and the K12LTSP required lts.conf tweaking. This was Lesson 1 in appreciating how many headaches Eric and Jim silently saved us. Our migration of Peter's lab last year from the k12ltsp to edubuntu 7.04, and then to 7.10, was quite a Live lesson in upstream integration. In general, it seems that accommodating older hardware is the challenge with LTSP 5. I realize the impressive benefits of sharing one set of maintained applications, ssh rather than nfs, and what amounts to a virtualized OS that can be shared amongst many clients. Seems like Sun is taking Virtualbox there. The temptation is to rationalize the newer and faster hardware required because, as Robert observed(4), we are close to using solid state network appliances. The power savings alone may justify this path. This is the rub. As I will witness next month when Apple pays to haul many containers of hardware away from Hawaii, there is always someone, I think, who can use a donated computer or a functioning computer lab with donated, diskless workstations.(5) All of us on this list know this. Perhaps the path is for LTSP 5 to evolve with faster hardware in mind while projects like DRBL, that let me Etherboot Puppy Linux, address those of us using 'legacy' hardware. --scott (1) https://lists.ubuntu.com/archives/edubuntu-users/2007-December/002964.html (2) https://lists.ubuntu.com/archives/edubuntu-users/2008-September/004435.html (3) http://lists.debian.org/debian-edu/2008/09/msg00065.html (4) https://www.redhat.com/archives/k12osn/2008-September/msg00156.html (5) http://www.youtube.com/watch?v=QjBCKRcHAA4 -------------- next part -------------- An HTML attachment was scrubbed... URL: From wtogami at redhat.com Thu Sep 11 00:16:23 2008 From: wtogami at redhat.com (Warren Togami) Date: Wed, 10 Sep 2008 20:16:23 -0400 Subject: [K12OSN] A New direction for LTSP: Diskless Remote Boot In-Reply-To: References: <48C7BA2E.6030709@biochemfluidics.com> <48C77DB9.550C.0078.0@leopards.k12.ar.us> <48C7E782.6000907@redhat.com> Message-ID: <48C86357.5060209@redhat.com> R. Scott Belford wrote: > Hawaii, and work it out. This is Vagrant's comment about rolling out > LTSP 5 with debian-edu(3). The two of you may want to compare notes, > Warren. Vagrant and I together have been doing maybe 80% of the LTSP upstream work since December 2007. We are in communication often. Warren Togami wtogami at redhat.com From brcisna at eazylivin.net Thu Sep 11 04:48:37 2008 From: brcisna at eazylivin.net (Barry R Cisna) Date: Wed, 10 Sep 2008 23:48:37 -0500 Subject: [K12OSN] bootup slow -- nfs server not responding Message-ID: <1221108517.1277.7.camel@localhost.localdomain> Peter, Thanks for sharing that bit of information. I always wondered why some people had to put that option into their kernel arguments to make clients boot.Now we know( maybe) that it is the negotiating thing between the nic (100MB),and the gige switch doesn't automagically happen without this bit. I think the same holds true on some managed switches as well? Is that the 'n-way' part of the switch innards? Don't know, don't care I guess:) Take Care, Barry Cisna From rob.owens at biochemfluidics.com Thu Sep 11 11:14:43 2008 From: rob.owens at biochemfluidics.com (Rob Owens) Date: Thu, 11 Sep 2008 07:14:43 -0400 Subject: [K12OSN] bootup slow -- nfs server not responding In-Reply-To: <48C82E9C.3020005@scheie.homedns.org> References: <48C53EE4.1080504@biochemfluidics.com> <48C68B5F.6020508@vol.org> <48C80D4A.7090801@biochemfluidics.com> <48C82E9C.3020005@scheie.homedns.org> Message-ID: <48C8FDA3.4000505@biochemfluidics.com> Peter Scheie wrote: > > > Rob Owens wrote: >> george kocke wrote: >>> Rob Owens wrote: >>> >>>> The reason I upgraded the RAM is because I've been getting slow boot >>>> times on the thin clients, with the message "nfs server not responding" >>>> showing up at least 10 times during the boot process. The clients >>>> eventually boot successfully. The upgrade didn't seem to help, but >>>> hey, >>>> it was cheap and easy to try. >>> Sorry if anyone else has responded with this, but the URL below helped >>> me when I ran into this problem: >>> >>> http://wiki.ltsp.org/twiki/bin/view/Ltsp/NFS#NFS_Server_not_responding >>> >> This seems to have solved my problem. I only tested it on PXE so far, >> but the problem has completely disappeared when PXE booting. >> >> For the archives: >> >> My "append" line in pxelinux.cfg/default was slightly different than the >> one shown on the wiki. I simply added: >> >> MOPTS=nolock,ro,wsize=2048,rsize=2048 >> >> to the end of my existing "append" line. >> > I've had to use this same setting with some clients with 100Mb NICs when > they are plugged into a gigabit port on the swithc (say, an 8-port > switch with all gbit ports), even though they boot just fine when > plugged into a 100Mb port (and server is plugged into the gbit port). > That's exactly my situation! In fact, our old 100Mb switch (with 1000Mb uplink) recently went bad, and was replaced with a full 1000Mb switch. I guess that must be when the trouble started. -Rob ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** From nils at breun.nl Thu Sep 11 11:26:32 2008 From: nils at breun.nl (Nils Breunese) Date: Thu, 11 Sep 2008 13:26:32 +0200 Subject: [K12OSN] bootup slow -- nfs server not responding In-Reply-To: <48C8FDA3.4000505@biochemfluidics.com> References: <48C53EE4.1080504@biochemfluidics.com> <48C68B5F.6020508@vol.org> <48C80D4A.7090801@biochemfluidics.com> <48C82E9C.3020005@scheie.homedns.org> <48C8FDA3.4000505@biochemfluidics.com> Message-ID: <6BDDDED2-AAE8-43ED-8EAF-FCED2F497727@breun.nl> Rob Owens wrote: > Peter Scheie wrote: >> >> Rob Owens wrote: >>> george kocke wrote: >>>> Rob Owens wrote: >>>> >>>>> The reason I upgraded the RAM is because I've been getting slow >>>>> boot >>>>> times on the thin clients, with the message "nfs server not >>>>> responding" >>>>> showing up at least 10 times during the boot process. The clients >>>>> eventually boot successfully. The upgrade didn't seem to help, >>>>> but >>>>> hey, >>>>> it was cheap and easy to try. >>>> Sorry if anyone else has responded with this, but the URL below >>>> helped >>>> me when I ran into this problem: >>>> >>>> http://wiki.ltsp.org/twiki/bin/view/Ltsp/NFS#NFS_Server_not_responding >>>> >>> This seems to have solved my problem. I only tested it on PXE so >>> far, >>> but the problem has completely disappeared when PXE booting. >>> >>> For the archives: >>> >>> My "append" line in pxelinux.cfg/default was slightly different >>> than the >>> one shown on the wiki. I simply added: >>> >>> MOPTS=nolock,ro,wsize=2048,rsize=2048 >>> >>> to the end of my existing "append" line. >>> >> I've had to use this same setting with some clients with 100Mb NICs >> when >> they are plugged into a gigabit port on the swithc (say, an 8-port >> switch with all gbit ports), even though they boot just fine when >> plugged into a 100Mb port (and server is plugged into the gbit port). >> > That's exactly my situation! In fact, our old 100Mb switch (with > 1000Mb > uplink) recently went bad, and was replaced with a full 1000Mb switch. > I guess that must be when the trouble started. AFAIK we also had to change the NFS options when we set up our K12LTSP 5EL server. We use a gigabit switch and clients with old 100 Mb NICs. Nils Breunese. From rob.owens at biochemfluidics.com Thu Sep 11 14:29:08 2008 From: rob.owens at biochemfluidics.com (Rob Owens) Date: Thu, 11 Sep 2008 10:29:08 -0400 Subject: [K12OSN] A New direction for LTSP: Diskless Remote Boot In-Reply-To: References: <48C7BA2E.6030709@biochemfluidics.com> <48C77DB9.550C.0078.0@leopards.k12.ar.us> <48C7E782.6000907@redhat.com> Message-ID: <48C92B34.3000307@biochemfluidics.com> R. Scott Belford wrote: > On Wed, Sep 10, 2008 at 5:28 AM, Warren Togami > wrote: > > > Any idea what exactly LTSP5 Edubuntu is doing wrong? We're using > almost all the same upstream sources, although more aggressively > newer versions on a more frequent basis. > > There seemed to be a discrepancy between user expectations, minimum > required hardware specs, documentation, project goals, and the feedback > loop between users and developers.(2) Many have become spoiled by Eric > and Jim and you, Warren, because you seek solutions from the users at > their level on their mailing lists. As many are learning - this is rare > and should be treasured. > I think a lot of it comes down to expectations. Many early Edubuntu users were also K12LTSP users. K12LTSP works so great and is so easy to set up, that the standard was set very high for Edubuntu. There has been a lot of hype around Edubuntu -- which I think is a good thing because it helps to attract new users. But the hype also attracted some K12LTSP users and I think, in general, those are the users who have been disappointed with Edubuntu. -Rob ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** From moon at smbis.com Thu Sep 11 14:42:58 2008 From: moon at smbis.com (Moon) Date: Thu, 11 Sep 2008 10:42:58 -0400 Subject: [K12OSN] A New direction for LTSP: Diskless Remote Boot In-Reply-To: <48C92B34.3000307@biochemfluidics.com> References: <48C7BA2E.6030709@biochemfluidics.com> <48C77DB9.550C.0078.0@leopards.k12.ar.us> <48C7E782.6000907@redhat.com> <48C92B34.3000307@biochemfluidics.com> Message-ID: <1B6EF0FC32654B1EBB9392016AC45CD8@acerpc> Actually, I started using Edubuntu first about a year and a half ago using 6.10 release when I started supporting the school I'm working with. The problems I encountered with Edubuntu were mostly overhyped capabilities early on. Then with the release of 8.04, a whole new set of problems arose that were not something that could be ignored or worked around any longer, so I switched everything over to K12LTSP EL5. Since switching to K12LTSP EL5, I have had 100% stability and consistency. It just works, period! BTW, for the most part, I have made the desktop theme pretty much like the one used for our Edubuntu LTSP5 and not one person has mentioned anything about it. I am currently reviewing everything I can on DRBL and Clonezilla as this might address my school's requirement for various multimedia uses, like DVD video playback and flash videos on the clients. The Clonezilla tool looks like a very useful tool for imaging workstations. Thanks to all those that have mentioned DRBL and Clonezilla here. Charlie -----Original Message----- From: Rob Owens [mailto:rob.owens at biochemfluidics.com] Sent: Thursday, September 11, 2008 10:29 AM To: Support list for open source software in schools. Subject: Re: [K12OSN] A New direction for LTSP: Diskless Remote Boot R. Scott Belford wrote: > On Wed, Sep 10, 2008 at 5:28 AM, Warren Togami > wrote: > > > Any idea what exactly LTSP5 Edubuntu is doing wrong? We're using > almost all the same upstream sources, although more aggressively > newer versions on a more frequent basis. > > There seemed to be a discrepancy between user expectations, minimum > required hardware specs, documentation, project goals, and the feedback > loop between users and developers.(2) Many have become spoiled by Eric > and Jim and you, Warren, because you seek solutions from the users at > their level on their mailing lists. As many are learning - this is rare > and should be treasured. > I think a lot of it comes down to expectations. Many early Edubuntu users were also K12LTSP users. K12LTSP works so great and is so easy to set up, that the standard was set very high for Edubuntu. There has been a lot of hype around Edubuntu -- which I think is a good thing because it helps to attract new users. But the hype also attracted some K12LTSP users and I think, in general, those are the users who have been disappointed with Edubuntu. -Rob ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** _______________________________________________ K12OSN mailing list K12OSN at redhat.com https://www.redhat.com/mailman/listinfo/k12osn For more info see From cramptons at duvalschools.org Thu Sep 11 15:55:13 2008 From: cramptons at duvalschools.org (Crampton, Stephen C.) Date: Thu, 11 Sep 2008 11:55:13 -0400 Subject: [K12OSN] Lenovo Thin Client Problems References: <20080909160045.AF1CF8E07EB@hormel.redhat.com> Message-ID: An embedded message was scrubbed... From: "Crampton, Stephen C." Subject: Lenovo Thin Client Problems Date: Thu, 11 Sep 2008 11:55:13 -0400 Size: 5701 URL: -------------- next part -------------- The information contained in this message may be privileged and confidential and protected from disclosure. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by replying to the message and deleting it from your computer. Under Florida law, e-mail addresses are public records. If you do not want your e-mail address released in response to a public-records request, do not send electronic mail to this entity. Instead, contact this office by phone or in writing. From cramptons at duvalschools.org Thu Sep 11 15:58:58 2008 From: cramptons at duvalschools.org (Crampton, Stephen C.) Date: Thu, 11 Sep 2008 11:58:58 -0400 Subject: [K12OSN] RE: Lenovo Thin Client Problems References: <20080909160045.AF1CF8E07EB@hormel.redhat.com> Message-ID: SERVER [mrc at server ~]$ uname -a Linux server.ltsp 2.6.20-1.2320.fc5 #1 SMP Tue Jun 12 18:50:49 EDT 2007 x86_64 x86_64 x86_64 GNU/Linux Some other types of clients boot, however, . . . With the client specified below I get a kernel panic after Running /linuxrc Mounting /proc ERROR: Could not automatically detect the network card . . . After changing default to read prompt 0 label linux kernel vmlinuz.ltsp append root=/dev/ram0 rw initrd=initramfs.gz MOPTS=nolock,ro,wsize=2048,rsize=2048 NIC=tg3 I get the panic at about the same place, after insmod /lib/modules/2.6.17.3-ltsp-1/kernel/direcers/net/tg3.ko Running dhcpd on port 67 ERROR! dhcpd failed! CLIENT Lenovo ThinkCentre M55e http://review.zdnet.com/desktops/lenovo-thinkcentre-m55e-9632/4507-3118_16-32330429.html?tag=ut Tried adding NIC=tg3 to default per http://wiki.ltsp.org/twiki/bin/view/Ltsp/KernelOptions Also tried backporting the ltsp-kernel per http://www.redhat.com/archives/k12osn/2006-September/msg00216.html Can anyone help? The information contained in this message may be privileged and confidential and protected from disclosure. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by replying to the message and deleting it from your computer. Under Florida law, e-mail addresses are public records. If you do not want your e-mail address released in response to a public-records request, do not send electronic mail to this entity. Instead, contact this office by phone or in writing. -------------- next part -------------- An HTML attachment was scrubbed... URL: From dvanassche at gmail.com Thu Sep 11 16:15:09 2008 From: dvanassche at gmail.com (David Van Assche) Date: Thu, 11 Sep 2008 18:15:09 +0200 Subject: [K12OSN] RE: Lenovo Thin Client Problems In-Reply-To: References: <20080909160045.AF1CF8E07EB@hormel.redhat.com> Message-ID: <8cc423ef0809110915q1a2fa485q5ef69d5a6b141564@mail.gmail.com> I've had the same error happen frequently, and I believe its down the the tg3 drivers. My eth0 and eth1 would be working fine for a couple of months and then for whatever reason, one of them stops working completely without the kernel being able to probe it. A simple, albeit stupid workaround was to load a usb or cdrom based live distro and then it reconnects. After this restarting got both nics back up. Kind Regards, David Van Assche 2008/9/11 Crampton, Stephen C. : > SERVER > [mrc at server ~]$ uname -a > Linux server.ltsp 2.6.20-1.2320.fc5 #1 SMP Tue Jun 12 18:50:49 EDT 2007 > x86_64 x86_64 x86_64 GNU/Linux > > > Some other types of clients boot, however, . . . > > With the client specified below I get a kernel panic after > Running /linuxrc > Mounting /proc > ERROR: Could not automatically detect the network card . . . > > After changing default to read > prompt 0 > label linux > kernel vmlinuz.ltsp > append root=/dev/ram0 rw initrd=initramfs.gz > MOPTS=nolock,ro,wsize=2048,rsize=2048 NIC=tg3 > > I get the panic at about the same place, after > > insmod /lib/modules/2.6.17.3-ltsp-1/kernel/direcers/net/tg3.ko > Running dhcpd on port 67 > > ERROR! dhcpd failed! > > > CLIENT > Lenovo ThinkCentre M55e > http://review.zdnet.com/desktops/lenovo-thinkcentre-m55e-9632/4507-3118_16-32330429.html?tag=ut > > Tried adding NIC=tg3 to default per > http://wiki.ltsp.org/twiki/bin/view/Ltsp/KernelOptions > > Also tried backporting the ltsp-kernel per > http://www.redhat.com/archives/k12osn/2006-September/msg00216.html > > Can anyone help? > > The information contained in this message may be privileged and confidential > and protected from disclosure. If the reader of this message is not the > intended recipient, or an employee or agent responsible for delivering this > message to the intended recipient, you are hereby notified that any > dissemination, distribution or copying of this communication is strictly > prohibited. If you have received this communication in error, please notify > us immediately by replying to the message and deleting it from your > computer. Under Florida law, e-mail addresses are public records. If you do > not want your e-mail address released in response to a public-records > request, do not send electronic mail to this entity. Instead, contact this > office by phone or in writing. > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > From cramptons at duvalschools.org Thu Sep 11 16:39:33 2008 From: cramptons at duvalschools.org (Crampton, Stephen C.) Date: Thu, 11 Sep 2008 12:39:33 -0400 Subject: [K12OSN] Wyse Thin Client Recommendations References: <20080911160036.6767861B134@hormel.redhat.com> Message-ID: An embedded message was scrubbed... From: "Crampton, Stephen C." Subject: Wyse Thin Client Recommendations Date: Thu, 11 Sep 2008 12:39:33 -0400 Size: 4911 URL: -------------- next part -------------- The information contained in this message may be privileged and confidential and protected from disclosure. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by replying to the message and deleting it from your computer. Under Florida law, e-mail addresses are public records. If you do not want your e-mail address released in response to a public-records request, do not send electronic mail to this entity. Instead, contact this office by phone or in writing. From robark at gmail.com Thu Sep 11 17:57:55 2008 From: robark at gmail.com (Robert Arkiletian) Date: Thu, 11 Sep 2008 10:57:55 -0700 Subject: [K12OSN] Wyse Thin Client Recommendations In-Reply-To: References: <20080911160036.6767861B134@hormel.redhat.com> Message-ID: Hi Stephen, Can you please send your messages to this list as plain text. Not as attachments. Also your long legal signature does not really make sense on a public list. Thanks 2008/9/11 Crampton, Stephen C. : > > The information contained in this message may be privileged and confidential and protected from disclosure. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by replying to the message and deleting it from your computer. Under Florida law, e-mail addresses are public records. If you do not want your e-mail address released in response to a public-records request, do not send electronic mail to this entity. Instead, contact this office by phone or in writing. > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > -- Robert Arkiletian Eric Hamber Secondary, Vancouver, Canada Fl_TeacherTool http://www3.telus.net/public/robark/Fl_TeacherTool/ C++ GUI tutorial http://www3.telus.net/public/robark/ From cramptons at duvalschools.org Thu Sep 11 18:30:38 2008 From: cramptons at duvalschools.org (Crampton, Stephen C.) Date: Thu, 11 Sep 2008 14:30:38 -0400 Subject: [K12OSN] Wyse Thin Client Recommendations References: <20080911160036.6767861B134@hormel.redhat.com> Message-ID: I'm sorry, but this is the only email program I can use while at school (the school district blocks gmail). It must be autoappending the legal garbage and reformatting the message. I will try to send messages when I can from gmail at home, however, I'm often working long days at school and have 3 small kids at home so it's not always easy to do that. I apologize for any inconvenience it may cause anybody. -----Original Message----- Hi Stephen, Can you please send your messages to this list as plain text. Not as attachments. Also your long legal signature does not really make sense on a public list. The information contained in this message may be privileged and confidential and protected from disclosure. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by replying to the message and deleting it from your computer. Under Florida law, e-mail addresses are public records. If you do not want your e-mail address released in response to a public-records request, do not send electronic mail to this entity. Instead, contact this office by phone or in writing. -------------- next part -------------- An HTML attachment was scrubbed... URL: From robark at gmail.com Thu Sep 11 19:40:38 2008 From: robark at gmail.com (Robert Arkiletian) Date: Thu, 11 Sep 2008 12:40:38 -0700 Subject: [K12OSN] Wyse Thin Client Recommendations In-Reply-To: References: <20080911160036.6767861B134@hormel.redhat.com> Message-ID: 2008/9/11 Crampton, Stephen C. : > I'm sorry, but this is the only email program I can use while at school (the > school district blocks gmail). It must be autoappending the legal garbage > and reformatting the message. I will try to send messages when I can from > gmail at home, however, I'm often working long days at school and have 3 > small kids at home so it's not always easy to do that. > > I apologize for any inconvenience it may cause anybody. I have 2 of my own. I understand completely. You might want to try using thunderbird email client with gmail. Gmail supports imap. Hopefully your district has not blocked that also. http://mail.google.com/support/bin/answer.py?hl=en&answer=77662 -- Robert Arkiletian Eric Hamber Secondary, Vancouver, Canada Fl_TeacherTool http://www3.telus.net/public/robark/Fl_TeacherTool/ C++ GUI tutorial http://www3.telus.net/public/robark/ From robark at gmail.com Thu Sep 11 19:47:24 2008 From: robark at gmail.com (Robert Arkiletian) Date: Thu, 11 Sep 2008 12:47:24 -0700 Subject: [K12OSN] Wyse Thin Client Recommendations In-Reply-To: References: <20080911160036.6767861B134@hormel.redhat.com> Message-ID: On Thu, Sep 11, 2008 at 12:40 PM, Robert Arkiletian > http://mail.google.com/support/bin/answer.py?hl=en&answer=77662 Wait! you can't go the address above can you. No images but here it is. Note: if you're using an older version of Thunderbird, we highly recommend upgrading to version 2.0. To set up your Thunderbird client to work with Gmail: Enable IMAP in Gmail. Open Thunderbird, and select Tools > Account Settings. Click Add Account. Select the Email account radio button and click Next. The Identity screen appears. Enter your full name in the Your Name field. Enter your Gmail address (username at gmail.com) in the Email Address field, and click Next. Google Apps users, enter your full address in the format username at your_domain.com. Select IMAP as the type of incoming server you are using. Enter imap.gmail.com in the Incoming Server field. Set the Outgoing Server to smtp.gmail.com, and click Next. Enter your full email address (including @gmail.com @your_domain.com) in the Incoming User Name and Outgoing User Name fields, and click Next. Enter a name for your email account in the Account Name field, and click Next. Verify your account information in the dialog box, and click Finish. Select Server Settings from the folder list below your new account. Update the Port value to 993. In the Security Settings section, select SSL from the Use secure connection options. Select Check for messages at startup and Automatically download new messages Click Outgoing Server (SMTP) in the folder list Select the smtp.gmail.com (Default) entry from the list and click Edit. The SMTP Server page appears. Enter smtp.gmail.com as the Server Name and set the Port to 587. Select User name and password and enter your full email address (including @gmail.com or @your_domain.com) in the User Name field. Select TLS from the Use secure connection radio buttons and click OK. Click OK to save your changes and exit the Account Settings dialog. Check our recommended client settings, and adjust your client's settings as needed. * Did you click 'Save Changes' after enabling IMAP in Gmail? To ensure that Gmail can communicate with your mail client, be sure to click Save Changes on the Forwarding and POP/IMAP settings tab. -- Robert Arkiletian Eric Hamber Secondary, Vancouver, Canada Fl_TeacherTool http://www3.telus.net/public/robark/Fl_TeacherTool/ C++ GUI tutorial http://www3.telus.net/public/robark/ From brcisna at eazylivin.net Thu Sep 11 20:52:31 2008 From: brcisna at eazylivin.net (Barry R Cisna) Date: Thu, 11 Sep 2008 15:52:31 -0500 Subject: [K12OSN] RE: Lenovo Thin Client Problems Message-ID: <1221166351.12903.5.camel@localhost.localdomain> Hi Stephen, Did you try your setup with simply appending the 'NIC = tg3' to the end of your pxe default file? In other words without the MOPTS=nolock,ro,wsize=2048,rsize=2048 part in it? Do you by chance have an 8-port gigE switch you can try ( temporarily),plugging your Lenovo into? I wonder if this would let your nic negotiate correctly? Just a couple thoughts. Take Care, Barry Cisna From krauses at deerpark.wednet.edu Thu Sep 11 21:21:44 2008 From: krauses at deerpark.wednet.edu (Steve Krause) Date: Thu, 11 Sep 2008 14:21:44 -0700 Subject: [K12OSN] Setting up FC9 LTSP5 and Active Directory integration Message-ID: <48C92978020000FC00008D8A@dpsd-email-2.deerpark.wednet.edu> I am trying to setup several LTSP servers for our school district. I have previously setup a couple on FC6 and LTSP 4.2 and they are workable, but trying to upgrade OpenOffice.org and Firefox has been problematic. I would like to build new servers on FC9 and LTSP 5. The hitch is configuring Active Directory integration to allow students and staff to login using existing AD accounts and accessing the existing home directories. It works well on the FC6 servers, but I am having no luck on FC9. I heard there are problems with the version of Samba that comes with FC9 connecting to Win2003 AD. I have the set of files modified for FC6 from /etc, /etc/pam.d, /etc/samba, /etc/security and have tranferred them to the FC9 server. Following all the same steps, client logons appear to work and even create home folders, but then the client drops back to the DM login screen. We are also trying to use KDE and Kiosk Admin Tool to manage/lockdown the student desktops. Any help on either of these fronts, but especially the AD logins, would be greatly appreciated. Thanks in advance. Steve Krause, CNE Network Manager Deer Park School District #414 Deer Park, WA (509) 464-5567 krauses at deerpark.wednet.edu From brcisna at eazylivin.net Thu Sep 11 21:50:31 2008 From: brcisna at eazylivin.net (Barry R Cisna) Date: Thu, 11 Sep 2008 16:50:31 -0500 Subject: [K12OSN] Setting up FC9 LTSP5 and Active Directory integration Message-ID: <1221169831.13813.5.camel@localhost.localdomain> Steve, Please post your smb.conf file. Do you have samba logging set to 2? If so send a snippet of your samba log here as well after you have tried to do a domain logon from a winders client. This will usually tell the tale of a lot of troubles. I'm assuming you have winbind activated? What version of samba and winbind? This is a starting point. Take Care, Barry Cisna From joseph.bishay at gmail.com Thu Sep 11 22:24:12 2008 From: joseph.bishay at gmail.com (Joseph Bishay) Date: Thu, 11 Sep 2008 18:24:12 -0400 Subject: [K12OSN] A New direction for LTSP: Diskless Remote Boot In-Reply-To: <48C77DB9.550C.0078.0@leopards.k12.ar.us> References: <48C7BA2E.6030709@biochemfluidics.com> <48C77DB9.550C.0078.0@leopards.k12.ar.us> Message-ID: I just wanted to add my voice to what Doug said here. It was specifically because I could use the currently existing (and at the time, very old) hardware without any investment other than burning a couple of CDs and my time educating myself about LTSP that I was able to, very quickly, bring life to a old, dead, computer lab. I know I would have never been able to receive the approval for even $100 to try out this new 'Linux' thing. I would have been told "why waste the money -- just put it into Windows." It was because I was able to do it at no cost, that the funding was approved for the $2000 server (5 years ago) for LTSP. And this lab still runs now, with old hardware, and not in a developing world, but in Canada at a non-profit organization serving the kids. I would urge you not to forget about that large user-base in a similar situation who's first introduction into this brilliant solution comes from the no-barrier entry fee. Thanks Joseph On Wed, Sep 10, 2008 at 8:56 AM, Doug Simpson wrote: > HEAR! HEAR! > > The very reason I started with K12LTSP was the fact that I *could* use old hardware and make it usable again. > > As it progresses, though, it is getting harder and harder to use the older hardware. One of the key selling points early on was that you could use the same hardware for the clients for many years and just upgrade the server/software and use it for many years. This is not turning out to be the case. > > For example, I used to use a 486-dx33 with 28MB RAM as a client for my grandyounguns and it worked very well up until FC3. From then on, it because unusable. Granted, a 486 is pretty archaic, but it *was* usable is my point. > > Now it is hard to even get PII computers to work if they don't support etherboot natively, or if they don't have specific network cards in them. And forget trying to run any client with less than 64MB RAM. > > So, as it turns out, the client-side hardware will still need to be cycled every few years anyway. . . > > But, kudos to the guys that are developing this wonderful system called K12LTSP, and the LTSP project(s) in general. > > JMHO - YMMV > > Doug > > Doug Simpson > Technology Specialist > De Queen Public Schools > De Queen, AR > simpsond at leopards.k12.ar.us > "A Dollar Saved is a Dollar Earned" > > >>>> Rob Owens 9/10/2008 7:14 AM >>> > I agree with most of your arguments in principle. For me, DRBL could be > a potential alternative to LTSP. > > However, the Atom-based unit you mention uses a 65 watt power supply (I > didn't see specs on the actual power consumption). That's small > compared to a traditional desktop, but it's huge compared to the 6 watt > thin clients I'm using. > > $150 (plus some money for RAM) doesn't seem like much to me to spend on > this Atom-based unit, but I live in a developed country and have a good > job. In lots of other parts of the world, $150 is unaffordable. Those > places need to be able to use a 200MHz P2 with 32MB of RAM as a thin > client. Heck, back when I started using LTSP, I needed to use a P2 as a > thin client because I couldn't afford to buy something for my "little > experiment". > > That brings me to another point. LTSP is enticing and is easy to try > out because you can do it without spending any money -- you simply use > some old junk. If it required a $200 or more investment just to try it > out, would we see the same level of adoption? Granted, in the developed > world $200 isn't much, but I still think it could be a barrier to > adoption. Plenty of people will "try out this linux thing" if it > doesn't cost anything, but how many people would buy a $150-$200 > diskless workstation in order to "try out this linux thing". That > diskless workstation won't even run Windows XP if their little linux > experiment fails, so that would be money wasted. I think many people > won't take the chance, and that would be a shame. > > So I guess I'm saying that DRBL-like capability would be a great > addition, but I would hate to see the main focus of LTSP turn away from > low-spec thin clients. > > -Rob > > Robert Arkiletian wrote: >> Hello list, >> >> I know local app support is in the works BUT >> >> I'm wondering if anyone else is thinking it would be a good idea to >> have an option (or even a distro) which runs EVERYTHING on the client. >> Much like DRBL http://drbl.sourceforge.net/. The reason for my >> suggestion is that I feel the days of Terminal Servers are numbered. >> With the advent of Intel Atom like cpus, it now becomes possible to >> retain the energy efficiency of previous generation thin clients AND >> have enough cpu muscle to run a full desktop. As time goes on these >> cpus are only going to get faster. They are already fast enough and >> very affordable. >> >> http://www.newegg.com/Product/Product.aspx?Item=N82E16856167032 >> >> The benefits of LTSP are ease of administration, maintenance, >> affordability and energy efficiency. With Diskless remote booting >> these advantages are retained. But the traditional problems and >> difficulties in development of LTSP: remote sound, local devices >> (ltspfs), cpu hogs (flash), full screen video (network bottlenecks and >> sound sync), security (ssh tunnels, X latency), X caching pixmaps >> in local ram (firefox, OOo killing X).... they ALL disappear. >> >> One new problem does arise. The time to initially launch an app may be >> slightly increased. Since the app must be loaded from a remote disk, >> the network replaces the SATA cable. However, ram is so cheap, if you >> stick in 1GB on a client ($20), the 2.6 Linux kernel utilizes most of >> the ram by caching app memory. So if you launch FF, close it, then >> launch it again, it is much faster second time around. The slowest and >> most demanding event in a DRB lab would be boot time. However, this >> can be scheduled in a cron job (with WOL) to occur just before school >> opens in the morning. Problem solved. >> >> Fortunately, these new little boxes are shipping with 1000Mbps nics. >> In addition, full gigabit port switches are much more affordable than >> when they first came out. So for the future, as network switches get >> upgraded, this issue should dissapear. FAST disks on the server and a >> fat pipe to the switch would be optimal. SSD drives in the future may >> hold promise. >> >> The setup I describe above has been successfully implemented for an >> entire school district. Here >> http://www.sd73.bc.ca/district-operations.php/page/linux-in-education/ >> >> Most people who started using LTSP did so by re-using old computers (I >> still use PII's) as make shift thin clients. The cost of upgrading an >> entire lab was ONLY 1 server. It made sense. I still happily use >> K12LTSP today. >> >> But look at hardware technology/affordability today. I am in line for >> funding at the end of this school year. I am most likely going to buy >> a whole lab of Atom based systems much like the one linked above >> (hopefully the next gen). I wish I could install a Fedora or Ubuntu >> DRB distro. >> >> I hope LTSP developers and distros see this perspective. If others on >> this list agree or disagree please speak up as I want the general >> consensus to be known. >> > ******************************************************** > > The information transmitted is intended only for the person or entity to > which it is addressed and may contain confidential and/or privileged > material. If you are not the addressee, any disclosure, reproduction, > copying, distribution, or other dissemination or use of this transmission in > error please notify the sender immediately and then delete this e-mail. > E-mail transmission cannot be guaranteed to be secure or error free as > information could be intercepted, corrupted lost, destroyed, arrive late or > incomplete, or contain viruses. > The sender therefore does not accept liability for any errors or omissions > in the contents of this message which arise as a result of e-mail > transmission. If verification is required please request a hard copy > version. > > ******************************************************** > > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > From mlindman at charter.net Fri Sep 12 02:48:54 2008 From: mlindman at charter.net (Mark Lindman) Date: Thu, 11 Sep 2008 22:48:54 -0400 Subject: [K12OSN] Current "state of the art" in K12LTSP? Message-ID: <20080911224854.T21WZ.427120.root@mp07> Greetings, I'm replacing a K12ltsp Centos 5.2 system that was used last year by 6 students, with a pair of servers intended to support 30-40 sessions total. (ibm x345 dual 3.6Ghz 4G ram no drives $285 each). With a bunch of SCSI drives I figure they ought to do it. I plan to also set up a Fedora Directory server for authentication on another computer. I installed Edubuntu on the same 6 user system, but it I'm stumbling around some of the management as it's so different than the older ltsp. I also worry when I read of other folks real-world experience with it. k12ltsp Centos 5.2 has been very stable, but I'm tempted to leap to a ltsp 5 system. Would you use Centos 5.2, or do you think of Fedora 9 or openSuSE 11 or ??? with ltsp 5 is ready for "production"? One consideration is that it's a small school <200 students, I'm a 'volunteer' with a full-time job, and there is nobody on site most of the time to deal with anything that hangs/locks up, etc. so it needs to be pretty bullet-proof. Updates, new software, etc. I can do in my spare time. I have three days to get them built and delivered. Thoughts? From wtogami at redhat.com Fri Sep 12 04:09:00 2008 From: wtogami at redhat.com (Warren Togami) Date: Fri, 12 Sep 2008 00:09:00 -0400 Subject: [K12OSN] Re: LTSP-5 on RHEL-5 questions In-Reply-To: <7.0.0.16.2.20080910133528.03ff7d48@llnl.gov> References: <7.0.0.16.2.20080910133528.03ff7d48@llnl.gov> Message-ID: <48C9EB5C.2090104@redhat.com> REDACTED wrote: > Hi Warren, > > I hope you don't mind a few questions on LTSP-5. I work at REDACTED > REDACTED REDACTED ORG and have been tasked with investigating > using LSTP-5 clients on a network for scientists and > engineers who have some applications that require 3-D visualization. We > can deploy thick clients, but thin is easier to manage. At any rate, > clients are required to be diskless. Also, we are limited to using Red > Hat Enterprise Linux version 5. You do understand that due to limitations of RHEL5 combined with extremely limited time resources, the client operating systems you are booting by following those instructions is Fedora 9 right? > > That said, I followed the instructions that you outline for LTSP 5 on > RHEL 5. It works. I can get clients to boot and can get an LDM session > on the server. It's been fun learning and experimenting. I have some > questions. I realize you must get a lot of these types of e-mails. > Again, I hope you don't mind my imposition. Please understand that any work I do on RHEL5 is entirely on my spare time. I am really burning myself out trying to achieve goals for Fedora 10 and eventually RHEL6 official support for all this. Very behind schedule on the software deliverables, and especially documentation for all this. The version of ltsp built in my repository there and the F9 chroot tarball is 10 upstream versions ago. I began fixing bugs to make it possible to build the latest versions on RHEL5 again. I will try to test new builds of this to bring it up to a modern version this weekend. > > 1) My LDM session comes up fine. However, if I switch to another > virtual console (ctrl-alt-f5) for example to get a local shell and then > switch back to the console running the LDM session, the entire LDM > display shifts to off center by about half the width on the monitor. > Have you or anybody else seen this behavior? Can you suggest a fix or > way to troubleshoot it? Sounds like an X video driver bug. This is all nv video? I have personally not used nvidia hardware for ~7 years now because they have been the least convenient for Linux driver support, so I do not have any recommendations of a fix. You may want to report a bug against xorg-x11-drv-nv for Fedora 9. > > 2) We will be deploying some fairly high end client hardware - at least > a gigabyte of memory per client and an nvidia GEforce 8000 class video > card. Is there a way to configure LTSP clients to do more of the video > processing locally on these more capable video cards to speed up the > graphics? For example, I run "glxgears" on a server, displaying to the > console of a diskfull client. When I display it on an LTSP client, the > performance is much slower than the diskfull client. Note, that I am > using the nv driver and glx libraries that came in your LTSP 5 root tar > package. Right. nv has no 3D acceleration, so it would be significantly slower than real hardware acceleration. Please keep in mind that NVIDIA drivers are completely unsupported by Red Hat and the Fedora Project. They are closed source so we cannot possibly support it. That being said the following advice might be helpful. Also know that 3D over the network, while possible, is much slower than the application and X display on the same physical machine. > 2a - If I were to download the driver install package from nvidia and > install that, would my performance improve? > 2b - I actually tried to install the drivers from the nvidia install > package. It was a daunting task. I was not successful, since the > kernel and LTSP root for RHEL 5 are different from the RHEL 5 server's > kernel and root filesystem. I must have gotten the wrong location for > the nvidia glx library, because it broke glx. Basically, I tried > running the nvidia install script as: > > sh ./NVIDIA-Linux-x86-173.14.12-pkg1.run > --x-module-path=/opt/ltsp/i386/usr/lib/xorg/ > --x-library-path=/opt/ltsp/i386/usr/lib \ > --x-prefix=/opt/ltsp/i386/usr/X11R6 > --utility-prefix=/opt/ltsp/i386/usr > --kernel-source-path=/usr/src/kernels/2.6.25.10-86.fc9.i586 \ > --kernel-install-path=/opt/ltsp/i386/lib/modules/2.6.25.10-86.fc9.i586/kernel/drivers/video/nvidia > --kernel-name=2.6.25.10-86.fc9.i586 \ > --no-runlevel-check --no-x-check > http://rpm.livna.org/rlowiki/ You are essentially booting Fedora 9 read-only roots on your thin clients. Your best bet is to use Livna to get NVIDIA rpms of the kernel module and X drivers for a matching Fedora 9 kernel in your chroot. Luckily it appears that their repo has i586 kernel module builds to match the i586 kernel in the LTSP chroot. Another issue that you will run into: The LTSP clients with read-only root have no xorg.conf by default. Normally X autodetects what video card you have and uses a matching driver for your card. But since nvidia is a non-standard driver, it cannot be autodetected and autoconfigured in this manner. There is a workaround for this. lts.conf has an option X_CONF where you can specify the path of an alternate xorg.conf file. You could create something like /opt/ltsp/i386/etc/X11/xorg-nvidia.conf and have lts.conf point at it. That config file could have only the minimum necessary sections to specify the nvidia driver, and it can attempt to autodetect everything else like monitor resolution and input devices. > > Would I also need to add the NVIDIA kernel module to the initrd image? > Does "ltsp-update-kernels" do that, or does it simply copy the kernel > and initrd from /opt/ltsp/i386/boot? ltsp-update-kernels will only copy the initrd images from /boot of the client chroot into the tftpboot directory that is used during PXE booting. AFAIK, nvidia kernel modules are not needed in the initrd. Warren Togami wtogami at redhat.com From wtogami at redhat.com Fri Sep 12 04:27:46 2008 From: wtogami at redhat.com (Warren Togami) Date: Fri, 12 Sep 2008 00:27:46 -0400 Subject: [K12OSN] Current "state of the art" in K12LTSP? In-Reply-To: <20080911224854.T21WZ.427120.root@mp07> References: <20080911224854.T21WZ.427120.root@mp07> Message-ID: <48C9EFC2.5080407@redhat.com> Mark Lindman wrote: > Greetings, > > I'm replacing a K12ltsp Centos 5.2 system that was used last year by > 6 students, with a pair of servers intended to support 30-40 sessions > total. (ibm x345 dual 3.6Ghz 4G ram no drives $285 each). With a > bunch of SCSI drives I figure they ought to do it. I plan to also > set up a Fedora Directory server for authentication on another > computer. > > I installed Edubuntu on the same 6 user system, but it I'm stumbling > around some of the management as it's so different than the older > ltsp. I also worry when I read of other folks real-world experience > with it. k12ltsp Centos 5.2 has been very stable, but I'm tempted to > leap to a ltsp 5 system. Would you use Centos 5.2, or do you think > of Fedora 9 or openSuSE 11 or ??? with ltsp 5 is ready for > "production"? > > One consideration is that it's a small school <200 students, I'm a > 'volunteer' with a full-time job, and there is nobody on site most of > the time to deal with anything that hangs/locks up, etc. so it needs > to be pretty bullet-proof. Updates, new software, etc. I can do in > my spare time. I have three days to get them built and delivered. > CentOS 5.2 based K12LTSP at the moment is very well proven. If you have 3 days to install it and confirm it is working properly then it is the safest choice. https://fedorahosted.org/k12linux/ The K12Linux project is successor to K12LTSP. Based on Fedora 9 technology it is far more capable on more hardware and with a wider variety of software application opportunities. It has proven to be fairly stable in testing. My main warning to folks deploying this (especially in a rush) is to be aware of the Fedora 9 maintenance life cycle. Fedora 9 updates ends 1 month after the release of Fedora 11. That means theoretically you would want to upgrade possibly during the Summer 2009 before the next school year. CentOS being based on RHEL5 will enjoy security updates for ~5+ more years now. http://wtogami.livejournal.com/27610.html The Live LTSP Server Beta 1 could allow you to (within 10 minutes or so) test Fedora 9 with LTSP5 technology, booting all of your existing clients without reinstalling the CentOS 5.2 server. Within 30 minutes you could reinstall the server from this image. https://fedorahosted.org/k12linux/ Newer versions with a pile of many minor bug fixes and additional functionality is now available from Fedora Updates. I am working on Beta 2 of the above media image hopefully for release next week. Warren Togami wtogami at redhat.com From microman at cmosnetworks.com Fri Sep 12 04:29:41 2008 From: microman at cmosnetworks.com (Terrell Prude' Jr.) Date: Fri, 12 Sep 2008 00:29:41 -0400 Subject: [K12OSN] A New direction for LTSP: Diskless Remote Boot In-Reply-To: References: <48C77DB9.550C.0078.0@leopards.k12.ar.us> Message-ID: <200809120029.41503.microman@cmosnetworks.com> +1 on that. The demos that I do are for overseas US State Dept. schools that, to my utter surprise, don't have a big budget, despite the fact that they're the schools where diplomats' kids go. Go figure. I've had two such schools convert to K12LTSP precisely because they could reuse existing hardware. They're typically using Pentium II-450 boxes as EtherBooting LTSP thin clients (boxes of that vintage often don't support PXE). Hell, here at home, that's what I run! Half of my thin clients are Pentium-MMX 233MHz boxes, with souped-up AGP video cards (Matrox Milleniums, ATI Radeons) and 3Com 3C905 NIC's. Oh, and they have 64MB DRAM. My "powerful" thin client is an AMD K6-2/450 with 256MB DRAM. C'mon, you think I don't practice what I preach? :-) We should still continue to support such hardware in pure "dumb terminal" mode as LTSP does now. --TP On Thursday 11 September 2008 18:24, Joseph Bishay wrote: > I just wanted to add my voice to what Doug said here. > > It was specifically because I could use the currently existing (and at > the time, very old) hardware without any investment other than burning > a couple of CDs and my time educating myself about LTSP that I was > able to, very quickly, bring life to a old, dead, computer lab. I > know I would have never been able to receive the approval for even > $100 to try out this new 'Linux' thing. I would have been told "why > waste the money -- just put it into Windows." It was because I was > able to do it at no cost, that the funding was approved for the $2000 > server (5 years ago) for LTSP. And this lab still runs now, with old > hardware, and not in a developing world, but in Canada at a non-profit > organization serving the kids. > > I would urge you not to forget about that large user-base in a similar > situation who's first introduction into this brilliant solution comes > from the no-barrier entry fee. > > Thanks > Joseph > > > > On Wed, Sep 10, 2008 at 8:56 AM, Doug Simpson > > wrote: > > HEAR! HEAR! > > > > The very reason I started with K12LTSP was the fact that I *could* use > > old hardware and make it usable again. > > > > As it progresses, though, it is getting harder and harder to use the > > older hardware. One of the key selling points early on was that you could > > use the same hardware for the clients for many years and just upgrade the > > server/software and use it for many years. This is not turning out to be > > the case. > > > > For example, I used to use a 486-dx33 with 28MB RAM as a client for my > > grandyounguns and it worked very well up until FC3. From then on, it > > because unusable. Granted, a 486 is pretty archaic, but it *was* usable > > is my point. > > > > Now it is hard to even get PII computers to work if they don't support > > etherboot natively, or if they don't have specific network cards in them. > > And forget trying to run any client with less than 64MB RAM. > > > > So, as it turns out, the client-side hardware will still need to be > > cycled every few years anyway. . . > > > > But, kudos to the guys that are developing this wonderful system called > > K12LTSP, and the LTSP project(s) in general. > > > > JMHO - YMMV > > > > Doug > > > > Doug Simpson > > Technology Specialist > > De Queen Public Schools > > De Queen, AR > > simpsond at leopards.k12.ar.us > > "A Dollar Saved is a Dollar Earned" > > > >>>> Rob Owens 9/10/2008 7:14 AM >>> > > > > I agree with most of your arguments in principle. For me, DRBL could be > > a potential alternative to LTSP. > > > > However, the Atom-based unit you mention uses a 65 watt power supply (I > > didn't see specs on the actual power consumption). That's small > > compared to a traditional desktop, but it's huge compared to the 6 watt > > thin clients I'm using. > > > > $150 (plus some money for RAM) doesn't seem like much to me to spend on > > this Atom-based unit, but I live in a developed country and have a good > > job. In lots of other parts of the world, $150 is unaffordable. Those > > places need to be able to use a 200MHz P2 with 32MB of RAM as a thin > > client. Heck, back when I started using LTSP, I needed to use a P2 as a > > thin client because I couldn't afford to buy something for my "little > > experiment". > > > > That brings me to another point. LTSP is enticing and is easy to try > > out because you can do it without spending any money -- you simply use > > some old junk. If it required a $200 or more investment just to try it > > out, would we see the same level of adoption? Granted, in the developed > > world $200 isn't much, but I still think it could be a barrier to > > adoption. Plenty of people will "try out this linux thing" if it > > doesn't cost anything, but how many people would buy a $150-$200 > > diskless workstation in order to "try out this linux thing". That > > diskless workstation won't even run Windows XP if their little linux > > experiment fails, so that would be money wasted. I think many people > > won't take the chance, and that would be a shame. > > > > So I guess I'm saying that DRBL-like capability would be a great > > addition, but I would hate to see the main focus of LTSP turn away from > > low-spec thin clients. > > > > -Rob > > > > Robert Arkiletian wrote: > >> Hello list, > >> > >> I know local app support is in the works BUT > >> > >> I'm wondering if anyone else is thinking it would be a good idea to > >> have an option (or even a distro) which runs EVERYTHING on the client. > >> Much like DRBL http://drbl.sourceforge.net/. The reason for my > >> suggestion is that I feel the days of Terminal Servers are numbered. > >> With the advent of Intel Atom like cpus, it now becomes possible to > >> retain the energy efficiency of previous generation thin clients AND > >> have enough cpu muscle to run a full desktop. As time goes on these > >> cpus are only going to get faster. They are already fast enough and > >> very affordable. > >> > >> http://www.newegg.com/Product/Product.aspx?Item=N82E16856167032 > >> > >> The benefits of LTSP are ease of administration, maintenance, > >> affordability and energy efficiency. With Diskless remote booting > >> these advantages are retained. But the traditional problems and > >> difficulties in development of LTSP: remote sound, local devices > >> (ltspfs), cpu hogs (flash), full screen video (network bottlenecks and > >> sound sync), security (ssh tunnels, X latency), X caching pixmaps > >> in local ram (firefox, OOo killing X).... they ALL disappear. > >> > >> One new problem does arise. The time to initially launch an app may be > >> slightly increased. Since the app must be loaded from a remote disk, > >> the network replaces the SATA cable. However, ram is so cheap, if you > >> stick in 1GB on a client ($20), the 2.6 Linux kernel utilizes most of > >> the ram by caching app memory. So if you launch FF, close it, then > >> launch it again, it is much faster second time around. The slowest and > >> most demanding event in a DRB lab would be boot time. However, this > >> can be scheduled in a cron job (with WOL) to occur just before school > >> opens in the morning. Problem solved. > >> > >> Fortunately, these new little boxes are shipping with 1000Mbps nics. > >> In addition, full gigabit port switches are much more affordable than > >> when they first came out. So for the future, as network switches get > >> upgraded, this issue should dissapear. FAST disks on the server and a > >> fat pipe to the switch would be optimal. SSD drives in the future may > >> hold promise. > >> > >> The setup I describe above has been successfully implemented for an > >> entire school district. Here > >> http://www.sd73.bc.ca/district-operations.php/page/linux-in-education/ > >> > >> Most people who started using LTSP did so by re-using old computers (I > >> still use PII's) as make shift thin clients. The cost of upgrading an > >> entire lab was ONLY 1 server. It made sense. I still happily use > >> K12LTSP today. > >> > >> But look at hardware technology/affordability today. I am in line for > >> funding at the end of this school year. I am most likely going to buy > >> a whole lab of Atom based systems much like the one linked above > >> (hopefully the next gen). I wish I could install a Fedora or Ubuntu > >> DRB distro. > >> > >> I hope LTSP developers and distros see this perspective. If others on > >> this list agree or disagree please speak up as I want the general > >> consensus to be known. > > > > ******************************************************** > > > > The information transmitted is intended only for the person or entity to > > which it is addressed and may contain confidential and/or privileged > > material. If you are not the addressee, any disclosure, reproduction, > > copying, distribution, or other dissemination or use of this transmission > > in error please notify the sender immediately and then delete this > > e-mail. E-mail transmission cannot be guaranteed to be secure or error > > free as information could be intercepted, corrupted lost, destroyed, > > arrive late or incomplete, or contain viruses. > > The sender therefore does not accept liability for any errors or > > omissions in the contents of this message which arise as a result of > > e-mail transmission. If verification is required please request a hard > > copy version. > > > > ******************************************************** > > > > > > _______________________________________________ > > K12OSN mailing list > > K12OSN at redhat.com > > https://www.redhat.com/mailman/listinfo/k12osn > > For more info see > > > > _______________________________________________ > > K12OSN mailing list > > K12OSN at redhat.com > > https://www.redhat.com/mailman/listinfo/k12osn > > For more info see > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see From microman at cmosnetworks.com Fri Sep 12 04:43:58 2008 From: microman at cmosnetworks.com (Terrell Prude' Jr.) Date: Fri, 12 Sep 2008 00:43:58 -0400 Subject: [K12OSN] Current "state of the art" in K12LTSP? In-Reply-To: <20080911224854.T21WZ.427120.root@mp07> References: <20080911224854.T21WZ.427120.root@mp07> Message-ID: <200809120043.58453.microman@cmosnetworks.com> On Thursday 11 September 2008 22:48, Mark Lindman wrote: > Greetings, > > I'm replacing a K12ltsp Centos 5.2 system that was used last year by 6 > students, with a pair of servers intended to support 30-40 sessions total. > (ibm x345 dual 3.6Ghz 4G ram no drives $285 each). With a bunch of SCSI > drives I figure they ought to do it. I plan to also set up a Fedora > Directory server for authentication on another computer. > > I installed Edubuntu on the same 6 user system, but it I'm stumbling around > some of the management as it's so different than the older ltsp. I also > worry when I read of other folks real-world experience with it. k12ltsp > Centos 5.2 has been very stable, but I'm tempted to leap to a ltsp 5 > system. Would you use Centos 5.2, or do you think of Fedora 9 or openSuSE > 11 or ??? with ltsp 5 is ready for "production"? > > One consideration is that it's a small school <200 students, I'm a > 'volunteer' with a full-time job, and there is nobody on site most of the > time to deal with anything that hangs/locks up, etc. so it needs to be > pretty bullet-proof. Updates, new software, etc. I can do in my spare > time. I have three days to get them built and delivered. > > Thoughts? Sounds to me like you've already answered your own question. As you've pointed out above, K12LTSP 5EL is tried 'n' true, and it requires exceedingly little maintenance. Given the staffing situation that you describe in your last paragraph, I'd go with tried 'n' true. You don't want anybody being able to say, "see, your 'Linux thing' failed, let's go back to Windows! Waaaah!" Don't laugh; that actually happens. It all boils down to what you want more. Do you want the chrome 1980's Cadillac that looks sparkly and pretty, but might require lots of maintenance? Or would you prefer that Honda Accord that might not be *quite* as chromed, but will get you there and back every time? Personally, I pick the Accord, especially in production, and in this case, the Accord is K12LTSP 5EL. And as for that Fedora Directory Server...make it a CentOS Directory Server. You don't need to upgrade your production LDAP server's OS every year. I use the following rule: workstations get Fedora or Ubuntu, servers get CentOS/RHEL or Debian. --TP From tux_rocker at reinier.de Fri Sep 12 11:23:27 2008 From: tux_rocker at reinier.de (Reinier Lamers) Date: Fri, 12 Sep 2008 13:23:27 +0200 Subject: [K12OSN] K12Linux Logo Ideas In-Reply-To: References: <48C56F4D.6090802@redhat.com> Message-ID: 2008/9/8 Nils Breunese : > Warren Togami wrote: > >> http://people.redhat.com/duffy/tmp/k12ideas.png >> >> Maureen Duffy, leader of the Fedora Art team and Interaction Designer at >> Red Hat worked on these mockups for a new K12Linux logo. This would be >> for the LDM login screen, with an attractive but subtle blue background >> behind it. >> >> How do people feel about the different options here? >> >> http://people.redhat.com/duffy/tmp/k12-white_bg_ex.png >> Here is an example of the same logo with a white background, for the >> Trac top-left logo and print on paper. > > I know it was built use in for schools, but it's just as nice to use in a > university student organisation (where I set it up), at home or in a > business, so I never saw the point of the K12 prefix. But seeing how K12 > doesn't really mean anything here in the Netherlands I guess I shouldn't > make a lot of fuss about it. :o) What does K12 mean in the US anyway? I never heard of it in an educational context before even though I'm quite immersed in American culture via the internet, and en.wikipedia.org/wiki/K12 is only about the mountain peak. It could mean Kindergarten-to-12, but why you would be too old for K12 at 13 is beyond me :-) Reinier From scott at hosef.org Fri Sep 12 11:31:26 2008 From: scott at hosef.org (R.Scott Belford) Date: Fri, 12 Sep 2008 01:31:26 -1000 Subject: [K12OSN] K12Linux Logo Ideas In-Reply-To: References: <48C56F4D.6090802@redhat.com> Message-ID: On Fri, Sep 12, 2008 at 1:23 AM, Reinier Lamers wrote: > What does K12 mean in the US anyway? I never heard of it in an > educational context before even though I'm quite immersed in American > culture via the internet, and en.wikipedia.org/wiki/K12 is only about > the mountain peak. > > It could mean Kindergarten-to-12, but why you would be too old for K12 > at 13 is beyond me :-) What a lesson in Geography and Ethnocentrism. :-) In the US, students attend 12 'grades', each requiring one calendar year, before going to a College or University. These 12 grades come after Kindergarten, hence the K12 moniker. I wonder if there is a better name given that this is a global OS? > > Reinier --scott From rob.owens at biochemfluidics.com Fri Sep 12 11:34:16 2008 From: rob.owens at biochemfluidics.com (Rob Owens) Date: Fri, 12 Sep 2008 07:34:16 -0400 Subject: [K12OSN] Current "state of the art" in K12LTSP? In-Reply-To: <20080911224854.T21WZ.427120.root@mp07> References: <20080911224854.T21WZ.427120.root@mp07> Message-ID: <48CA53B8.8060707@biochemfluidics.com> Personally I wouldn't consider changing to LTSP 5 unless there's some specific improvement that you're looking for. For instance, if you needed to have all traffic between the clients and server to be encrypted, then you might want to consider LTSP 5. If you run into frequent problems with unsupported thin clients, then you might want to try LTSP 5. If you don't have these kind of needs, then I'd stick with LTSP 4.2 for now, which means CentOS-based K12LTSP 5.2 EL -Rob Mark Lindman wrote: > Greetings, > > I'm replacing a K12ltsp Centos 5.2 system that was used last year by 6 students, with a pair of servers intended to support 30-40 sessions total. (ibm x345 dual 3.6Ghz 4G ram no drives $285 each). With a bunch of SCSI drives I figure they ought to do it. I plan to also set up a Fedora Directory server for authentication on another computer. > > I installed Edubuntu on the same 6 user system, but it I'm stumbling around some of the management as it's so different than the older ltsp. I also worry when I read of other folks real-world experience with it. k12ltsp Centos 5.2 has been very stable, but I'm tempted to leap to a ltsp 5 system. Would you use Centos 5.2, or do you think of Fedora 9 or openSuSE 11 or ??? with ltsp 5 is ready for "production"? > > One consideration is that it's a small school <200 students, I'm a 'volunteer' with a full-time job, and there is nobody on site most of the time to deal with anything that hangs/locks up, etc. so it needs to be pretty bullet-proof. Updates, new software, etc. I can do in my spare time. I have three days to get them built and delivered. > > Thoughts? > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** From rob.owens at biochemfluidics.com Fri Sep 12 11:43:33 2008 From: rob.owens at biochemfluidics.com (Rob Owens) Date: Fri, 12 Sep 2008 07:43:33 -0400 Subject: [K12OSN] Setting up FC9 LTSP5 and Active Directory integration In-Reply-To: <48C92978020000FC00008D8A@dpsd-email-2.deerpark.wednet.edu> References: <48C92978020000FC00008D8A@dpsd-email-2.deerpark.wednet.edu> Message-ID: <48CA55E5.6020203@biochemfluidics.com> FYI, I'm using K12LTSP 5EL, which is based on CentOS and LTSP 4.2. It has Firefox 3 and OpenOffice 2.3. I'm also authenticating off of Active Directory. -Rob Steve Krause wrote: > I am trying to setup several LTSP servers for our school district. I have previously setup a couple on FC6 and LTSP 4.2 and they are workable, but trying to upgrade OpenOffice.org and Firefox has been problematic. I would like to build new servers on FC9 and LTSP 5. The hitch is configuring Active Directory integration to allow students and staff to login using existing AD accounts and accessing the existing home directories. It works well on the FC6 servers, but I am having no luck on FC9. I heard there are problems with the version of Samba that comes with FC9 connecting to Win2003 AD. > > I have the set of files modified for FC6 from /etc, /etc/pam.d, /etc/samba, /etc/security and have tranferred them to the FC9 server. Following all the same steps, client logons appear to work and even create home folders, but then the client drops back to the DM login screen. > > We are also trying to use KDE and Kiosk Admin Tool to manage/lockdown the student desktops. > > Any help on either of these fronts, but especially the AD logins, would be greatly appreciated. > > Thanks in advance. > > > Steve Krause, CNE > Network Manager > Deer Park School District #414 > Deer Park, WA > (509) 464-5567 > krauses at deerpark.wednet.edu > > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** From lewis at pcc.com Fri Sep 12 11:55:29 2008 From: lewis at pcc.com (Lewis Holcroft) Date: Fri, 12 Sep 2008 07:55:29 -0400 Subject: [K12OSN] Current "state of the art" in K12LTSP? In-Reply-To: <20080911224854.T21WZ.427120.root@mp07> References: <20080911224854.T21WZ.427120.root@mp07> Message-ID: <2A90294D-DF53-4E47-AA14-E0E43B8683AA@pcc.com> Mark, I work in an environment that is almost completly Linux based. We use Linux based servers for our applications and have used *nix for close to 25 years. So we have a good deal of knowledge. That said I have chosen to use k12ltsp for one very good reason. Life cycle. Knowing that the base OS is going to be maintained by the upstream vendor for at least three years Lewis On Sep 11, 2008, at 10:48 PM, Mark Lindman wrote: > Greetings, > > I'm replacing a K12ltsp Centos 5.2 system that was used last year by > 6 students, with a pair of servers intended to support 30-40 > sessions total. (ibm x345 dual 3.6Ghz 4G ram no drives $285 each). > With a bunch of SCSI drives I figure they ought to do it. I plan to > also set up a Fedora Directory server for authentication on another > computer. > > I installed Edubuntu on the same 6 user system, but it I'm stumbling > around some of the management as it's so different than the older > ltsp. I also worry when I read of other folks real-world experience > with it. k12ltsp Centos 5.2 has been very stable, but I'm tempted > to leap to a ltsp 5 system. Would you use Centos 5.2, or do you > think of Fedora 9 or openSuSE 11 or ??? with ltsp 5 is ready for > "production"? > > One consideration is that it's a small school <200 students, I'm a > 'volunteer' with a full-time job, and there is nobody on site most > of the time to deal with anything that hangs/locks up, etc. so it > needs to be pretty bullet-proof. Updates, new software, etc. I can > do in my spare time. I have three days to get them built and > delivered. > > Thoughts? > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see From dahopkins429 at gmail.com Fri Sep 12 12:24:45 2008 From: dahopkins429 at gmail.com (David Hopkins) Date: Fri, 12 Sep 2008 08:24:45 -0400 Subject: [K12OSN] Current "state of the art" in K12LTSP? In-Reply-To: <2A90294D-DF53-4E47-AA14-E0E43B8683AA@pcc.com> References: <20080911224854.T21WZ.427120.root@mp07> <2A90294D-DF53-4E47-AA14-E0E43B8683AA@pcc.com> Message-ID: On Fri, Sep 12, 2008 at 7:55 AM, Lewis Holcroft wrote: > Mark, > > I work in an environment that is almost completly Linux based. We use Linux > based servers for our applications and have used *nix for close to 25 years. > So we have a good deal of knowledge. That said I have chosen to use k12ltsp > for one very good reason. Life cycle. > Knowing that the base OS is going to be maintained by the upstream vendor > for at least three years > I will also second (third/fourth) the stay with the tried-and-true given your timeline and needs. Unless there is a specific absolutely must-have need that is solved by LTSP5, then stay with LTSP4.2 and CentOS. Then, test the FC9 version and verify it works and is stable before deploying it if that is where you want to get. I have tried the latest-greatest approach and now opt for stable and 'just works'. Like you, I am a volunteer at the school I support and have a rather larger support base (1300 students, 100+ staff) and CentOS with LTSP allows me to keep it running with the help of the school's tech coordinator for handling mid-day issues via the phone. Sincerely, Dave Hopkins From dvanassche at gmail.com Fri Sep 12 13:02:42 2008 From: dvanassche at gmail.com (David Van Assche) Date: Fri, 12 Sep 2008 15:02:42 +0200 Subject: [K12OSN] Current "state of the art" in K12LTSP? In-Reply-To: References: <20080911224854.T21WZ.427120.root@mp07> <2A90294D-DF53-4E47-AA14-E0E43B8683AA@pcc.com> Message-ID: <8cc423ef0809120602s1cd87258hcd507bc33920703c@mail.gmail.com> What we should realise is that ltsp 4.2 is no longer supported, and even the original author recommends upgrading to 5.0. People need to test 5.0 to get all the bugs out too... not that it is THAT buggy... its actually quite stable... rumours aside... David Van Assche On Fri, Sep 12, 2008 at 2:24 PM, David Hopkins wrote: > On Fri, Sep 12, 2008 at 7:55 AM, Lewis Holcroft wrote: >> Mark, >> >> I work in an environment that is almost completly Linux based. We use Linux >> based servers for our applications and have used *nix for close to 25 years. >> So we have a good deal of knowledge. That said I have chosen to use k12ltsp >> for one very good reason. Life cycle. >> Knowing that the base OS is going to be maintained by the upstream vendor >> for at least three years >> > > I will also second (third/fourth) the stay with the tried-and-true > given your timeline and needs. Unless there is a specific absolutely > must-have need that is solved by LTSP5, then stay with LTSP4.2 and > CentOS. Then, test the FC9 version and verify it works and is stable > before deploying it if that is where you want to get. I have tried > the latest-greatest approach and now opt for stable and 'just works'. > Like you, I am a volunteer at the school I support and have a rather > larger support base (1300 students, 100+ staff) and CentOS with LTSP > allows me to keep it running with the help of the school's tech > coordinator for handling mid-day issues via the phone. > > Sincerely, > Dave Hopkins > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > From jones_yeates at hotmail.com Fri Sep 12 19:03:31 2008 From: jones_yeates at hotmail.com (jones yeates) Date: Fri, 12 Sep 2008 19:03:31 +0000 Subject: [K12OSN] W3C XHTML validator Message-ID: I tried to install a w3c xhtml validator on my server so that I could check the students' pages using that. However I'm having trouble installing it. I tried yum install w3c-markup-validator and it is not in the repositories. I was wondering if anyone else has tried to install it and how they did it. Thanks. _________________________________________________________________ From robark at gmail.com Fri Sep 12 18:20:27 2008 From: robark at gmail.com (Robert Arkiletian) Date: Fri, 12 Sep 2008 11:20:27 -0700 Subject: [K12OSN] A New direction for LTSP: Diskless Remote Boot In-Reply-To: <200809120029.41503.microman@cmosnetworks.com> References: <48C77DB9.550C.0078.0@leopards.k12.ar.us> <200809120029.41503.microman@cmosnetworks.com> Message-ID: On Thu, Sep 11, 2008 at 9:29 PM, Terrell Prude' Jr. wrote: > +1 on that. The demos that I do are for overseas US State Dept. schools that, > to my utter surprise, don't have a big budget, despite the fact that they're > the schools where diplomats' kids go. Go figure. > > I've had two such schools convert to K12LTSP precisely because they could > reuse existing hardware. They're typically using Pentium II-450 boxes as > EtherBooting LTSP thin clients (boxes of that vintage often don't support > PXE). All of you make good points. As I replied earlier, I am not suggesting that we remove any functionality but rather see if we can *add* an option to k12linux where we can boot in diskless workstation mode based on mac address. That way you don't have to choose one or the other for an entire lab. If you had some newer machines, you could specify by mac which ones would work as regular ltsp and which by diskless workstation mode. -- Robert Arkiletian Eric Hamber Secondary, Vancouver, Canada Fl_TeacherTool http://www3.telus.net/public/robark/Fl_TeacherTool/ C++ GUI tutorial http://www3.telus.net/public/robark/ From dyoung at mesd.k12.or.us Fri Sep 12 20:22:22 2008 From: dyoung at mesd.k12.or.us (Dan Young) Date: Fri, 12 Sep 2008 13:22:22 -0700 Subject: [K12OSN] W3C XHTML validator In-Reply-To: References: Message-ID: <994441ae0809121322s75cc4f10wa5c9e829172c36b5@mail.gmail.com> What distro are you using? I see it in the Fedora 9 repo. If it is not available for your distro, tidy might be a good alternative. Assuming you're using K12LTSP 5EL, it is in the EPEL repository: http://download.fedora.redhat.com/pub/epel/5/i386/repoview/tidy.html How to use EPEL: http://fedoraproject.org/wiki/EPEL Then: tidy -e foo.html -- Dan Young Multnomah ESD - Technology Services 503-257-1562 On Fri, Sep 12, 2008 at 12:03 PM, jones yeates wrote: > > I tried to install a w3c xhtml validator on my server so that I could check the students' pages using that. However I'm having trouble installing it. I tried yum install w3c-markup-validator and it is not in the repositories. I was wondering if anyone else has tried to install it and how they did it. > > Thanks. > _________________________________________________________________ > > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > From rgibson57 at earthlink.net Fri Sep 12 23:40:19 2008 From: rgibson57 at earthlink.net (Rita Gibson) Date: Fri, 12 Sep 2008 17:40:19 -0600 Subject: [K12OSN] A New direction for LTSP: Diskless Remote Boot In-Reply-To: References: <48C77DB9.550C.0078.0@leopards.k12.ar.us> <200809120029.41503.microman@cmosnetworks.com> Message-ID: <48CAFDE3.1090305@earthlink.net> Robert Arkiletian wrote: > On Thu, Sep 11, 2008 at 9:29 PM, Terrell Prude' Jr. > wrote: > >> +1 on that. The demos that I do are for overseas US State Dept. schools that, >> to my utter surprise, don't have a big budget, despite the fact that they're >> the schools where diplomats' kids go. Go figure. >> >> I've had two such schools convert to K12LTSP precisely because they could >> reuse existing hardware. They're typically using Pentium II-450 boxes as >> EtherBooting LTSP thin clients (boxes of that vintage often don't support >> PXE). >> > > All of you make good points. As I replied earlier, I am not suggesting > that we remove any functionality but rather see if we can *add* an > option to k12linux where we can boot in diskless workstation mode > based on mac address. > > That way you don't have to choose one or the other for an entire lab. > If you had some newer machines, you could specify by mac which ones > would work as regular ltsp and which by diskless workstation mode. > I have to say that we would absolutely find a diskless workstation mode useful. I have been wanting to respond to this thread all week, but have hesitated. I live in a city that has a very robust school donation program from which we can get nearly new machines from very high tech companies. I can think of a few apps that totally bog down our lab (25 clients) when everyone uses the same app -- tuxmath for one. If we could use a diskless workstation mode when using these types of applications, it would be awesome. Robert, maybe you should change the subject line to A New Addition to LTSP; Diskless Remote Boot instead of A New Direction. Rita Gibson RMSELTech From jkinney at localnetsolutions.com Sat Sep 13 01:26:53 2008 From: jkinney at localnetsolutions.com (James P. Kinney III) Date: Fri, 12 Sep 2008 21:26:53 -0400 Subject: [K12OSN] LTSP Lab Slow to Boot In-Reply-To: References: <20080905160038.DEC2A8E0F01@hormel.redhat.com> Message-ID: <1221269213.6781.13.camel@merlin.localnetsolutions.com> Based on the studies I and others have done, a 100Mb line from the server to the clients will support up to 10 clients _at_idle_. The bandwidth of a live X connection is simply too high to support more. You can do about 70 on a single Gb line. Each TC eats about 7Mb for an idle connection. Load up Firefox with flash on a web page or a big heavyweight like Gcompris of TuxMath and the bandwidth soars to 50-70 Mb Now add to this that the connection between each client and the server is fully encrypted. The encryption adds to the load about an additional 5-8% plus a pile of CPU overhead on both ends. You need to use Gb NIC(s) on the server and a switch with a Gbit port for each Gbit NIC on the server. Then you can do NIC bonding and get some bandwidth downstream. If you get a managed switch, look for 802.3ad capability as that is hardware support for link aggregation (joins 2 or more ports to make a FAST pipe!). Otherwise use bonding mode 4 or 5 (which is switch independent). On Fri, 2008-09-05 at 12:52 -0400, Crampton, Stephen C. wrote: > The information contained in this message may be privileged and confidential and protected from disclosure. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by replying to the message and deleting it from your computer. Under Florida law, e-mail addresses are public records. If you do not want your e-mail address released in response to a public-records request, do not send electronic mail to this entity. Instead, contact this office by phone or in writing. > _______________________________________________ K12OSN mailing list K12OSN at redhat.com https://www.redhat.com/mailman/listinfo/k12osn For more info see -- James P. Kinney III CEO & Director of Engineering Local Net Solutions,LLC http://www.localnetsolutions.com GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics) Fingerprint = 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7 -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. From jkinney at localnetsolutions.com Sat Sep 13 01:36:21 2008 From: jkinney at localnetsolutions.com (James P. Kinney III) Date: Fri, 12 Sep 2008 21:36:21 -0400 Subject: [K12OSN] LTSP Lab Slow to Boot In-Reply-To: <48C21970.50403@togami.com> References: <20080905160038.DEC2A8E0F01@hormel.redhat.com> <273E5FE24F52475E91BDCD09B13E4D93@acerpc> <48C21970.50403@togami.com> Message-ID: <1221269781.6781.23.camel@merlin.localnetsolutions.com> On Sat, 2008-09-06 at 01:47 -0400, Warren Togami wrote: > Moon wrote: > > Warren, here is another person that is having the same problems I had with > > Edubuntu 8.04.1. Note that the same issues with the DHCP server; not working > > or working very slowly. > > Quite frankly, I don't care if someone has a problem on Edubuntu. It is > like complaining to the Toyota dealer about a problem with your Chevrolet. > > I do want to know if you have the same problem on K12LTSP or K12Linux > though. I greatly prefer the K12Linux/L12LTSP5EL over the Edubuntu flavors myself, but the issue he has is only partially related to the toyota on a corvette forum. Given the bandwidth over capacity, the DHCP will fail on ANY platform. The Toyota failure is the ssh encryption that edubuntu uses for the X connection. This is school data not medical records! Encrypt the login and just send the rest raw. People: you MUST do some engineering on these installations. You can't just expect every machine you have to run off a crappy little network/server/used hard drive, etc. The TC environment is CPU intensive, VERY RAM INTENSIVE and a substantial impact on network bandwidth. I've been there, done that and I can't emphasize enough to spend the $$ on the server and switches and go cheap on the clients. The little, tiny clients will not drain the network as badly as they run slower and can't be such hogs. If the clients are 2GHz machines, that X server is gonna FLY!! Which means it's pounding the server for data. > > Warren Togami > wtogami at redhat.com > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > -- James P. Kinney III CEO & Director of Engineering Local Net Solutions,LLC http://www.localnetsolutions.com GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics) Fingerprint = 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7 -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. From jkinney at localnetsolutions.com Sat Sep 13 01:52:40 2008 From: jkinney at localnetsolutions.com (James P. Kinney III) Date: Fri, 12 Sep 2008 21:52:40 -0400 Subject: [K12OSN] eth0 and eth1 In-Reply-To: <4D77975E354648F48BADAC189487BE71@acerpc> References: <4D77975E354648F48BADAC189487BE71@acerpc> Message-ID: <1221270760.6781.34.camel@merlin.localnetsolutions.com> To add fun the eth0 or eth1 numbering madness, the initial ordering during install is based on hardware initialization order. That order is based on PCI bus addressing. Most system number devices physically closer to the southbridge chip lower than than those further away. So a PCI slot at the "bottom" of the board would be started later that one at the "top" of the board. BUT (!!!) some board have PCI slots on bus 0 and mobo parts on bus 1. Some boards have dual PCI bus's and alternate numbering on the slots (gigabyte with a few Intel chips). Some reverse all of this ad number up from the bottom of the board (thanks for the ulcer, HP). The key thing is you can change things once installed. If you have a 10/100 NIC that should be the upstream line, you can change it to be that way. /sbin/ifconfig will show the ports and their IP addresses. /etc/sysconfig/network-scripts has files ifcfg-eth0, ifcfg-eth1, etc. Make backup copies, change the name, edit the file and change the name IN the file Very Important!) and tweak /etc/modprobe.conf. And do yourself a favor: put a label on the outside of the box on the NIC itself saying eth0, IP address and MAC address. A label machine or a nicely printed paper label with clear tape will help keep sanity. (been there, done that too! :-) -- James P. Kinney III CEO & Director of Engineering Local Net Solutions,LLC http://www.localnetsolutions.com GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics) Fingerprint = 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7 -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. From jkinney at localnetsolutions.com Sat Sep 13 02:01:47 2008 From: jkinney at localnetsolutions.com (James P. Kinney III) Date: Fri, 12 Sep 2008 22:01:47 -0400 Subject: [K12OSN] K12Linux Logo Ideas In-Reply-To: <48C56F4D.6090802@redhat.com> References: <48C56F4D.6090802@redhat.com> Message-ID: <1221271307.6781.40.camel@merlin.localnetsolutions.com> Cool! Go Maureen! I like i the best. Can there be a bit more emphasis on the difference in size between the 3 clothsepin people? I like the useful age range and a size difference emphasizes that range more. Run the left head to 1/3 the height of the tallest head should do it. Really clean. How does it look with out the fades? On Mon, 2008-09-08 at 14:30 -0400, Warren Togami wrote: > http://people.redhat.com/duffy/tmp/k12ideas.png > > Maureen Duffy, leader of the Fedora Art team and Interaction Designer at > Red Hat worked on these mockups for a new K12Linux logo. This would be > for the LDM login screen, with an attractive but subtle blue background > behind it. > > How do people feel about the different options here? > > http://people.redhat.com/duffy/tmp/k12-white_bg_ex.png > Here is an example of the same logo with a white background, for the > Trac top-left logo and print on paper. > > Warren Togami > wtogami at redhat.com > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > -- James P. Kinney III CEO & Director of Engineering Local Net Solutions,LLC http://www.localnetsolutions.com GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics) Fingerprint = 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7 -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. From moon at smbis.com Sat Sep 13 02:20:01 2008 From: moon at smbis.com (Moon) Date: Fri, 12 Sep 2008 22:20:01 -0400 Subject: [K12OSN] A New direction for LTSP: Diskless Remote Boot In-Reply-To: <48CAFDE3.1090305@earthlink.net> References: <48C77DB9.550C.0078.0@leopards.k12.ar.us> <200809120029.41503.microman@cmosnetworks.com> <48CAFDE3.1090305@earthlink.net> Message-ID: <3340334731E24F898A9868F8B4482048@acerpc> Yes. I agree that the thread should be about A New Addition to LTSP: Diskless Remote Boot. It is better to have the best of both worlds as you never know what you may have to support. -----Original Message----- From: Rita Gibson [mailto:rgibson57 at earthlink.net] Sent: Friday, September 12, 2008 07:40 PM To: Support list for open source software in schools. Subject: Re: [K12OSN] A New direction for LTSP: Diskless Remote Boot Robert Arkiletian wrote: > On Thu, Sep 11, 2008 at 9:29 PM, Terrell Prude' Jr. > wrote: > >> +1 on that. The demos that I do are for overseas US State Dept. schools that, >> to my utter surprise, don't have a big budget, despite the fact that they're >> the schools where diplomats' kids go. Go figure. >> >> I've had two such schools convert to K12LTSP precisely because they could >> reuse existing hardware. They're typically using Pentium II-450 boxes as >> EtherBooting LTSP thin clients (boxes of that vintage often don't support >> PXE). >> > > All of you make good points. As I replied earlier, I am not suggesting > that we remove any functionality but rather see if we can *add* an > option to k12linux where we can boot in diskless workstation mode > based on mac address. > > That way you don't have to choose one or the other for an entire lab. > If you had some newer machines, you could specify by mac which ones > would work as regular ltsp and which by diskless workstation mode. > I have to say that we would absolutely find a diskless workstation mode useful. I have been wanting to respond to this thread all week, but have hesitated. I live in a city that has a very robust school donation program from which we can get nearly new machines from very high tech companies. I can think of a few apps that totally bog down our lab (25 clients) when everyone uses the same app -- tuxmath for one. If we could use a diskless workstation mode when using these types of applications, it would be awesome. Robert, maybe you should change the subject line to A New Addition to LTSP; Diskless Remote Boot instead of A New Direction. Rita Gibson RMSELTech _______________________________________________ K12OSN mailing list K12OSN at redhat.com https://www.redhat.com/mailman/listinfo/k12osn For more info see From moon at smbis.com Sat Sep 13 02:52:56 2008 From: moon at smbis.com (Moon) Date: Fri, 12 Sep 2008 22:52:56 -0400 Subject: [K12OSN] LTSP Lab Slow to Boot In-Reply-To: <1221269781.6781.23.camel@merlin.localnetsolutions.com> References: <20080905160038.DEC2A8E0F01@hormel.redhat.com><273E5FE24F52475E91BDCD09B13E4D93@acerpc> <48C21970.50403@togami.com> <1221269781.6781.23.camel@merlin.localnetsolutions.com> Message-ID: <11BE33DBF6CA4C4585222950AD039BB4@acerpc> Actually, in my case the server that was running Edubuntu 8.04.1 LTSP5 was an ABIT MB w/AMD 64 x2 3800 with 2G memory and RAID 1 160G SATA and two Gig NICs. The switch is a Dell PowerConnect 3024 24-port 10/100 and 2-Gig ports, one connected to the server. The 8 Thin-Clients in this lab supported by the above server are Compaq D51 2.26G P4 with 512M Ram connected to the server via 10/100 NIC to the Dell Dell PowerConnect 3024 switch. One the server, the CPU utilization does not exceed 30-40% running non multimedia apps like OOo and normal web browsing, the memory utilization never exceeds 60%, and the network never exceeds 60%. I do not know why Edubuntu choked on booting only 4-5 of these TCs at the same time and had poor overall performance on only 8 TCs. I replaced Edubuntu with K12LTSP EL5, same hardware configuration, boot all 8 TCs simultaneously and they all boot and work as expected. As I stated previously, Edubuntu has some issues with DHCP and their networking configurations, at least that was the case on the 8.04.1 version as of 8/20. Check the Ubuntu forums for DHCP problems to verify that people are having this problem. A quick review of the default install network config and the DHCP config file will show clearly the default settings don't even match right. -----Original Message----- From: James P. Kinney III [mailto:jkinney at localnetsolutions.com] Sent: Friday, September 12, 2008 09:36 PM To: Support list for open source software in schools. Subject: Re: [K12OSN] LTSP Lab Slow to Boot On Sat, 2008-09-06 at 01:47 -0400, Warren Togami wrote: > Moon wrote: > > Warren, here is another person that is having the same problems I had with > > Edubuntu 8.04.1. Note that the same issues with the DHCP server; not working > > or working very slowly. > > Quite frankly, I don't care if someone has a problem on Edubuntu. It is > like complaining to the Toyota dealer about a problem with your Chevrolet. > > I do want to know if you have the same problem on K12LTSP or K12Linux > though. I greatly prefer the K12Linux/L12LTSP5EL over the Edubuntu flavors myself, but the issue he has is only partially related to the toyota on a corvette forum. Given the bandwidth over capacity, the DHCP will fail on ANY platform. The Toyota failure is the ssh encryption that edubuntu uses for the X connection. This is school data not medical records! Encrypt the login and just send the rest raw. People: you MUST do some engineering on these installations. You can't just expect every machine you have to run off a crappy little network/server/used hard drive, etc. The TC environment is CPU intensive, VERY RAM INTENSIVE and a substantial impact on network bandwidth. I've been there, done that and I can't emphasize enough to spend the $$ on the server and switches and go cheap on the clients. The little, tiny clients will not drain the network as badly as they run slower and can't be such hogs. If the clients are 2GHz machines, that X server is gonna FLY!! Which means it's pounding the server for data. > > Warren Togami > wtogami at redhat.com > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > -- James P. Kinney III CEO & Director of Engineering Local Net Solutions,LLC http://www.localnetsolutions.com GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics) Fingerprint = 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7 -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. _______________________________________________ K12OSN mailing list K12OSN at redhat.com https://www.redhat.com/mailman/listinfo/k12osn For more info see From microman at cmosnetworks.com Sat Sep 13 05:18:45 2008 From: microman at cmosnetworks.com (Terrell Prude' Jr.) Date: Sat, 13 Sep 2008 01:18:45 -0400 Subject: [K12OSN] LTSP Lab Slow to Boot In-Reply-To: <1221269781.6781.23.camel@merlin.localnetsolutions.com> References: <20080905160038.DEC2A8E0F01@hormel.redhat.com> <48C21970.50403@togami.com> <1221269781.6781.23.camel@merlin.localnetsolutions.com> Message-ID: <200809130118.45634.microman@cmosnetworks.com> On Friday 12 September 2008 21:36, James P. Kinney III wrote: > People: you MUST do some engineering on these installations. You can't > just expect every machine you have to run off a crappy little > network/server/used hard drive, etc. The TC environment is CPU > intensive, VERY RAM INTENSIVE and a substantial impact on network > bandwidth. I've been there, done that and I can't emphasize enough to > spend the $$ on the server and switches and go cheap on the clients. The > little, tiny clients will not drain the network as badly as they run > slower and can't be such hogs. If the clients are 2GHz machines, that X > server is gonna FLY!! Which means it's pounding the server for data. I have to agree. I have said countless times that one TuxType session *by itself* will suck up 72Mb/sec of data. You get similar numbers with TuxMath. I know that because I took a little time and actually measured it. You've got to do this sort of thing. BTW, that's on an older client running an ATI 3D Rage Pro video card from 1998, a Pentium-166 MMX CPU, with a 3Com 10/100 network card. Old cheapie stuff, and it *still* sucked up bandwidth. We've also seen folks actually seriously want to run 20 clients on a 1GB DRAM "server" with a single CPU in the 1.4GHz range...without so much as Gig-E on this "server". They try it, and they wonder why it doesn't perform to their expectations. That's like trying to run Windows Vista Ultimate with full MS Office 2007, Adobe Photoshop, and a big Flash animation...in 256MB DRAM. --TP From microman at cmosnetworks.com Sat Sep 13 05:33:03 2008 From: microman at cmosnetworks.com (Terrell Prude' Jr.) Date: Sat, 13 Sep 2008 01:33:03 -0400 Subject: [K12OSN] A New Addition for LTSP: Diskless Remote Boot In-Reply-To: <3340334731E24F898A9868F8B4482048@acerpc> References: <48CAFDE3.1090305@earthlink.net> <3340334731E24F898A9868F8B4482048@acerpc> Message-ID: <200809130133.03572.microman@cmosnetworks.com> On Friday 12 September 2008 22:20, Moon wrote: > I have to say that we would absolutely find a diskless workstation mode > useful. I have been wanting to respond to this thread all week, but have > hesitated. If it's an addition, then I'd agree wholeheartedly. We're now seeing Via C7-based boxes with 1GB DRAM that would make excellent fanless diskless workstations, and Intel Atoms are on the way. Corporations are now also trying to get rid of their 866MHz and 933MHz Pentium III's with 512MB DRAM and decent built-in video. Perfect to run that Flash-enabled Firefox. > > I live in a city that has a very robust school donation program from > which we can get nearly new machines from very high tech companies. I > can think of a few apps that totally bog down our lab (25 clients) when > everyone uses the same app -- tuxmath for one. If we could use a > diskless workstation mode when using these types of applications, it > would be awesome. If you have 25 kids using TuxMath simultaneously, with only one Gig-E NIC on your server, then that's why it's so slow. Turns out you're way oversubscribing your server's network link, to the tune of about 175%. Don't run more than 14 at a time, due to bandwidth consumption reasons. If you must run all 25, then add a second Gig-E NIC in a Multi-Link configuration, which will let you safely run up to 28. > > Robert, maybe you should change the subject line to A New Addition to > LTSP; Diskless Remote Boot instead of A New Direction. Done. --TP From toddobryan at gmail.com Sat Sep 13 16:16:20 2008 From: toddobryan at gmail.com (Todd O'Bryan) Date: Sat, 13 Sep 2008 12:16:20 -0400 Subject: [K12OSN] LTSP Lab Slow to Boot In-Reply-To: <1221269781.6781.23.camel@merlin.localnetsolutions.com> References: <20080905160038.DEC2A8E0F01@hormel.redhat.com> <273E5FE24F52475E91BDCD09B13E4D93@acerpc> <48C21970.50403@togami.com> <1221269781.6781.23.camel@merlin.localnetsolutions.com> Message-ID: <904774730809130916h2a07565bqf6e4280b9bc69fc2@mail.gmail.com> On Fri, Sep 12, 2008 at 9:36 PM, James P. Kinney III < jkinney at localnetsolutions.com> wrote: > People: you MUST do some engineering on these installations. You can't > just expect every machine you have to run off a crappy little > network/server/used hard drive, etc. The TC environment is CPU > intensive, VERY RAM INTENSIVE and a substantial impact on network > bandwidth. I've been there, done that and I can't emphasize enough to > spend the $$ on the server and switches and go cheap on the clients. The > little, tiny clients will not drain the network as badly as they run > slower and can't be such hogs. If the clients are 2GHz machines, that X > server is gonna FLY!! Which means it's pounding the server for data. > I have a technical question that I'm not sure of the answer to. I have two 24-port 10/100mbs switches that each have two gigabit ports, in addition. I also have two servers. Here was my original plan: link the two switches with gigabit and use the other gig port on each switch to go to each server. That worked well. In the meantime, I got access to a server with SCSI disks and hardware RAID, so I decided to use it for my home folders. I'm now running the servers' 192.168... nics to an 8-port gig switch in the server room that the file server is also connected to and I'm connecting that switch to one of the gig ports on the two switches that are in the lab. How much of a hit am I taking, and should I even worry about it? Thanks, Todd -------------- next part -------------- An HTML attachment was scrubbed... URL: From microman at cmosnetworks.com Sat Sep 13 19:44:49 2008 From: microman at cmosnetworks.com (Terrell Prude' Jr.) Date: Sat, 13 Sep 2008 15:44:49 -0400 Subject: [K12OSN] LTSP Lab Slow to Boot In-Reply-To: <904774730809130916h2a07565bqf6e4280b9bc69fc2@mail.gmail.com> References: <20080905160038.DEC2A8E0F01@hormel.redhat.com> <1221269781.6781.23.camel@merlin.localnetsolutions.com> <904774730809130916h2a07565bqf6e4280b9bc69fc2@mail.gmail.com> Message-ID: <200809131544.50363.microman@cmosnetworks.com> On Saturday 13 September 2008 12:16, Todd O'Bryan wrote: > > I have a technical question that I'm not sure of the answer to. > > I have two 24-port 10/100mbs switches that each have two gigabit ports, in > addition. I also have two servers. > > Here was my original plan: link the two switches with gigabit and use the > other gig port on each switch to go to each server. That worked well. > > In the meantime, I got access to a server with SCSI disks and hardware > RAID, so I decided to use it for my home folders. I'm now running the > servers' 192.168... nics to an 8-port gig switch in the server room that > the file server is also connected to and I'm connecting that switch to one > of the gig ports on the two switches that are in the lab. > > How much of a hit am I taking, and should I even worry about it? To help answer this, I'll need a little more info. If I understand you correctly, the "192.168..." NICs on both of your LTSP servers (you don't specify this, so I'm by necessity making an assumption here) are your "eth0" interfaces for talking to your thin clients. Furthermore, both of these eth0 interfaces are now on the 8-port Gig-E switch. Additionally, you have this newly acquired, SCSI-disk-equipped file server that is on this same Gig-E switch, and all of this constitutes a single broadcast domain which houses only the 192.168.x.x subnet. BTW, which specific 192.168.x.x subnet are you using--is it 192.168.251.0, 192.168.33.160, 192.168.2.128, etc? I don't see that specified. And what is the subnet mask? Finally, you have this 8-port Gig-E switch uplinked to a Gig-E port on the two switches in the lab (another, separate room). Is all of this correct, or am I misunderstanding something here. --TP From SteveSings at gmail.com Sat Sep 13 20:42:46 2008 From: SteveSings at gmail.com (Stephen Crampton) Date: Sat, 13 Sep 2008 16:42:46 -0400 Subject: [K12OSN] Update on LTSP Booting Speed Message-ID: Thanks so much to all of you who took the time to respond to numerous questions I have asked. I wanted to update you on what actions I have taken and what the status of the lab is. First, to clarify matters, the server I am currently using has two Athlon 64-bit processors, running at (I think) 2.4 GHz, and 4 GB of memory. In addition to the built-in 100Mbps Ethernet card, it has a 1 Gbps Ethernet card and an IDE hard drive. I installed K12LTSP 5EL. By default the installer chose the Gbps Ethernet card for the LTSP clients. I'm using a managed switch that has 24 100Mbps ports and 4 1Gbps ports. The LTSP server, of course, is plugged into one of the 1Gbps ports. I went into the management web administrator and turned off the spanning-tree stuff. I have three old computers that seem to have no problem booting up on the system. Also, I recently acquired a Nohrtec Microclient, Sr., which boots off the system and seems to be capable of running blender over LTSP. I originally wanted 30 thin clients, because my class sizes get that big, however, it now looks like I will get 15 thin clients for the rest of this year. Because of the school district's procurement policies, we are being steered toward Wyse thin clients, which I do not know much about, but which look like they might make capable thin clients. I hope to have the thin clients within a few weeks. Until then, I have about 10 other computers at my disposal. They are Lenovo ThinkCentre machines and I have been having problems getting them to boot on the network. (I cannot touch their hard drives.) It has been suggested that the problem is the tg3 module, but I'm not sure what I can do about it. I tried adding NIC=tg3 to the default file and also backporting the ltsp-client, but to no avail. To make these 10 computers useful, I am currently trying to make a custom live cd to boot them. I installed Fedora 9 on an old machine at home and livecd-tools. For some reason, the process has crashed twice, logging me out in the process. In both cases, the computer was unattended and it may be the problem has to do with power management (I'll try to disable it). I wonder whether I can get the livecd platforms to log in and use the LTSP server's /home directory. To make blender and other applications run more quickly, I also want to figure out how to get them to run locally on the clients. The clients are all powerful enough, even the fanless ones. It seems to me that the ideal setup would have the LTSP server serve the operating system and applications to the clients and then let them do most of the work. You would be able to have low-profile, energy efficient clients, but you might be able to serve a lot of them with one reasonable powerful server. Best regards, Steve Crampton From lewis at pcc.com Sun Sep 14 01:36:14 2008 From: lewis at pcc.com (Lewis Holcroft) Date: Sat, 13 Sep 2008 21:36:14 -0400 Subject: [K12OSN] Update on LTSP Booting Speed In-Reply-To: References: Message-ID: Stephen, I'm not sure why wyse came up as posible thin clients. I did some testing with them and found them quite problematic. They are also expensive. Others may have had better luck than I. I have had to work with them in a windows environment also. They have a "feature" that looks for a server to download updates for the OS. It is responsible flooding the network with broadcast packets. I made three attempts to try and resolve the issue with thier support Dept. They could not tell me what caused the traffic. Much Googling got me the hint about the "feature". I find I get much better support from the folks at disklessworkstations.com they even try to fix the problem. Lewis On Sep 13, 2008, at 4:42 PM, "Stephen Crampton" wrote: > Thanks so much to all of you who took the time to respond to numerous > questions I have asked. > > I wanted to update you on what actions I have taken and what the > status of the lab is. > > First, to clarify matters, the server I am currently using has two > Athlon 64-bit processors, running at (I think) 2.4 GHz, and 4 GB of > memory. In addition to the built-in 100Mbps Ethernet card, it has a 1 > Gbps Ethernet card and an IDE hard drive. > > I installed K12LTSP 5EL. By default the installer chose the Gbps > Ethernet card for the LTSP clients. > > I'm using a managed switch that has 24 100Mbps ports and 4 1Gbps > ports. The LTSP server, of course, is plugged into one of the 1Gbps > ports. I went into the management web administrator and turned off > the spanning-tree stuff. > > I have three old computers that seem to have no problem booting up on > the system. Also, I recently acquired a Nohrtec Microclient, Sr., > which boots off the system and seems to be capable of running blender > over LTSP. > > I originally wanted 30 thin clients, because my class sizes get that > big, however, it now looks like I will get 15 thin clients for the > rest of this year. Because of the school district's procurement > policies, we are being steered toward Wyse thin clients, which I do > not know much about, but which look like they might make capable thin > clients. I hope to have the thin clients within a few weeks. > > Until then, I have about 10 other computers at my disposal. They are > Lenovo ThinkCentre machines and I have been having problems getting > them to boot on the network. (I cannot touch their hard drives.) It > has been suggested that the problem is the tg3 module, but I'm not > sure what I can do about it. I tried adding NIC=tg3 to the default > file and also backporting the ltsp-client, but to no avail. > > To make these 10 computers useful, I am currently trying to make a > custom live cd to boot them. I installed Fedora 9 on an old machine > at home and livecd-tools. For some reason, the process has crashed > twice, logging me out in the process. In both cases, the computer was > unattended and it may be the problem has to do with power management > (I'll try to disable it). I wonder whether I can get the livecd > platforms to log in and use the LTSP server's /home directory. > > To make blender and other applications run more quickly, I also want > to figure out how to get them to run locally on the clients. The > clients are all powerful enough, even the fanless ones. It seems to > me that the ideal setup would have the LTSP server serve the operating > system and applications to the clients and then let them do most of > the work. You would be able to have low-profile, energy efficient > clients, but you might be able to serve a lot of them with one > reasonable powerful server. > > Best regards, > Steve Crampton > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see From lewis at pcc.com Sun Sep 14 01:36:14 2008 From: lewis at pcc.com (Lewis Holcroft) Date: Sat, 13 Sep 2008 21:36:14 -0400 Subject: [K12OSN] Update on LTSP Booting Speed In-Reply-To: References: Message-ID: Stephen, I'm not sure why wyse came up as posible thin clients. I did some testing with them and found them quite problematic. They are also expensive. Others may have had better luck than I. I have had to work with them in a windows environment also. They have a "feature" that looks for a server to download updates for the OS. It is responsible flooding the network with broadcast packets. I made three attempts to try and resolve the issue with thier support Dept. They could not tell me what caused the traffic. Much Googling got me the hint about the "feature". I find I get much better support from the folks at disklessworkstations.com they even try to fix the problem. Lewis On Sep 13, 2008, at 4:42 PM, "Stephen Crampton" wrote: > Thanks so much to all of you who took the time to respond to numerous > questions I have asked. > > I wanted to update you on what actions I have taken and what the > status of the lab is. > > First, to clarify matters, the server I am currently using has two > Athlon 64-bit processors, running at (I think) 2.4 GHz, and 4 GB of > memory. In addition to the built-in 100Mbps Ethernet card, it has a 1 > Gbps Ethernet card and an IDE hard drive. > > I installed K12LTSP 5EL. By default the installer chose the Gbps > Ethernet card for the LTSP clients. > > I'm using a managed switch that has 24 100Mbps ports and 4 1Gbps > ports. The LTSP server, of course, is plugged into one of the 1Gbps > ports. I went into the management web administrator and turned off > the spanning-tree stuff. > > I have three old computers that seem to have no problem booting up on > the system. Also, I recently acquired a Nohrtec Microclient, Sr., > which boots off the system and seems to be capable of running blender > over LTSP. > > I originally wanted 30 thin clients, because my class sizes get that > big, however, it now looks like I will get 15 thin clients for the > rest of this year. Because of the school district's procurement > policies, we are being steered toward Wyse thin clients, which I do > not know much about, but which look like they might make capable thin > clients. I hope to have the thin clients within a few weeks. > > Until then, I have about 10 other computers at my disposal. They are > Lenovo ThinkCentre machines and I have been having problems getting > them to boot on the network. (I cannot touch their hard drives.) It > has been suggested that the problem is the tg3 module, but I'm not > sure what I can do about it. I tried adding NIC=tg3 to the default > file and also backporting the ltsp-client, but to no avail. > > To make these 10 computers useful, I am currently trying to make a > custom live cd to boot them. I installed Fedora 9 on an old machine > at home and livecd-tools. For some reason, the process has crashed > twice, logging me out in the process. In both cases, the computer was > unattended and it may be the problem has to do with power management > (I'll try to disable it). I wonder whether I can get the livecd > platforms to log in and use the LTSP server's /home directory. > > To make blender and other applications run more quickly, I also want > to figure out how to get them to run locally on the clients. The > clients are all powerful enough, even the fanless ones. It seems to > me that the ideal setup would have the LTSP server serve the operating > system and applications to the clients and then let them do most of > the work. You would be able to have low-profile, energy efficient > clients, but you might be able to serve a lot of them with one > reasonable powerful server. > > Best regards, > Steve Crampton > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see From lewis at pcc.com Sun Sep 14 01:36:14 2008 From: lewis at pcc.com (Lewis Holcroft) Date: Sat, 13 Sep 2008 21:36:14 -0400 Subject: [K12OSN] Update on LTSP Booting Speed In-Reply-To: References: Message-ID: Stephen, I'm not sure why wyse came up as posible thin clients. I did some testing with them and found them quite problematic. They are also expensive. Others may have had better luck than I. I have had to work with them in a windows environment also. They have a "feature" that looks for a server to download updates for the OS. It is responsible flooding the network with broadcast packets. I made three attempts to try and resolve the issue with thier support Dept. They could not tell me what caused the traffic. Much Googling got me the hint about the "feature". I find I get much better support from the folks at disklessworkstations.com they even try to fix the problem. Lewis On Sep 13, 2008, at 4:42 PM, "Stephen Crampton" wrote: > Thanks so much to all of you who took the time to respond to numerous > questions I have asked. > > I wanted to update you on what actions I have taken and what the > status of the lab is. > > First, to clarify matters, the server I am currently using has two > Athlon 64-bit processors, running at (I think) 2.4 GHz, and 4 GB of > memory. In addition to the built-in 100Mbps Ethernet card, it has a 1 > Gbps Ethernet card and an IDE hard drive. > > I installed K12LTSP 5EL. By default the installer chose the Gbps > Ethernet card for the LTSP clients. > > I'm using a managed switch that has 24 100Mbps ports and 4 1Gbps > ports. The LTSP server, of course, is plugged into one of the 1Gbps > ports. I went into the management web administrator and turned off > the spanning-tree stuff. > > I have three old computers that seem to have no problem booting up on > the system. Also, I recently acquired a Nohrtec Microclient, Sr., > which boots off the system and seems to be capable of running blender > over LTSP. > > I originally wanted 30 thin clients, because my class sizes get that > big, however, it now looks like I will get 15 thin clients for the > rest of this year. Because of the school district's procurement > policies, we are being steered toward Wyse thin clients, which I do > not know much about, but which look like they might make capable thin > clients. I hope to have the thin clients within a few weeks. > > Until then, I have about 10 other computers at my disposal. They are > Lenovo ThinkCentre machines and I have been having problems getting > them to boot on the network. (I cannot touch their hard drives.) It > has been suggested that the problem is the tg3 module, but I'm not > sure what I can do about it. I tried adding NIC=tg3 to the default > file and also backporting the ltsp-client, but to no avail. > > To make these 10 computers useful, I am currently trying to make a > custom live cd to boot them. I installed Fedora 9 on an old machine > at home and livecd-tools. For some reason, the process has crashed > twice, logging me out in the process. In both cases, the computer was > unattended and it may be the problem has to do with power management > (I'll try to disable it). I wonder whether I can get the livecd > platforms to log in and use the LTSP server's /home directory. > > To make blender and other applications run more quickly, I also want > to figure out how to get them to run locally on the clients. The > clients are all powerful enough, even the fanless ones. It seems to > me that the ideal setup would have the LTSP server serve the operating > system and applications to the clients and then let them do most of > the work. You would be able to have low-profile, energy efficient > clients, but you might be able to serve a lot of them with one > reasonable powerful server. > > Best regards, > Steve Crampton > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see From lewis at pcc.com Sun Sep 14 01:36:14 2008 From: lewis at pcc.com (Lewis Holcroft) Date: Sat, 13 Sep 2008 21:36:14 -0400 Subject: [K12OSN] Update on LTSP Booting Speed In-Reply-To: References: Message-ID: Stephen, I'm not sure why wyse came up as posible thin clients. I did some testing with them and found them quite problematic. They are also expensive. Others may have had better luck than I. I have had to work with them in a windows environment also. They have a "feature" that looks for a server to download updates for the OS. It is responsible flooding the network with broadcast packets. I made three attempts to try and resolve the issue with thier support Dept. They could not tell me what caused the traffic. Much Googling got me the hint about the "feature". I find I get much better support from the folks at disklessworkstations.com they even try to fix the problem. Lewis On Sep 13, 2008, at 4:42 PM, "Stephen Crampton" wrote: > Thanks so much to all of you who took the time to respond to numerous > questions I have asked. > > I wanted to update you on what actions I have taken and what the > status of the lab is. > > First, to clarify matters, the server I am currently using has two > Athlon 64-bit processors, running at (I think) 2.4 GHz, and 4 GB of > memory. In addition to the built-in 100Mbps Ethernet card, it has a 1 > Gbps Ethernet card and an IDE hard drive. > > I installed K12LTSP 5EL. By default the installer chose the Gbps > Ethernet card for the LTSP clients. > > I'm using a managed switch that has 24 100Mbps ports and 4 1Gbps > ports. The LTSP server, of course, is plugged into one of the 1Gbps > ports. I went into the management web administrator and turned off > the spanning-tree stuff. > > I have three old computers that seem to have no problem booting up on > the system. Also, I recently acquired a Nohrtec Microclient, Sr., > which boots off the system and seems to be capable of running blender > over LTSP. > > I originally wanted 30 thin clients, because my class sizes get that > big, however, it now looks like I will get 15 thin clients for the > rest of this year. Because of the school district's procurement > policies, we are being steered toward Wyse thin clients, which I do > not know much about, but which look like they might make capable thin > clients. I hope to have the thin clients within a few weeks. > > Until then, I have about 10 other computers at my disposal. They are > Lenovo ThinkCentre machines and I have been having problems getting > them to boot on the network. (I cannot touch their hard drives.) It > has been suggested that the problem is the tg3 module, but I'm not > sure what I can do about it. I tried adding NIC=tg3 to the default > file and also backporting the ltsp-client, but to no avail. > > To make these 10 computers useful, I am currently trying to make a > custom live cd to boot them. I installed Fedora 9 on an old machine > at home and livecd-tools. For some reason, the process has crashed > twice, logging me out in the process. In both cases, the computer was > unattended and it may be the problem has to do with power management > (I'll try to disable it). I wonder whether I can get the livecd > platforms to log in and use the LTSP server's /home directory. > > To make blender and other applications run more quickly, I also want > to figure out how to get them to run locally on the clients. The > clients are all powerful enough, even the fanless ones. It seems to > me that the ideal setup would have the LTSP server serve the operating > system and applications to the clients and then let them do most of > the work. You would be able to have low-profile, energy efficient > clients, but you might be able to serve a lot of them with one > reasonable powerful server. > > Best regards, > Steve Crampton > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see From lewis at pcc.com Sun Sep 14 01:36:14 2008 From: lewis at pcc.com (Lewis Holcroft) Date: Sat, 13 Sep 2008 21:36:14 -0400 Subject: [K12OSN] Update on LTSP Booting Speed In-Reply-To: References: Message-ID: Stephen, I'm not sure why wyse came up as posible thin clients. I did some testing with them and found them quite problematic. They are also expensive. Others may have had better luck than I. I have had to work with them in a windows environment also. They have a "feature" that looks for a server to download updates for the OS. It is responsible flooding the network with broadcast packets. I made three attempts to try and resolve the issue with thier support Dept. They could not tell me what caused the traffic. Much Googling got me the hint about the "feature". I find I get much better support from the folks at disklessworkstations.com they even try to fix the problem. Lewis On Sep 13, 2008, at 4:42 PM, "Stephen Crampton" wrote: > Thanks so much to all of you who took the time to respond to numerous > questions I have asked. > > I wanted to update you on what actions I have taken and what the > status of the lab is. > > First, to clarify matters, the server I am currently using has two > Athlon 64-bit processors, running at (I think) 2.4 GHz, and 4 GB of > memory. In addition to the built-in 100Mbps Ethernet card, it has a 1 > Gbps Ethernet card and an IDE hard drive. > > I installed K12LTSP 5EL. By default the installer chose the Gbps > Ethernet card for the LTSP clients. > > I'm using a managed switch that has 24 100Mbps ports and 4 1Gbps > ports. The LTSP server, of course, is plugged into one of the 1Gbps > ports. I went into the management web administrator and turned off > the spanning-tree stuff. > > I have three old computers that seem to have no problem booting up on > the system. Also, I recently acquired a Nohrtec Microclient, Sr., > which boots off the system and seems to be capable of running blender > over LTSP. > > I originally wanted 30 thin clients, because my class sizes get that > big, however, it now looks like I will get 15 thin clients for the > rest of this year. Because of the school district's procurement > policies, we are being steered toward Wyse thin clients, which I do > not know much about, but which look like they might make capable thin > clients. I hope to have the thin clients within a few weeks. > > Until then, I have about 10 other computers at my disposal. They are > Lenovo ThinkCentre machines and I have been having problems getting > them to boot on the network. (I cannot touch their hard drives.) It > has been suggested that the problem is the tg3 module, but I'm not > sure what I can do about it. I tried adding NIC=tg3 to the default > file and also backporting the ltsp-client, but to no avail. > > To make these 10 computers useful, I am currently trying to make a > custom live cd to boot them. I installed Fedora 9 on an old machine > at home and livecd-tools. For some reason, the process has crashed > twice, logging me out in the process. In both cases, the computer was > unattended and it may be the problem has to do with power management > (I'll try to disable it). I wonder whether I can get the livecd > platforms to log in and use the LTSP server's /home directory. > > To make blender and other applications run more quickly, I also want > to figure out how to get them to run locally on the clients. The > clients are all powerful enough, even the fanless ones. It seems to > me that the ideal setup would have the LTSP server serve the operating > system and applications to the clients and then let them do most of > the work. You would be able to have low-profile, energy efficient > clients, but you might be able to serve a lot of them with one > reasonable powerful server. > > Best regards, > Steve Crampton > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see From toddobryan at gmail.com Sun Sep 14 02:22:10 2008 From: toddobryan at gmail.com (Todd O'Bryan) Date: Sat, 13 Sep 2008 22:22:10 -0400 Subject: [K12OSN] LTSP Lab Slow to Boot In-Reply-To: <200809131544.50363.microman@cmosnetworks.com> References: <20080905160038.DEC2A8E0F01@hormel.redhat.com> <1221269781.6781.23.camel@merlin.localnetsolutions.com> <904774730809130916h2a07565bqf6e4280b9bc69fc2@mail.gmail.com> <200809131544.50363.microman@cmosnetworks.com> Message-ID: <904774730809131922k46e73201w4b4f55c96d06d167@mail.gmail.com> See inline... On Sat, Sep 13, 2008 at 3:44 PM, Terrell Prude' Jr. < microman at cmosnetworks.com> wrote: > On Saturday 13 September 2008 12:16, Todd O'Bryan wrote: > > > > I have a technical question that I'm not sure of the answer to. > > > > I have two 24-port 10/100mbs switches that each have two gigabit ports, > in > > addition. I also have two servers. > > > > Here was my original plan: link the two switches with gigabit and use the > > other gig port on each switch to go to each server. That worked well. > > > > In the meantime, I got access to a server with SCSI disks and hardware > > RAID, so I decided to use it for my home folders. I'm now running the > > servers' 192.168... nics to an 8-port gig switch in the server room that > > the file server is also connected to and I'm connecting that switch to > one > > of the gig ports on the two switches that are in the lab. > > > > How much of a hit am I taking, and should I even worry about it? > > To help answer this, I'll need a little more info. If I understand you > correctly, the "192.168..." NICs on both of your LTSP servers (you don't > specify this, so I'm by necessity making an assumption here) are your > "eth0" > interfaces for talking to your thin clients. > You're correct. They're not actually eth0 (we were having driver issues with the onboard eth0 NIC, so they're eth2, I think), but they're the interface that talks to all the thin clients. > Furthermore, both of these eth0 interfaces are now on the 8-port Gig-E > switch. > Additionally, you have this newly acquired, SCSI-disk-equipped file server > that is on this same Gig-E switch, and all of this constitutes a single > broadcast domain which houses only the 192.168.x.x subnet. > > BTW, which specific 192.168.x.x subnet are you using--is it 192.168.251.0, > 192.168.33.160, 192.168.2.128, etc? I don't see that specified. And what > is > the subnet mask? > I'm in room 202, so my local network is 192.168.202.1 = server1 (application server) 192.168.202.2 = server2 (application server) 192.168.202.3 = server3 (file server with /home which is NFS mounted to server1 and server2) 192.168.202.101 - 130 = the thirty thin clients (assigned by MAC address so I know the IP of each client) I'm not sure what the subnet mask is set to (and I actually don't know what it's used for, so guidance would be appreciated if there a particular setting that would be useful). I think it's 255.255.255.0, but I'd have to check to be sure. server1 and server2 also have separate NICs that plug into the school network, get an IP using DHCP and are what we use to access the wider internet. Finally, you have this 8-port Gig-E switch uplinked to a Gig-E port on the > two > switches in the lab (another, separate room). > > Is all of this correct, or am I misunderstanding something here. Correct. Actually, servers 1, 2, and 3 are in a storage closet in my room so they can be behind a locked door and the thin clients are in the room proper. The 8-port gig switch is in the closet with the servers and the 2 24-port switches with 2 gig ports each are in the room. Sorry I wasn't more clear in the earlier post, Todd -------------- next part -------------- An HTML attachment was scrubbed... URL: From microman at cmosnetworks.com Sun Sep 14 06:16:37 2008 From: microman at cmosnetworks.com (Terrell Prude' Jr.) Date: Sun, 14 Sep 2008 02:16:37 -0400 Subject: [K12OSN] LTSP Lab Slow to Boot In-Reply-To: <904774730809131922k46e73201w4b4f55c96d06d167@mail.gmail.com> References: <20080905160038.DEC2A8E0F01@hormel.redhat.com> <1221269781.6781.23.camel@merlin.localnetsolutions.com> <904774730809130916h2a07565bqf6e4280b9bc69fc2@mail.gmail.com> <200809131544.50363.microman@cmosnetworks.com> <904774730809131922k46e73201w4b4f55c96d06d167@mail.gmail.com> Message-ID: <48CCAC45.2040600@cmosnetworks.com> See inline. :-) Todd O'Bryan wrote: > > > To help answer this, I'll need a little more info. If I > understand you > correctly, the "192.168..." NICs on both of your LTSP servers (you > don't > specify this, so I'm by necessity making an assumption here) are > your "eth0" > interfaces for talking to your thin clients. > > > You're correct. They're not actually eth0 (we were having driver > issues with the onboard eth0 NIC, so they're eth2, I think), but > they're the interface that talks to all the thin clients. Interesting...what kind of onboard NICs are these? And what kind of server motherboard nowadays includes non-Linux-friendly NIC's? I'd like to know, so I can avoid them like the plague. > > > Furthermore, both of these eth0 interfaces are now on the 8-port > Gig-E switch. > Additionally, you have this newly acquired, SCSI-disk-equipped > file server > that is on this same Gig-E switch, and all of this constitutes a > single > broadcast domain which houses only the 192.168.x.x subnet. > > BTW, which specific 192.168.x.x subnet are you using--is it > 192.168.251.0 , > 192.168.33.160 , 192.168.2.128 > , etc? I don't see that specified. And what is > the subnet mask? > > > I'm in room 202, so my local network is > > 192.168.202.1 = server1 (application server) > 192.168.202.2 = server2 (application server) > 192.168.202.3 = server3 (file server with /home > which is NFS mounted to server1 and server2) > 192.168.202.101 - 130 = the thirty thin > clients (assigned by MAC address so I know the IP of each client) > > I'm not sure what the subnet mask is set to (and I actually don't know > what it's used for, so guidance would be appreciated if there a > particular setting that would be useful). I think it's 255.255.255.0 > , but I'd have to check to be sure. > > server1 and server2 also have separate NICs that plug into the school > network, get an IP using DHCP and are what we use to access the wider > internet. So, all this means that you have both LTSP servers with their thin-client-facing interfaces (eth2, in this case) on the same broadcast domain. I guess that's why you're doing DHCP reservations (assigning by MAC address), so you can manually load-balance the clients across the two LTSP servers. If that's what you're doing, then it's higher-maintenance than another method involving VLANs, but it certainly would work. I take it that you don't want "server3", the file server, accessible from the main school LAN. If so, then you did it right. Most people use 255.255.255.0 (or "/24" in CIDR notation). In your case, since you don't need to handle gobs of nodes on this subnet, that's certainly sufficient. For the anally retentive, yes, a smaller one (a /25, or 255.255.255.128) would also work here, but unless you know why you need to do that, you *don't* need to do that. > > Finally, you have this 8-port Gig-E switch uplinked to a Gig-E > port on the two > switches in the lab (another, separate room). > > Is all of this correct, or am I misunderstanding something here. > > > Correct. Actually, servers 1, 2, and 3 are in a storage closet in my > room so they can be behind a locked door and the thin clients are in > the room proper. The 8-port gig switch is in the closet with the > servers and the 2 24-port switches with 2 gig ports each are in the room. > I don't predict that you should have any problems related to network design. Since all the servers's Gig-E ports are on the same Gig-E switch, the backplane will make traffic between them quite fast, assuming that your 8-port switch has a decent backplane (all quality ones do). Fifteen thin clients will be coming into the 8-port switch via one Gig-E interface (the downlink to one 24-port classroom switch), and the other fifteen will be coming in via another Gig-E interface. The backplane of the 8-port "core" switch will most certainly be big enough to bridge such traffic to the correct switch port (the ones for server1 and server2, that is). So, it sounds like you have a good setup here. --TP From lewis at pcc.com Sun Sep 14 01:36:14 2008 From: lewis at pcc.com (Lewis Holcroft) Date: Sat, 13 Sep 2008 21:36:14 -0400 Subject: [K12OSN] Update on LTSP Booting Speed In-Reply-To: References: Message-ID: Stephen, I'm not sure why wyse came up as posible thin clients. I did some testing with them and found them quite problematic. They are also expensive. Others may have had better luck than I. I have had to work with them in a windows environment also. They have a "feature" that looks for a server to download updates for the OS. It is responsible flooding the network with broadcast packets. I made three attempts to try and resolve the issue with thier support Dept. They could not tell me what caused the traffic. Much Googling got me the hint about the "feature". I find I get much better support from the folks at disklessworkstations.com they even try to fix the problem. Lewis On Sep 13, 2008, at 4:42 PM, "Stephen Crampton" wrote: > Thanks so much to all of you who took the time to respond to numerous > questions I have asked. > > I wanted to update you on what actions I have taken and what the > status of the lab is. > > First, to clarify matters, the server I am currently using has two > Athlon 64-bit processors, running at (I think) 2.4 GHz, and 4 GB of > memory. In addition to the built-in 100Mbps Ethernet card, it has a 1 > Gbps Ethernet card and an IDE hard drive. > > I installed K12LTSP 5EL. By default the installer chose the Gbps > Ethernet card for the LTSP clients. > > I'm using a managed switch that has 24 100Mbps ports and 4 1Gbps > ports. The LTSP server, of course, is plugged into one of the 1Gbps > ports. I went into the management web administrator and turned off > the spanning-tree stuff. > > I have three old computers that seem to have no problem booting up on > the system. Also, I recently acquired a Nohrtec Microclient, Sr., > which boots off the system and seems to be capable of running blender > over LTSP. > > I originally wanted 30 thin clients, because my class sizes get that > big, however, it now looks like I will get 15 thin clients for the > rest of this year. Because of the school district's procurement > policies, we are being steered toward Wyse thin clients, which I do > not know much about, but which look like they might make capable thin > clients. I hope to have the thin clients within a few weeks. > > Until then, I have about 10 other computers at my disposal. They are > Lenovo ThinkCentre machines and I have been having problems getting > them to boot on the network. (I cannot touch their hard drives.) It > has been suggested that the problem is the tg3 module, but I'm not > sure what I can do about it. I tried adding NIC=tg3 to the default > file and also backporting the ltsp-client, but to no avail. > > To make these 10 computers useful, I am currently trying to make a > custom live cd to boot them. I installed Fedora 9 on an old machine > at home and livecd-tools. For some reason, the process has crashed > twice, logging me out in the process. In both cases, the computer was > unattended and it may be the problem has to do with power management > (I'll try to disable it). I wonder whether I can get the livecd > platforms to log in and use the LTSP server's /home directory. > > To make blender and other applications run more quickly, I also want > to figure out how to get them to run locally on the clients. The > clients are all powerful enough, even the fanless ones. It seems to > me that the ideal setup would have the LTSP server serve the operating > system and applications to the clients and then let them do most of > the work. You would be able to have low-profile, energy efficient > clients, but you might be able to serve a lot of them with one > reasonable powerful server. > > Best regards, > Steve Crampton > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see From lewis at pcc.com Sun Sep 14 01:36:14 2008 From: lewis at pcc.com (Lewis Holcroft) Date: Sat, 13 Sep 2008 21:36:14 -0400 Subject: [K12OSN] Update on LTSP Booting Speed In-Reply-To: References: Message-ID: Stephen, I'm not sure why wyse came up as posible thin clients. I did some testing with them and found them quite problematic. They are also expensive. Others may have had better luck than I. I have had to work with them in a windows environment also. They have a "feature" that looks for a server to download updates for the OS. It is responsible flooding the network with broadcast packets. I made three attempts to try and resolve the issue with thier support Dept. They could not tell me what caused the traffic. Much Googling got me the hint about the "feature". I find I get much better support from the folks at disklessworkstations.com they even try to fix the problem. Lewis On Sep 13, 2008, at 4:42 PM, "Stephen Crampton" wrote: > Thanks so much to all of you who took the time to respond to numerous > questions I have asked. > > I wanted to update you on what actions I have taken and what the > status of the lab is. > > First, to clarify matters, the server I am currently using has two > Athlon 64-bit processors, running at (I think) 2.4 GHz, and 4 GB of > memory. In addition to the built-in 100Mbps Ethernet card, it has a 1 > Gbps Ethernet card and an IDE hard drive. > > I installed K12LTSP 5EL. By default the installer chose the Gbps > Ethernet card for the LTSP clients. > > I'm using a managed switch that has 24 100Mbps ports and 4 1Gbps > ports. The LTSP server, of course, is plugged into one of the 1Gbps > ports. I went into the management web administrator and turned off > the spanning-tree stuff. > > I have three old computers that seem to have no problem booting up on > the system. Also, I recently acquired a Nohrtec Microclient, Sr., > which boots off the system and seems to be capable of running blender > over LTSP. > > I originally wanted 30 thin clients, because my class sizes get that > big, however, it now looks like I will get 15 thin clients for the > rest of this year. Because of the school district's procurement > policies, we are being steered toward Wyse thin clients, which I do > not know much about, but which look like they might make capable thin > clients. I hope to have the thin clients within a few weeks. > > Until then, I have about 10 other computers at my disposal. They are > Lenovo ThinkCentre machines and I have been having problems getting > them to boot on the network. (I cannot touch their hard drives.) It > has been suggested that the problem is the tg3 module, but I'm not > sure what I can do about it. I tried adding NIC=tg3 to the default > file and also backporting the ltsp-client, but to no avail. > > To make these 10 computers useful, I am currently trying to make a > custom live cd to boot them. I installed Fedora 9 on an old machine > at home and livecd-tools. For some reason, the process has crashed > twice, logging me out in the process. In both cases, the computer was > unattended and it may be the problem has to do with power management > (I'll try to disable it). I wonder whether I can get the livecd > platforms to log in and use the LTSP server's /home directory. > > To make blender and other applications run more quickly, I also want > to figure out how to get them to run locally on the clients. The > clients are all powerful enough, even the fanless ones. It seems to > me that the ideal setup would have the LTSP server serve the operating > system and applications to the clients and then let them do most of > the work. You would be able to have low-profile, energy efficient > clients, but you might be able to serve a lot of them with one > reasonable powerful server. > > Best regards, > Steve Crampton > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see From lewis at pcc.com Sun Sep 14 01:36:14 2008 From: lewis at pcc.com (Lewis Holcroft) Date: Sat, 13 Sep 2008 21:36:14 -0400 Subject: [K12OSN] Update on LTSP Booting Speed In-Reply-To: References: Message-ID: Stephen, I'm not sure why wyse came up as posible thin clients. I did some testing with them and found them quite problematic. They are also expensive. Others may have had better luck than I. I have had to work with them in a windows environment also. They have a "feature" that looks for a server to download updates for the OS. It is responsible flooding the network with broadcast packets. I made three attempts to try and resolve the issue with thier support Dept. They could not tell me what caused the traffic. Much Googling got me the hint about the "feature". I find I get much better support from the folks at disklessworkstations.com they even try to fix the problem. Lewis On Sep 13, 2008, at 4:42 PM, "Stephen Crampton" wrote: > Thanks so much to all of you who took the time to respond to numerous > questions I have asked. > > I wanted to update you on what actions I have taken and what the > status of the lab is. > > First, to clarify matters, the server I am currently using has two > Athlon 64-bit processors, running at (I think) 2.4 GHz, and 4 GB of > memory. In addition to the built-in 100Mbps Ethernet card, it has a 1 > Gbps Ethernet card and an IDE hard drive. > > I installed K12LTSP 5EL. By default the installer chose the Gbps > Ethernet card for the LTSP clients. > > I'm using a managed switch that has 24 100Mbps ports and 4 1Gbps > ports. The LTSP server, of course, is plugged into one of the 1Gbps > ports. I went into the management web administrator and turned off > the spanning-tree stuff. > > I have three old computers that seem to have no problem booting up on > the system. Also, I recently acquired a Nohrtec Microclient, Sr., > which boots off the system and seems to be capable of running blender > over LTSP. > > I originally wanted 30 thin clients, because my class sizes get that > big, however, it now looks like I will get 15 thin clients for the > rest of this year. Because of the school district's procurement > policies, we are being steered toward Wyse thin clients, which I do > not know much about, but which look like they might make capable thin > clients. I hope to have the thin clients within a few weeks. > > Until then, I have about 10 other computers at my disposal. They are > Lenovo ThinkCentre machines and I have been having problems getting > them to boot on the network. (I cannot touch their hard drives.) It > has been suggested that the problem is the tg3 module, but I'm not > sure what I can do about it. I tried adding NIC=tg3 to the default > file and also backporting the ltsp-client, but to no avail. > > To make these 10 computers useful, I am currently trying to make a > custom live cd to boot them. I installed Fedora 9 on an old machine > at home and livecd-tools. For some reason, the process has crashed > twice, logging me out in the process. In both cases, the computer was > unattended and it may be the problem has to do with power management > (I'll try to disable it). I wonder whether I can get the livecd > platforms to log in and use the LTSP server's /home directory. > > To make blender and other applications run more quickly, I also want > to figure out how to get them to run locally on the clients. The > clients are all powerful enough, even the fanless ones. It seems to > me that the ideal setup would have the LTSP server serve the operating > system and applications to the clients and then let them do most of > the work. You would be able to have low-profile, energy efficient > clients, but you might be able to serve a lot of them with one > reasonable powerful server. > > Best regards, > Steve Crampton > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see From lewis at pcc.com Sun Sep 14 01:36:14 2008 From: lewis at pcc.com (Lewis Holcroft) Date: Sat, 13 Sep 2008 21:36:14 -0400 Subject: [K12OSN] Update on LTSP Booting Speed In-Reply-To: References: Message-ID: Stephen, I'm not sure why wyse came up as posible thin clients. I did some testing with them and found them quite problematic. They are also expensive. Others may have had better luck than I. I have had to work with them in a windows environment also. They have a "feature" that looks for a server to download updates for the OS. It is responsible flooding the network with broadcast packets. I made three attempts to try and resolve the issue with thier support Dept. They could not tell me what caused the traffic. Much Googling got me the hint about the "feature". I find I get much better support from the folks at disklessworkstations.com they even try to fix the problem. Lewis On Sep 13, 2008, at 4:42 PM, "Stephen Crampton" wrote: > Thanks so much to all of you who took the time to respond to numerous > questions I have asked. > > I wanted to update you on what actions I have taken and what the > status of the lab is. > > First, to clarify matters, the server I am currently using has two > Athlon 64-bit processors, running at (I think) 2.4 GHz, and 4 GB of > memory. In addition to the built-in 100Mbps Ethernet card, it has a 1 > Gbps Ethernet card and an IDE hard drive. > > I installed K12LTSP 5EL. By default the installer chose the Gbps > Ethernet card for the LTSP clients. > > I'm using a managed switch that has 24 100Mbps ports and 4 1Gbps > ports. The LTSP server, of course, is plugged into one of the 1Gbps > ports. I went into the management web administrator and turned off > the spanning-tree stuff. > > I have three old computers that seem to have no problem booting up on > the system. Also, I recently acquired a Nohrtec Microclient, Sr., > which boots off the system and seems to be capable of running blender > over LTSP. > > I originally wanted 30 thin clients, because my class sizes get that > big, however, it now looks like I will get 15 thin clients for the > rest of this year. Because of the school district's procurement > policies, we are being steered toward Wyse thin clients, which I do > not know much about, but which look like they might make capable thin > clients. I hope to have the thin clients within a few weeks. > > Until then, I have about 10 other computers at my disposal. They are > Lenovo ThinkCentre machines and I have been having problems getting > them to boot on the network. (I cannot touch their hard drives.) It > has been suggested that the problem is the tg3 module, but I'm not > sure what I can do about it. I tried adding NIC=tg3 to the default > file and also backporting the ltsp-client, but to no avail. > > To make these 10 computers useful, I am currently trying to make a > custom live cd to boot them. I installed Fedora 9 on an old machine > at home and livecd-tools. For some reason, the process has crashed > twice, logging me out in the process. In both cases, the computer was > unattended and it may be the problem has to do with power management > (I'll try to disable it). I wonder whether I can get the livecd > platforms to log in and use the LTSP server's /home directory. > > To make blender and other applications run more quickly, I also want > to figure out how to get them to run locally on the clients. The > clients are all powerful enough, even the fanless ones. It seems to > me that the ideal setup would have the LTSP server serve the operating > system and applications to the clients and then let them do most of > the work. You would be able to have low-profile, energy efficient > clients, but you might be able to serve a lot of them with one > reasonable powerful server. > > Best regards, > Steve Crampton > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see From toddobryan at gmail.com Sun Sep 14 13:04:58 2008 From: toddobryan at gmail.com (Todd O'Bryan) Date: Sun, 14 Sep 2008 09:04:58 -0400 Subject: [K12OSN] LTSP Lab Slow to Boot In-Reply-To: <48CCAC45.2040600@cmosnetworks.com> References: <20080905160038.DEC2A8E0F01@hormel.redhat.com> <1221269781.6781.23.camel@merlin.localnetsolutions.com> <904774730809130916h2a07565bqf6e4280b9bc69fc2@mail.gmail.com> <200809131544.50363.microman@cmosnetworks.com> <904774730809131922k46e73201w4b4f55c96d06d167@mail.gmail.com> <48CCAC45.2040600@cmosnetworks.com> Message-ID: <904774730809140604q256d2d22vcbddcad511363cce@mail.gmail.com> On Sun, Sep 14, 2008 at 2:16 AM, Terrell Prude' Jr. wrote: > So, it sounds like you have a good setup here. > > --TP Thanks! > Interesting...what kind of onboard NICs are these? And what kind of server > motherboard nowadays includes non-Linux-friendly NIC's? I'd like to know, > so I can avoid them like the plague. They're actually Intel NICs and they seem to work fine with the regular 32-bit Linux kernel and the 64-bit kernel, but you get errors about too many connections with the 32-bit server kernel. I can't remember exactly what the problem was...one of my students who headed off to college was trying to track it down and said that the same error messages had been present back to 2006 without ever getting fixed. People on the mailing lists didn't seem to think it was something to worry about, but we were noticing hiccups on the LTSP network, probably because so many clients were trying to connect. I just emailed my student to see if he remembers the details and will send them along when he responds. Todd From dahopkins429 at gmail.com Mon Sep 15 13:34:46 2008 From: dahopkins429 at gmail.com (David Hopkins) Date: Mon, 15 Sep 2008 09:34:46 -0400 Subject: [K12OSN] OT: High load averages with CentOS? Message-ID: I am curious if anyone else is seeing the following: In a classroom of 27 students, they launch Firefox 2.0.0.16, Staroffice8 Impress, and Staroffice8 Writer. The load average goes to around 32 and stays there. There isn't any swap being used (memory usage is at 85%), and %id is around 1-2%. This same system running Fedora 7 ran these same packages in this scenario with a load average of around 6 and %id in the 50% range. I have made certain that I have the same version of FF (and flash and java plugins) as well as the same versions of StarOffice. It is rather confusing to say the least. Max throughput on my NICs (both Gb) is measured at 112Mb/sec which is what I would expect for max (ran a test to check the throughput) though the actual load on the NIC is much lower (as indicated by gnome-system-monitor). The system uses Ultra260 SCSI drives with an Adaptec 2010S in a RAID 1. /home is nfs mounted. It is a dual hyperthreaded Xeon mb. I'm hoping that someone has seen this and can offer a suggestion on how to try and sort out what I might be able to do to alleviate the situation. Sincerely, Dave Hopkins From robark at gmail.com Mon Sep 15 15:36:18 2008 From: robark at gmail.com (Robert Arkiletian) Date: Mon, 15 Sep 2008 08:36:18 -0700 Subject: [K12OSN] OT: High load averages with CentOS? In-Reply-To: References: Message-ID: On Mon, Sep 15, 2008 at 6:34 AM, David Hopkins wrote: > I am curious if anyone else is seeing the following: > > In a classroom of 27 students, they launch Firefox 2.0.0.16, > Staroffice8 Impress, and Staroffice8 Writer. The load average goes to > around 32 and stays there. There isn't any swap being used (memory > usage is at 85%), and %id is around 1-2%. This same system running > Fedora 7 ran these same packages in this scenario with a load average > of around 6 and %id in the 50% range. I have made certain that I have > the same version of FF (and flash and java plugins) as well as the What version of flash? What are the top 10 apps listed by "top"? -- Robert Arkiletian Eric Hamber Secondary, Vancouver, Canada Fl_TeacherTool http://www3.telus.net/public/robark/Fl_TeacherTool/ C++ GUI tutorial http://www3.telus.net/public/robark/ From dahopkins429 at gmail.com Mon Sep 15 15:52:01 2008 From: dahopkins429 at gmail.com (David Hopkins) Date: Mon, 15 Sep 2008 11:52:01 -0400 Subject: [K12OSN] OT: High load averages with CentOS? In-Reply-To: References: Message-ID: On Mon, Sep 15, 2008 at 11:36 AM, Robert Arkiletian wrote: > On Mon, Sep 15, 2008 at 6:34 AM, David Hopkins wrote: >> I am curious if anyone else is seeing the following: >> >> In a classroom of 27 students, they launch Firefox 2.0.0.16, >> Staroffice8 Impress, and Staroffice8 Writer. The load average goes to >> around 32 and stays there. There isn't any swap being used (memory >> usage is at 85%), and %id is around 1-2%. This same system running >> Fedora 7 ran these same packages in this scenario with a load average >> of around 6 and %id in the 50% range. I have made certain that I have >> the same version of FF (and flash and java plugins) as well as the > > What version of flash? > What are the top 10 apps listed by "top"? > Flash is version 124. The top 10 changed at each refresh but were either FF or Staroffice which is what I expected to see. Sincerely, Dave Hopkins From robark at gmail.com Mon Sep 15 16:52:44 2008 From: robark at gmail.com (Robert Arkiletian) Date: Mon, 15 Sep 2008 09:52:44 -0700 Subject: [K12OSN] OT: High load averages with CentOS? In-Reply-To: References: Message-ID: On Mon, Sep 15, 2008 at 8:52 AM, David Hopkins wrote: > On Mon, Sep 15, 2008 at 11:36 AM, Robert Arkiletian wrote: >> On Mon, Sep 15, 2008 at 6:34 AM, David Hopkins wrote: >>> I am curious if anyone else is seeing the following: >>> >>> In a classroom of 27 students, they launch Firefox 2.0.0.16, >>> Staroffice8 Impress, and Staroffice8 Writer. The load average goes to >>> around 32 and stays there. There isn't any swap being used (memory >>> usage is at 85%), and %id is around 1-2%. This same system running >>> Fedora 7 ran these same packages in this scenario with a load average >>> of around 6 and %id in the 50% range. I have made certain that I have >>> the same version of FF (and flash and java plugins) as well as the >> >> What version of flash? >> What are the top 10 apps listed by "top"? >> > > Flash is version 124. The top 10 changed at each refresh but were > either FF or Staroffice which is what I expected to see. I am also using a dual cpu hyperthreaded Xeon (2.8Ghz old netburst technology). I found flash .48 to be much less of a hog. Also I could not continue using firefox because my cpus are just not powerful enough. Especially flash heavy sites. I switched to Opera and I can still have a full class of students browsing. Unfortunately, Opera is not free as in speech but it is free as in beer. Not sure about staroffice. -- Robert Arkiletian Eric Hamber Secondary, Vancouver, Canada Fl_TeacherTool http://www3.telus.net/public/robark/Fl_TeacherTool/ C++ GUI tutorial http://www3.telus.net/public/robark/ From dahopkins429 at gmail.com Mon Sep 15 17:04:38 2008 From: dahopkins429 at gmail.com (David Hopkins) Date: Mon, 15 Sep 2008 13:04:38 -0400 Subject: [K12OSN] OT: High load averages with CentOS? In-Reply-To: References: Message-ID: > I am also using a dual cpu hyperthreaded Xeon (2.8Ghz old netburst > technology). I found flash .48 to be much less of a hog. Also I could > not continue using firefox because my cpus are just not powerful > enough. Especially flash heavy sites. > I switched to Opera and I can still have a full class of students > browsing. Unfortunately, Opera is not free as in speech but it is free > as in beer. > > Not sure about staroffice. > I'll downgrade flash to 48 tonight. It was what I had earlier and upgraded to fix an issue with a state-required app after the state patched the app. There has been another patch since then, so perhaps 48 will work. And I'll find a few teachers that are willing to try Opera to beta test compatibility. Thanks! Dave Hopkins From nils at breun.nl Mon Sep 15 18:00:44 2008 From: nils at breun.nl (Nils Breunese) Date: Mon, 15 Sep 2008 20:00:44 +0200 Subject: [K12OSN] OT: High load averages with CentOS? In-Reply-To: References: Message-ID: <95E910F9-B62A-49C3-9946-997D5178C85C@breun.nl> David Hopkins wrote: >> I am also using a dual cpu hyperthreaded Xeon (2.8Ghz old netburst >> technology). I found flash .48 to be much less of a hog. Also I could >> not continue using firefox because my cpus are just not powerful >> enough. Especially flash heavy sites. >> I switched to Opera and I can still have a full class of students >> browsing. Unfortunately, Opera is not free as in speech but it is >> free >> as in beer. >> >> Not sure about staroffice. >> > > I'll downgrade flash to 48 tonight. It was what I had earlier and > upgraded to fix an issue with a state-required app after the state > patched the app. There has been another patch since then, so perhaps > 48 will work. Just know there were some pretty serious security issues with older versions of the Flash plugin. Nils Breunese. From robark at gmail.com Mon Sep 15 19:12:59 2008 From: robark at gmail.com (Robert Arkiletian) Date: Mon, 15 Sep 2008 12:12:59 -0700 Subject: [K12OSN] OT: High load averages with CentOS? In-Reply-To: <95E910F9-B62A-49C3-9946-997D5178C85C@breun.nl> References: <95E910F9-B62A-49C3-9946-997D5178C85C@breun.nl> Message-ID: On 9/15/08, Nils Breunese wrote: > David Hopkins wrote: > >>> I am also using a dual cpu hyperthreaded Xeon (2.8Ghz old netburst >>> technology). I found flash .48 to be much less of a hog. Also I could >>> not continue using firefox because my cpus are just not powerful >>> enough. Especially flash heavy sites. >>> I switched to Opera and I can still have a full class of students >>> browsing. Unfortunately, Opera is not free as in speech but it is >>> free >>> as in beer. >>> >>> Not sure about staroffice. >>> >> >> I'll downgrade flash to 48 tonight. It was what I had earlier and >> upgraded to fix an issue with a state-required app after the state >> patched the app. There has been another patch since then, so perhaps >> 48 will work. > > Just know there were some pretty serious security issues with older > versions of the Flash plugin. > Yes, correct. Either way, I have to choose between a workable system or security updates. Not fun but backups help. This is one of the reasons I want to go diskless workstation mode next year. -- Robert Arkiletian Eric Hamber Secondary, Vancouver, Canada Fl_TeacherTool http://www3.telus.net/public/robark/Fl_TeacherTool/ C++ GUI tutorial http://www3.telus.net/public/robark/ From toddobryan at gmail.com Tue Sep 16 16:02:09 2008 From: toddobryan at gmail.com (Todd O'Bryan) Date: Tue, 16 Sep 2008 12:02:09 -0400 Subject: [K12OSN] LTSP Lab Slow to Boot In-Reply-To: <904774730809140604q256d2d22vcbddcad511363cce@mail.gmail.com> References: <20080905160038.DEC2A8E0F01@hormel.redhat.com> <1221269781.6781.23.camel@merlin.localnetsolutions.com> <904774730809130916h2a07565bqf6e4280b9bc69fc2@mail.gmail.com> <200809131544.50363.microman@cmosnetworks.com> <904774730809131922k46e73201w4b4f55c96d06d167@mail.gmail.com> <48CCAC45.2040600@cmosnetworks.com> <904774730809140604q256d2d22vcbddcad511363cce@mail.gmail.com> Message-ID: <904774730809160902g205281fenc84fca8518c3021c@mail.gmail.com> I was wrong. They're nVidia onboard NICs. Here are the specs: Tyan S2927 Thunder n3600B board "Two nForce Pro 3600 integrated MAC with two Marvell 88E1116 single port Gigabit Ethernet PHY" The error we were getting was: [38050.090000] eth0: too many iterations (21) in nv_nic_irq. [38193.060000] eth0: too many iterations (21) in nv_nic_irq. Again, this only happened with the 32-bit server kernel. 32-bit desktop and 64-bit seemed fine. Todd On Sun, Sep 14, 2008 at 9:04 AM, Todd O'Bryan wrote: > On Sun, Sep 14, 2008 at 2:16 AM, Terrell Prude' Jr. > wrote: >> So, it sounds like you have a good setup here. >> >> --TP > > Thanks! > >> Interesting...what kind of onboard NICs are these? And what kind of server >> motherboard nowadays includes non-Linux-friendly NIC's? I'd like to know, >> so I can avoid them like the plague. > > They're actually Intel NICs and they seem to work fine with the > regular 32-bit Linux kernel and the 64-bit kernel, but you get errors > about too many connections with the 32-bit server kernel. I can't > remember exactly what the problem was...one of my students who headed > off to college was trying to track it down and said that the same > error messages had been present back to 2006 without ever getting > fixed. People on the mailing lists didn't seem to think it was > something to worry about, but we were noticing hiccups on the LTSP > network, probably because so many clients were trying to connect. > > I just emailed my student to see if he remembers the details and will > send them along when he responds. > > Todd > From robark at gmail.com Tue Sep 16 17:15:50 2008 From: robark at gmail.com (Robert Arkiletian) Date: Tue, 16 Sep 2008 10:15:50 -0700 Subject: [K12OSN] LTSP Lab Slow to Boot In-Reply-To: <904774730809160902g205281fenc84fca8518c3021c@mail.gmail.com> References: <20080905160038.DEC2A8E0F01@hormel.redhat.com> <1221269781.6781.23.camel@merlin.localnetsolutions.com> <904774730809130916h2a07565bqf6e4280b9bc69fc2@mail.gmail.com> <200809131544.50363.microman@cmosnetworks.com> <904774730809131922k46e73201w4b4f55c96d06d167@mail.gmail.com> <48CCAC45.2040600@cmosnetworks.com> <904774730809140604q256d2d22vcbddcad511363cce@mail.gmail.com> <904774730809160902g205281fenc84fca8518c3021c@mail.gmail.com> Message-ID: On 9/16/08, Todd O'Bryan wrote: > I was wrong. They're nVidia onboard NICs. > > Here are the specs: > > Tyan S2927 Thunder n3600B board > "Two nForce Pro 3600 integrated MAC with two Marvell 88E1116 single > port Gigabit Ethernet PHY" > > The error we were getting was: > > [38050.090000] eth0: too many iterations (21) in nv_nic_irq. > [38193.060000] eth0: too many iterations (21) in nv_nic_irq. > Todd, Are they using the sky2 driver? Try checking with lsmod. -- Robert Arkiletian Eric Hamber Secondary, Vancouver, Canada Fl_TeacherTool http://www3.telus.net/public/robark/Fl_TeacherTool/ C++ GUI tutorial http://www3.telus.net/public/robark/ From toddobryan at gmail.com Tue Sep 16 18:00:06 2008 From: toddobryan at gmail.com (Todd O'Bryan) Date: Tue, 16 Sep 2008 14:00:06 -0400 Subject: [K12OSN] LTSP Lab Slow to Boot In-Reply-To: References: <20080905160038.DEC2A8E0F01@hormel.redhat.com> <1221269781.6781.23.camel@merlin.localnetsolutions.com> <904774730809130916h2a07565bqf6e4280b9bc69fc2@mail.gmail.com> <200809131544.50363.microman@cmosnetworks.com> <904774730809131922k46e73201w4b4f55c96d06d167@mail.gmail.com> <48CCAC45.2040600@cmosnetworks.com> <904774730809140604q256d2d22vcbddcad511363cce@mail.gmail.com> <904774730809160902g205281fenc84fca8518c3021c@mail.gmail.com> Message-ID: <904774730809161100k5a457511pf3c9bb8ecdd9f0af@mail.gmail.com> I don't see any sky2 in the lsmod output, but I don't know where to look. Here it is: sysadmin at 200-202-server-2:~$ lsmod Module Size Used by rfcomm 41744 2 l2cap 25600 13 rfcomm bluetooth 60900 4 rfcomm,l2cap ppdev 10372 0 powernow_k8 16704 3 cpufreq_conservative 8712 0 cpufreq_stats 7104 0 cpufreq_userspace 5284 0 cpufreq_ondemand 9740 2 freq_table 5536 3 powernow_k8,cpufreq_stats,cpufreq_ondemand cpufreq_powersave 2688 0 dock 11280 0 video 19856 0 output 4736 1 video container 5632 0 sbs 15112 0 sbshc 7680 1 sbs battery 14212 0 iptable_filter 3840 0 ip_tables 14820 1 iptable_filter x_tables 16132 1 ip_tables ac 6916 0 sbp2 24456 0 parport_pc 36644 0 lp 12324 0 parport 37704 3 ppdev,parport_pc,lp loop 19076 0 nfs 261900 0 lockd 67720 1 nfs nfs_acl 4608 1 nfs sunrpc 185372 5 nfs,lockd,nfs_acl af_packet 23684 4 snd_hda_intel 344600 0 psmouse 40208 0 snd_pcm_oss 42016 0 snd_mixer_oss 17792 1 snd_pcm_oss serio_raw 7940 0 snd_pcm 78596 2 snd_hda_intel,snd_pcm_oss snd_page_alloc 11528 2 snd_hda_intel,snd_pcm snd_hwdep 10500 1 snd_hda_intel snd_seq_dummy 4868 0 snd_seq_oss 35456 0 snd_seq_midi 9248 0 snd_rawmidi 25632 1 snd_seq_midi button 9232 0 i2c_nforce2 7680 0 snd_seq_midi_event 8320 2 snd_seq_oss,snd_seq_midi snd_seq 54096 6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event snd_timer 24836 2 snd_pcm,snd_seq snd_seq_device 9612 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq snd 56868 11 snd_hda_intel,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_hwdep,snd_seq_dummy,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device i2c_core 24832 1 i2c_nforce2 evdev 12928 3 pcspkr 4224 0 k8temp 6656 0 soundcore 8800 1 snd shpchp 34452 0 pci_hotplug 30880 1 shpchp ext3 136584 1 jbd 48404 1 ext3 mbcache 9600 1 ext3 sg 36496 0 sr_mod 17828 0 cdrom 37280 1 sr_mod sd_mod 30720 6 ata_generic 8324 0 pata_amd 14084 0 sata_nv 27656 4 pata_acpi 8320 0 ohci1394 33968 0 libata 159344 4 ata_generic,pata_amd,sata_nv,pata_acpi ieee1394 93752 2 sbp2,ohci1394 skge 43664 0 ehci_hcd 38412 0 scsi_mod 151180 5 sbp2,sg,sr_mod,sd_mod,libata floppy 59332 0 forcedeth 52108 0 ohci_hcd 25604 0 usbcore 146028 3 ehci_hcd,ohci_hcd raid10 25856 0 raid456 129040 0 async_xor 4992 1 raid456 async_memcpy 3840 1 raid456 async_tx 9292 3 raid456,async_xor,async_memcpy xor 16136 2 raid456,async_xor raid1 25728 2 raid0 9344 0 multipath 9600 0 linear 7296 0 md_mod 82068 8 raid10,raid456,raid1,raid0,multipath,linear thermal 16796 0 processor 37000 2 powernow_k8,thermal fan 5636 0 fbcon 42656 0 tileblit 3456 1 fbcon font 9472 1 fbcon bitblit 6784 1 fbcon softcursor 3072 1 bitblit fuse 50580 1 On Tue, Sep 16, 2008 at 1:15 PM, Robert Arkiletian wrote: > On 9/16/08, Todd O'Bryan wrote: >> I was wrong. They're nVidia onboard NICs. >> >> Here are the specs: >> >> Tyan S2927 Thunder n3600B board >> "Two nForce Pro 3600 integrated MAC with two Marvell 88E1116 single >> port Gigabit Ethernet PHY" >> >> The error we were getting was: >> >> [38050.090000] eth0: too many iterations (21) in nv_nic_irq. >> [38193.060000] eth0: too many iterations (21) in nv_nic_irq. >> > > Todd, > > Are they using the sky2 driver? Try checking with lsmod. > > -- > Robert Arkiletian > Eric Hamber Secondary, Vancouver, Canada > Fl_TeacherTool http://www3.telus.net/public/robark/Fl_TeacherTool/ > C++ GUI tutorial http://www3.telus.net/public/robark/ > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > From ltsp at symbio-technologies.com Tue Sep 16 19:18:18 2008 From: ltsp at symbio-technologies.com (Gideon Romm) Date: Tue, 16 Sep 2008 15:18:18 -0400 Subject: [K12OSN] LTSP Lab Slow to Boot In-Reply-To: References: <20080905160038.DEC2A8E0F01@hormel.redhat.com> Message-ID: <1221592698.20204.42.camel@bart> Stephen, I don't know if you ever resolved your issue, but if it takes a long time to sudo, chances are you have DNS issues. Check to make sure your /etc/hosts, /etc/resolv.conf, and /etc/nsswitch.conf all look healthy. Then, check connectivity to the DNS server. "sudo" does a get_hostname() lookup, and if your hostname lookups do not work well, this will cause grief on thin client booting, as well as slowness overall. -Gideon On Fri, 2008-09-05 at 12:52 -0400, Crampton, Stephen C. wrote: > The information contained in this message may be privileged and confidential and protected from disclosure. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by replying to the message and deleting it from your computer. Under Florida law, e-mail addresses are public records. If you do not want your e-mail address released in response to a public-records request, do not send electronic mail to this entity. Instead, contact this office by phone or in writing. > _______________________________________________ K12OSN mailing list K12OSN at redhat.com https://www.redhat.com/mailman/listinfo/k12osn For more info see -- -------------------------------------------------------- Gideon Romm | Proud LTSP Developer ltsp at symbio-technologies.com Support LTSP! Buy your hardware at: www.DisklessWorkstations.com www.DisklessThinClients.com (use coupon code: LTSP5P for 5% off thin clients from DisklessThinClients.com) From monteslu at cox.net Tue Sep 16 20:22:21 2008 From: monteslu at cox.net (monteslu at cox.net) Date: Tue, 16 Sep 2008 13:22:21 -0700 Subject: [K12OSN] LTSP Lab Slow to Boot In-Reply-To: <1221592698.20204.42.camel@bart> Message-ID: <20080916162221.QKT0G.312613.imail@fed1rmwml34> This is a great piece of information. I also find sudo to be painfully slow. Is there a reason it has to do a hostname lookup? Can that be turned off? Luis ---- Gideon Romm wrote: > Stephen, > > I don't know if you ever resolved your issue, but if it takes a long > time to sudo, chances are you have DNS issues. > > Check to make sure your /etc/hosts, /etc/resolv.conf, > and /etc/nsswitch.conf all look healthy. > > Then, check connectivity to the DNS server. > > "sudo" does a get_hostname() lookup, and if your hostname lookups do not > work well, this will cause grief on thin client booting, as well as > slowness overall. > > -Gideon > > > On Fri, 2008-09-05 at 12:52 -0400, Crampton, Stephen C. wrote: > > The information contained in this message may be privileged and confidential and protected from disclosure. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by replying to the message and deleting it from your computer. Under Florida law, e-mail addresses are public records. If you do not want your e-mail address released in response to a public-records request, do not send electronic mail to this entity. Instead, contact this office by phone or in writing. > > _______________________________________________ K12OSN mailing list K12OSN at redhat.com https://www.redhat.com/mailman/listinfo/k12osn For more info see > -- > -------------------------------------------------------- > Gideon Romm | Proud LTSP Developer > ltsp at symbio-technologies.com > > Support LTSP! Buy your hardware at: > > www.DisklessWorkstations.com > www.DisklessThinClients.com > > (use coupon code: LTSP5P for 5% off thin clients from DisklessThinClients.com) > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see From robark at gmail.com Tue Sep 16 22:27:22 2008 From: robark at gmail.com (Robert Arkiletian) Date: Tue, 16 Sep 2008 15:27:22 -0700 Subject: [K12OSN] LTSP Lab Slow to Boot In-Reply-To: <904774730809161100k5a457511pf3c9bb8ecdd9f0af@mail.gmail.com> References: <20080905160038.DEC2A8E0F01@hormel.redhat.com> <1221269781.6781.23.camel@merlin.localnetsolutions.com> <904774730809130916h2a07565bqf6e4280b9bc69fc2@mail.gmail.com> <200809131544.50363.microman@cmosnetworks.com> <904774730809131922k46e73201w4b4f55c96d06d167@mail.gmail.com> <48CCAC45.2040600@cmosnetworks.com> <904774730809140604q256d2d22vcbddcad511363cce@mail.gmail.com> <904774730809160902g205281fenc84fca8518c3021c@mail.gmail.com> <904774730809161100k5a457511pf3c9bb8ecdd9f0af@mail.gmail.com> Message-ID: On 9/16/08, Todd O'Bryan wrote: > I don't see any sky2 in the lsmod output, but I don't know where to > look. Here it is: The lines of importance are skge 43664 0 ... forcedeth 52108 0 nvidia's driver forcedeth (nforce ethernet) is reverse engineered. It's not the best. skge I believe is the Marvell/SysKonnect gigabit ethernet driver. I think Stephen Hemminger wrote the driver with docs provided under NDA. Even still, I think he mentioned it was a difficult driver to implement and others have also had problems with it. not sure why you have both modules loaded. Maybe one wraps the other. If you continue to have problems with these then try an Intel pci-e or pci-x gigabit nic for eth0. -- Robert Arkiletian Eric Hamber Secondary, Vancouver, Canada Fl_TeacherTool http://www3.telus.net/public/robark/Fl_TeacherTool/ C++ GUI tutorial http://www3.telus.net/public/robark/ From toddobryan at gmail.com Tue Sep 16 23:43:42 2008 From: toddobryan at gmail.com (Todd O'Bryan) Date: Tue, 16 Sep 2008 19:43:42 -0400 Subject: [K12OSN] LTSP Lab Slow to Boot In-Reply-To: References: <20080905160038.DEC2A8E0F01@hormel.redhat.com> <904774730809130916h2a07565bqf6e4280b9bc69fc2@mail.gmail.com> <200809131544.50363.microman@cmosnetworks.com> <904774730809131922k46e73201w4b4f55c96d06d167@mail.gmail.com> <48CCAC45.2040600@cmosnetworks.com> <904774730809140604q256d2d22vcbddcad511363cce@mail.gmail.com> <904774730809160902g205281fenc84fca8518c3021c@mail.gmail.com> <904774730809161100k5a457511pf3c9bb8ecdd9f0af@mail.gmail.com> Message-ID: <904774730809161643i7e08dde8j8d6cf85ad61cca8b@mail.gmail.com> Thanks. These are on the board, so we just bought a new card and are running the interface to the clients on eth2. On Tue, Sep 16, 2008 at 6:27 PM, Robert Arkiletian wrote: > On 9/16/08, Todd O'Bryan wrote: >> I don't see any sky2 in the lsmod output, but I don't know where to >> look. Here it is: > > The lines of importance are > > skge 43664 0 > ... > forcedeth 52108 0 > > nvidia's driver forcedeth (nforce ethernet) is reverse engineered. > It's not the best. > > skge I believe is the Marvell/SysKonnect gigabit ethernet driver. I > think Stephen Hemminger wrote the driver with docs provided under NDA. > Even still, I think he mentioned it was a difficult driver to > implement and others have also had problems with it. > > not sure why you have both modules loaded. Maybe one wraps the other. > If you continue to have problems with these then try an Intel pci-e or > pci-x gigabit nic for eth0. > > -- > Robert Arkiletian > Eric Hamber Secondary, Vancouver, Canada > Fl_TeacherTool http://www3.telus.net/public/robark/Fl_TeacherTool/ > C++ GUI tutorial http://www3.telus.net/public/robark/ > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > From timlegge at gmail.com Wed Sep 17 00:54:12 2008 From: timlegge at gmail.com (Timothy Legge) Date: Tue, 16 Sep 2008 21:54:12 -0300 Subject: [K12OSN] School Server Message-ID: Hi I am pricing some servers and it is amazing the hardware you can get now. I look after a Boy's and Girls club that might be similar to some schools. We have staff and kids; up to now we have separated the kids from the staff by using separate servers with each having a separate network using the same internet connection. However, since I am pricing a replacement server for the kids I wondered whether the separation might not be necessary. I could get one server to do the 30 or so clients or just continue to break it up with 10+ staff clients and 20+ kids clients. The security side of me says to keep the kids as far from the staff server as possible but on the other hand, for the same money, I could go with two server and have fail over/load balancing. Any thoughts? Tim From microman at cmosnetworks.com Wed Sep 17 01:47:02 2008 From: microman at cmosnetworks.com (Terrell Prude' Jr.) Date: Tue, 16 Sep 2008 21:47:02 -0400 Subject: [K12OSN] School Server In-Reply-To: References: Message-ID: <48D06196.9090001@cmosnetworks.com> Timothy Legge wrote: > Hi > > I am pricing some servers and it is amazing the hardware you can get > now. I look after a Boy's and Girls club that might be similar to > some schools. We have staff and kids; up to now we have separated the > kids from the staff by using separate servers with each having a > separate network using the same internet connection. > > However, since I am pricing a replacement server for the kids I > wondered whether the separation might not be necessary. I could get > one server to do the 30 or so clients or just continue to break it up > with 10+ staff clients and 20+ kids clients. > > The security side of me says to keep the kids as far from the staff > server as possible but on the other hand, for the same money, I could > go with two server and have fail over/load balancing. > > Any thoughts? > > Tim > I'm with you on the security concern. One for the kids, one for the adults. That's especially so, given that the adults are presumably conducting B & G Club business on the staff server. At a minimum, they're probably doing some online banking or buying stuff online. Remember that the biggest considerations for LTSP servers are as follows: 1.) sufficient DRAM, 2.) sufficient network bandwidth, and 3.) plenty of CPU. Multiple cores are a major plus here. You don't need a fancy "server grade" box for this. Both Intel and AMD make monster quad-core chips now, with Intel somewhat in the speed lead. DRAM is cheap, and copper Gig-E is cheap. Just build a couple of boxes w/ 4GB DRAM each, thus realizing yet further savings *and* knowing that you picked good hardware. --TP From ascensiontech at gmail.com Wed Sep 17 03:20:17 2008 From: ascensiontech at gmail.com (Peter Hartmann) Date: Tue, 16 Sep 2008 23:20:17 -0400 Subject: [K12OSN] nvidia binary Message-ID: <9bd317560809162020q3961af12o45c07a9a0e4245c8@mail.gmail.com> I think the answer is no, but....I was wondering if anyone has a binary nvidia driver for kernel 2.6.17.8-ltsp1? OR does anyone have a copy of Peter Ehrenberg's package for ltsp 4.2 update 2 kernel 2.6.17.3? Thanks much! Peter From carl at snarlnet.com Wed Sep 17 07:51:40 2008 From: carl at snarlnet.com (Carl Keil) Date: Wed, 17 Sep 2008 00:51:40 -0700 Subject: [K12OSN] OT - Getting Ubuntu 8.04 to Authenticate from LDAP Server Message-ID: <48D0B70C.7010408@snarlnet.com> Hey, Can someone tell me the procedure to get an Ubuntu 8.04 workstation to log in via LDAP? In what seem to be the most authoritative instructions I can find it says to fire up ./smbldap ldapclient and "answer a few questions". I can't find ldapclient or find a way to install it on Ubuntu. I've tried a method where I'm editing all sorts of pam auth files by hand and it's not working and for some reason my workstation still logs in, but it's incredibly slow now. Also, does anyone know if XP Home Edition can use LDAP for authentication, or can only XP Pro do it? Any suggestions would be appreciated. Thanks, ck From scott at hosef.org Wed Sep 17 08:28:09 2008 From: scott at hosef.org (R. Scott Belford) Date: Tue, 16 Sep 2008 22:28:09 -1000 Subject: [K12OSN] OT - Getting Ubuntu 8.04 to Authenticate from LDAP Server In-Reply-To: <48D0B70C.7010408@snarlnet.com> References: <48D0B70C.7010408@snarlnet.com> Message-ID: This is from memory - I am not in front of a client. I have done this a lot recently, and I am pretty sure it is right. Ubuntu, beginning with 8.04, introduced a good tool for authentication. If you will be mapping home from the LDAP server, then mkdir /home/$ldapexport vim /etc/fstab and add ldapipaddress:/home/$ldapexport /home/$ldapexport nfs rsize=8192,wsize=8192,intr=14,timeo 0 0 sudo apt-get install nfs-common portmap then sudo apt-get install ldap-auth-config The install will prompt you for your LDAP settings. Then, after install, run sudo ldap-auth-client -a -p lac_ldap to inject those variables logout. Then either 1. ctrl+alt+F1, login, sudo mount -a, exit, ctrl+alt+F7, 2. Reboot Now try entering a user with a shared home directory on the ldap server. Hopefully this helps a bit --scott On Tue, Sep 16, 2008 at 9:51 PM, Carl Keil wrote: > Hey, > > Can someone tell me the procedure to get an Ubuntu 8.04 workstation to log > in via LDAP? In what seem to be the most authoritative instructions I can > find it says to fire up ./smbldap ldapclient and "answer a few questions". > I can't find ldapclient or find a way to install it on Ubuntu. I've tried > a method where I'm editing all sorts of pam auth files by hand and it's not > working and for some reason my workstation still logs in, but it's > incredibly slow now. > > Also, does anyone know if XP Home Edition can use LDAP for authentication, > or can only XP Pro do it? > > Any suggestions would be appreciated. > > Thanks, > > ck > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > -------------- next part -------------- An HTML attachment was scrubbed... URL: From micha at arava.co.il Wed Sep 17 09:04:12 2008 From: micha at arava.co.il (Micha Silver) Date: Wed, 17 Sep 2008 12:04:12 +0300 Subject: [K12OSN] School Server In-Reply-To: References: Message-ID: <48D0C80C.4030306@arava.co.il> Timothy Legge wrote: > Hi > > I am pricing some servers and it is amazing the hardware you can get > now. I look after a Boy's and Girls club that might be similar to > some schools. We have staff and kids; up to now we have separated the > kids from the staff by using separate servers with each having a > separate network using the same internet connection. > > However, since I am pricing a replacement server for the kids I > wondered whether the separation might not be necessary. I could get > one server to do the 30 or so clients or just continue to break it up > with 10+ staff clients and 20+ kids clients. > > The security side of me says to keep the kids as far from the staff > server as possible but on the other hand, for the same money, I could > go with two server and have fail over/load balancing. > > Any thoughts? > > Maybe virtualization? Put both servers on one XXL box... Micha > Tim > > -- Micha Silver Arava Development Co +972-8-6592270 From rob.owens at biochemfluidics.com Wed Sep 17 11:31:33 2008 From: rob.owens at biochemfluidics.com (Rob Owens) Date: Wed, 17 Sep 2008 07:31:33 -0400 Subject: [K12OSN] OT - Getting Ubuntu 8.04 to Authenticate from LDAP Server In-Reply-To: <48D0B70C.7010408@snarlnet.com> References: <48D0B70C.7010408@snarlnet.com> Message-ID: <48D0EA95.5080007@biochemfluidics.com> Carl Keil wrote: > Hey, > > Can someone tell me the procedure to get an Ubuntu 8.04 workstation to > log in via LDAP? In what seem to be the most authoritative instructions > I can find it says to fire up ./smbldap ldapclient and "answer a few > questions". I think that's a reference to the smbldap-installer scripts, located here: http://majen.net/smbldap/ -Rob ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** From rob.owens at biochemfluidics.com Wed Sep 17 11:40:41 2008 From: rob.owens at biochemfluidics.com (Rob Owens) Date: Wed, 17 Sep 2008 07:40:41 -0400 Subject: [K12OSN] School Server In-Reply-To: <48D0C80C.4030306@arava.co.il> References: <48D0C80C.4030306@arava.co.il> Message-ID: <48D0ECB9.30704@biochemfluidics.com> Micha Silver wrote: > Timothy Legge wrote: >> Hi >> >> I am pricing some servers and it is amazing the hardware you can get >> now. I look after a Boy's and Girls club that might be similar to >> some schools. We have staff and kids; up to now we have separated the >> kids from the staff by using separate servers with each having a >> separate network using the same internet connection. >> >> However, since I am pricing a replacement server for the kids I >> wondered whether the separation might not be necessary. I could get >> one server to do the 30 or so clients or just continue to break it up >> with 10+ staff clients and 20+ kids clients. >> >> The security side of me says to keep the kids as far from the staff >> server as possible but on the other hand, for the same money, I could >> go with two server and have fail over/load balancing. >> >> Any thoughts? >> >> > Maybe virtualization? Put both servers on one XXL box... > Micha I've successfully done this using virtualbox-ose on Debian Lenny. I've been using it to test LTSP 5. I also agree with Terrell that you don't necessarily need server hardware. I have a desktop-class whitebox computer that serves about 16 clients right now. Here's my recommendation for a budget LTSP server: 4GB or more RAM 2x SATA drives, configured in software RAID 1 Gigabit NIC Get the best CPU you can afford. I usually pick a dual-core model just below the big price jump, although I think if I was building one today I'd be looking at a quad-core CPU. Motherboard: I usually try to find one with onboard video, to save a couple buck by not buying a video card. I also get at least 4 memory slots and 4 SATA ports (sometimes 6 SATA ports). You can easily build something like this for $800 or less if you buy the parts on newegg.com or somewhere similar. -Rob ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** From thewhitmers at gmail.com Wed Sep 17 12:30:00 2008 From: thewhitmers at gmail.com (David Whitmer) Date: Wed, 17 Sep 2008 08:30:00 -0400 Subject: [K12OSN] OT - Getting Ubuntu 8.04 to Authenticate from LDAP Server In-Reply-To: <48D0B70C.7010408@snarlnet.com> References: <48D0B70C.7010408@snarlnet.com> Message-ID: On Wed, Sep 17, 2008 at 3:51 AM, Carl Keil wrote: > Hey, > > Can someone tell me the procedure to get an Ubuntu 8.04 workstation to log > in via LDAP? In what seem to be the most authoritative instructions I can > find it says to fire up ./smbldap ldapclient and "answer a few questions". > I can't find ldapclient or find a way to install it on Ubuntu. I've tried > a method where I'm editing all sorts of pam auth files by hand and it's not > working and for some reason my workstation still logs in, but it's > incredibly slow now. > > Also, does anyone know if XP Home Edition can use LDAP for authentication, > or can only XP Pro do it? > > Any suggestions would be appreciated. > > Thanks, > > ck > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > Carl, You would need to use Pro to have a Windows XP version that can authenticate against LDAP. I've done that with a server set up using the smbldap-installer scripts (mentioned in another reply to this thread), and it works really well. David -- David Whitmer -------------- next part -------------- An HTML attachment was scrubbed... URL: From ltsp at symbio-technologies.com Wed Sep 17 14:02:47 2008 From: ltsp at symbio-technologies.com (Gideon Romm) Date: Wed, 17 Sep 2008 10:02:47 -0400 Subject: [K12OSN] LTSP Lab Slow to Boot In-Reply-To: <20080916162221.QKT0G.312613.imail@fed1rmwml34> References: <20080916162221.QKT0G.312613.imail@fed1rmwml34> Message-ID: <1221660167.31373.6.camel@bart> Well, there are two answers to this: 1. No. :) It cannot be turned off (as far as I know), because part of sudo's capabilities are to limit what can be run as root by a particular user *from a particular machine*, meaning Joe can run xyz from localhost, but not from the fileserver remotely. So, to determine host, it needs to lookup hostname. 2. If your "sudo" is slow for this reason, then it speaks to much larger DNS issues that are most likely making lots of other things slow. Your users most likely are not slow because they run sudo. They will be slow for the same reasons that sudo is slow. So, better to fix the root cause of the slowness (no pun intended) :). Cheers, -Gadi On Tue, 2008-09-16 at 13:22 -0700, monteslu at cox.net wrote: > This is a great piece of information. I also find sudo to be painfully slow. > > Is there a reason it has to do a hostname lookup? Can that be turned off? > > Luis > > > > ---- Gideon Romm wrote: > > Stephen, > > > > I don't know if you ever resolved your issue, but if it takes a long > > time to sudo, chances are you have DNS issues. > > > > Check to make sure your /etc/hosts, /etc/resolv.conf, > > and /etc/nsswitch.conf all look healthy. > > > > Then, check connectivity to the DNS server. > > > > "sudo" does a get_hostname() lookup, and if your hostname lookups do not > > work well, this will cause grief on thin client booting, as well as > > slowness overall. > > > > -Gideon > > > > > > On Fri, 2008-09-05 at 12:52 -0400, Crampton, Stephen C. wrote: > > > The information contained in this message may be privileged and confidential and protected from disclosure. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by replying to the message and deleting it from your computer. Under Florida law, e-mail addresses are public records. If you do not want your e-mail address released in response to a public-records request, do not send electronic mail to this entity. Instead, contact this office by phone or in writing. > > > _______________________________________________ K12OSN mailing list K12OSN at redhat.com https://www.redhat.com/mailman/listinfo/k12osn For more info see > > -- > > -------------------------------------------------------- > > Gideon Romm | Proud LTSP Developer > > ltsp at symbio-technologies.com > > > > Support LTSP! Buy your hardware at: > > > > www.DisklessWorkstations.com > > www.DisklessThinClients.com > > > > (use coupon code: LTSP5P for 5% off thin clients from DisklessThinClients.com) > > > > _______________________________________________ > > K12OSN mailing list > > K12OSN at redhat.com > > https://www.redhat.com/mailman/listinfo/k12osn > > For more info see > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see -- -------------------------------------------------------- Gideon Romm | Proud LTSP Developer ltsp at symbio-technologies.com Support LTSP! Buy your hardware at: www.DisklessWorkstations.com www.DisklessThinClients.com (use coupon code: LTSP5P for 5% off thin clients from DisklessThinClients.com) From robert.pogson at gmail.com Wed Sep 17 17:17:43 2008 From: robert.pogson at gmail.com (robert pogson) Date: Wed, 17 Sep 2008 12:17:43 -0500 Subject: [K12OSN] Re: LTSP Lab Slow to Boot (Todd O'Bryan) Message-ID: <6e87faa70809171017j6b27261ew2a5d0ba8c7d101df@mail.gmail.com> I had this problem two years ago. I had to tune the forcedeth drivers with module options. It was crazy. The driver would not be able to clear the interrupt flag and just pause. I finally adjusted the parameters to polling instead of interrupt service. Fortunately this only affected NFS and it was not terribly busy. see http://users.sosdg.org/~qiyong/lxr/source/drivers/net/forcedeth.c?v=2.6.10 " * Known bugs:* 84 * * We suspect that on some hardware no TX done interrupts are generated.* 85 * * This means recovery from netif_stop_queue only happens if the hw timer* 86 * * interrupt fires (100 times/second, configurable with NVREG_POLL_DEFAULT)* 87 * * and the timer is active in the IRQMask, or if a rx packet arrives by chance.* 88 * * If your hardware reliably generates tx done interrupts, then you can remove* 89 * * DEV_NEED_TIMERIRQ from the driver_data flags.* 90 * * DEV_NEED_TIMERIRQ will not harm you on sane hardware, only generating a few* 91 * * superfluous timer interrupts from the nic.* " > > " > > */** > 485 * * Maximum number of loops until we assume that a bit in the irq mask* > 486 * * is stuck. Overridable with module param.* > 487 * */* > 488 static int max_interrupt_work = 5; > > > > " " MODULE_PARM_DESC (max_interrupt_work , *"forcedeth maximum events handled per interrupt"*); " Other versions have more options like: http://www.gelato.unsw.edu.au/lxr/source/drivers/net/forcedeth.c " module_param (max_interrupt_work , int, 0); 3406 MODULE_PARM_DESC (max_interrupt_work , *"forcedeth maximum events handled per interrupt"*); 3407 module_param (optimization_mode , int, 0); 3408 MODULE_PARM_DESC (optimization_mode , *"In throughput mode (0), every tx & rx packet will generate an interrupt. In CPU mode (1), interrupts are controlled by a timer."*); 3409 module_param (poll_interval , int, 0); 3410 MODULE_PARM_DESC (poll_interval , *"Interval determines how frequent timer interrupt is generated by [(time_in_micro_secs * 100) / (2^10)]. Min is 0 and Max is 65535."*); 3411 module_param (disable_msi , int, 0); 3412 MODULE_PARM_DESC (disable_msi , *"Disable MSI interrupts by setting to 1."*); 3413 module_param (disable_msix , int, 0); 3414 MODULE_PARM_DESC (disable_msix , *"Disable MSIX interrupts by setting to 1."*); 3415 3416 MODULE_AUTHOR (*"Manfred Spraul "*); 3417 MODULE_DESCRIPTION (*"Reverse Engineered nForce ethernet driver"*); 3418 MODULE_LICENSE (*"GPL"*); " I have long forgotten the settings I used, but this may help you find where to look. My recollection is that I polled with optimization_mode=1 poll_interval=10000 Your guess is as good as mine what the units were. I just know I could transfer 112 MB/s with it. Thank Goodness we have open source... ;-) -------------- next part -------------- An HTML attachment was scrubbed... URL: From toddobryan at gmail.com Wed Sep 17 17:34:40 2008 From: toddobryan at gmail.com (Todd O'Bryan) Date: Wed, 17 Sep 2008 13:34:40 -0400 Subject: [K12OSN] Re: LTSP Lab Slow to Boot (Todd O'Bryan) In-Reply-To: <6e87faa70809171017j6b27261ew2a5d0ba8c7d101df@mail.gmail.com> References: <6e87faa70809171017j6b27261ew2a5d0ba8c7d101df@mail.gmail.com> Message-ID: <904774730809171034r2554004es56693b3fa7d32321@mail.gmail.com> New gigabit card with no driver problems = $20. Sanity = priceless. Todd 2008/9/17 robert pogson > I had this problem two years ago. I had to tune the forcedeth drivers with > module options. It was crazy. The driver would not be able to clear the > interrupt flag and just pause. I finally adjusted the parameters to polling > instead of interrupt service. Fortunately this only affected NFS and it was > not terribly busy. > > see > http://users.sosdg.org/~qiyong/lxr/source/drivers/net/forcedeth.c?v=2.6.10 > > " > > * Known bugs:* > 84 * * We suspect that on some hardware no TX done interrupts are generated.* > > 85 * * This means recovery from netif_stop_queue only happens if the hw timer* > 86 * * interrupt fires (100 times/second, configurable with NVREG_POLL_DEFAULT)* > > 87 * * and the timer is active in the IRQMask, or if a rx packet arrives by chance.* > 88 * * If your hardware reliably generates tx done interrupts, then you can remove* > > 89 * * DEV_NEED_TIMERIRQ from the driver_data flags.* > 90 * * DEV_NEED_TIMERIRQ will not harm you on sane hardware, only generating a few* > > 91 * * superfluous timer interrupts from the nic.* > > " > >> >> " >> >> */** >> 485 * * Maximum number of loops until we assume that a bit in the irq mask* >> 486 * * is stuck. Overridable with module param.* >> 487 * */* >> 488 static int max_interrupt_work = 5; >> >> > >> >> " > > > " > > MODULE_PARM_DESC (max_interrupt_work , *"forcedeth maximum events handled per interrupt"*); > > > " > > Other versions have more options like: > http://www.gelato.unsw.edu.au/lxr/source/drivers/net/forcedeth.c > " > > module_param (max_interrupt_work , int, 0); > 3406 MODULE_PARM_DESC (max_interrupt_work , *"forcedeth maximum events handled per interrupt"*); > 3407 module_param (optimization_mode , int, 0); > 3408 MODULE_PARM_DESC (optimization_mode , *"In throughput mode (0), every tx & rx packet will generate an interrupt. In CPU mode (1), interrupts are controlled by a timer."*); > 3409 module_param (poll_interval , int, 0); > 3410 MODULE_PARM_DESC (poll_interval , *"Interval determines how frequent timer interrupt is generated by [(time_in_micro_secs * 100) / (2^10)]. Min is 0 and Max is 65535."*); > 3411 module_param (disable_msi , int, 0); > 3412 MODULE_PARM_DESC (disable_msi , *"Disable MSI interrupts by setting to 1."*); > 3413 module_param (disable_msix , int, 0); > 3414 MODULE_PARM_DESC (disable_msix , *"Disable MSIX interrupts by setting to 1."*); > 3415 > 3416 MODULE_AUTHOR (*"Manfred Spraul "*); > 3417 MODULE_DESCRIPTION (*"Reverse Engineered nForce ethernet driver"*); > 3418 MODULE_LICENSE (*"GPL"*); > > " > > I have long forgotten the settings I used, but this may help you find where > to look. My recollection is that I polled with > optimization_mode=1 > poll_interval=10000 > > Your guess is as good as mine what the units were. I just know I could > transfer 112 MB/s with it. > > Thank Goodness we have open source... ;-) > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > -------------- next part -------------- An HTML attachment was scrubbed... URL: From scott at hosef.org Wed Sep 17 19:16:52 2008 From: scott at hosef.org (R. Scott Belford) Date: Wed, 17 Sep 2008 09:16:52 -1000 Subject: [K12OSN] OT - Getting Ubuntu 8.04 to Authenticate from LDAP Server In-Reply-To: <48D0EA95.5080007@biochemfluidics.com> References: <48D0B70C.7010408@snarlnet.com> <48D0EA95.5080007@biochemfluidics.com> Message-ID: On Wed, Sep 17, 2008 at 1:31 AM, Rob Owens wrote: > Carl Keil wrote: > > Hey, > > > > Can someone tell me the procedure to get an Ubuntu 8.04 workstation to > > log in via LDAP? In what seem to be the most authoritative instructions > > I can find it says to fire up ./smbldap ldapclient and "answer a few > > questions". > > I think that's a reference to the smbldap-installer scripts, located > here: http://majen.net/smbldap/ If you are going to use Ubuntu, I would highly recommend using the supported Ubuntu package that was designed to solve this problem. You will find it far more maintainable and supportable. -Rob --scott -------------- next part -------------- An HTML attachment was scrubbed... URL: From jim.c.christiansen at gmail.com Thu Sep 18 16:56:37 2008 From: jim.c.christiansen at gmail.com (Jim Christiansen) Date: Thu, 18 Sep 2008 09:56:37 -0700 Subject: [K12OSN] Troublesome/Annoying Dialog for 500 students at logon... Message-ID: <8b88203f0809180956i2bf7fb9cjcfa37754fe7b900b@mail.gmail.com> I've just installed K12LTSP 5 onto our Library server and rsynced the homes back into place. Whenever any student logons on to a terminal they have to answer a dialogue box that says: Do you wish to make GDM_Failsafe.GNOME.desktop the default for future sessions? No matter how it is answered they always encounter this at logon... it won't go away! :-( As always... Thanks a bunch, Jim -------------- next part -------------- An HTML attachment was scrubbed... URL: From robark at gmail.com Thu Sep 18 18:28:10 2008 From: robark at gmail.com (Robert Arkiletian) Date: Thu, 18 Sep 2008 11:28:10 -0700 Subject: [K12OSN] server hardening (disable list) Message-ID: Some of my students (with previous Linux experience) discovered these programs mail write wall in addition they were attempting to guess passwords and even share passwords. su sudo I changed permissions on all of the above to only allow root or myself access. I teach command line so they need to have access to a shell terminal. But having students start a chatting frenzy or fill logs with mail is annoying. In addition if you have generic accounts like comp1, comp2, comp3 they can change the default password. So I had to disable passwd for the generic accounts. In addition I have disabled cron for everyone except root and myself. Disable atd. Also disabled nohup. In addtion I have a script that logs everyone off (kills all user processes) at the end of the school day. Also secured sshd. I was hoping others on the this list could contribute ideas/experiences of what should/could be disabled. -- Robert Arkiletian Eric Hamber Secondary, Vancouver, Canada Fl_TeacherTool http://www3.telus.net/public/robark/Fl_TeacherTool/ C++ GUI tutorial http://www3.telus.net/public/robark/ From rob.owens at biochemfluidics.com Thu Sep 18 19:05:00 2008 From: rob.owens at biochemfluidics.com (Rob Owens) Date: Thu, 18 Sep 2008 15:05:00 -0400 Subject: [K12OSN] server hardening (disable list) In-Reply-To: References: Message-ID: <48D2A65C.3080504@biochemfluidics.com> I think you should first give those kids extra credit for being resourceful, then give them extra credit every time they report a new "exploit" for you to fix. Turn it into a challenge for them and keep them on the white hat side of things. -Rob Robert Arkiletian wrote: > Some of my students (with previous Linux experience) discovered these programs > > mail > write > wall > > in addition they were attempting to guess passwords and even share passwords. > > su > sudo > > I changed permissions on all of the above to only allow root or myself access. > > I teach command line so they need to have access to a shell terminal. > But having students start a chatting frenzy or fill logs with mail is > annoying. > In addition if you have generic accounts like comp1, comp2, comp3 they > can change the default password. > So I had to disable > > passwd > > for the generic accounts. > > In addition I have disabled cron for everyone except root and myself. > Disable atd. Also disabled nohup. In addtion I have a script that logs > everyone off (kills all user processes) at the end of the school day. > Also secured sshd. > > I was hoping others on the this list could contribute > ideas/experiences of what should/could be disabled. > > > ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** From moon at smbis.com Thu Sep 18 19:29:24 2008 From: moon at smbis.com (Moon) Date: Thu, 18 Sep 2008 15:29:24 -0400 Subject: [K12OSN] server hardening (disable list) In-Reply-To: <48D2A65C.3080504@biochemfluidics.com> References: <48D2A65C.3080504@biochemfluidics.com> Message-ID: <10E657A815CD40DCBE6C5F764DA8AA7C@acerpc> Nothing wrong with encouraging students to learn how to hack if that was what was being taught, however if he is trying to teach them fundamentals of using the OS and they are playing games and/or hosing up the systems, impacting his ability to teach and other students to learn, then there should be swift and sever punishment. Set ground rules right up front that are firm and consistent. Half the problems with our educational system today is a serious lack of discipline. Heck, some schools are paying kids to learn. What a bunch of horse hockey. -----Original Message----- From: Rob Owens [mailto:rob.owens at biochemfluidics.com] Sent: Thursday, September 18, 2008 03:05 PM To: Support list for open source software in schools. Subject: Re: [K12OSN] server hardening (disable list) I think you should first give those kids extra credit for being resourceful, then give them extra credit every time they report a new "exploit" for you to fix. Turn it into a challenge for them and keep them on the white hat side of things. -Rob Robert Arkiletian wrote: > Some of my students (with previous Linux experience) discovered these programs > > mail > write > wall > > in addition they were attempting to guess passwords and even share passwords. > > su > sudo > > I changed permissions on all of the above to only allow root or myself access. > > I teach command line so they need to have access to a shell terminal. > But having students start a chatting frenzy or fill logs with mail is > annoying. > In addition if you have generic accounts like comp1, comp2, comp3 they > can change the default password. > So I had to disable > > passwd > > for the generic accounts. > > In addition I have disabled cron for everyone except root and myself. > Disable atd. Also disabled nohup. In addtion I have a script that logs > everyone off (kills all user processes) at the end of the school day. > Also secured sshd. > > I was hoping others on the this list could contribute > ideas/experiences of what should/could be disabled. > > > ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** _______________________________________________ K12OSN mailing list K12OSN at redhat.com https://www.redhat.com/mailman/listinfo/k12osn For more info see From krauses at deerpark.wednet.edu Thu Sep 18 20:17:10 2008 From: krauses at deerpark.wednet.edu (Steve Krause) Date: Thu, 18 Sep 2008 13:17:10 -0700 Subject: [K12OSN] Fedora 9, LTSP 5, and KDE Message-ID: <20080918T131710Z_424200110000@deerpark.wednet.edu> With the help of Sean Harbour, I have users able to login to the thin clients using their Active Directory accounts and accessing their home directories stored on a Windows server. Thank you very much Sean. We are trying to get the Display to KDE so we can use the Kiosk Admin Tool to manage the thin client desktops. We have been doing it with pretty good success using FC6/ltsp4.2. Does anyone out there know how to configure the system to only allow thin client logins to get KDE? I have tried setting up /etc/sysconfig/desktop and editting the lts.conf to launch SCREEN_07=xdmcp. No luck there. I have tried going to the /usr/share/xsessions/ and leaving only kde.desktop. Still no luck. I understand the thin clients use ldm to login and launch the desktop. I can find very little on how to configure it. Thanks in advance. Steve Krause, CNE Network Manager Deer Park School District #414 Deer Park, WA (509) 464-5567 krauses at deerpark.wednet.edu -------------- next part -------------- An HTML attachment was scrubbed... URL: From nelsda at yahoo.com Fri Sep 19 05:57:28 2008 From: nelsda at yahoo.com (David D. Nelson) Date: Thu, 18 Sep 2008 22:57:28 -0700 (PDT) Subject: [K12OSN] K12LTSP 5 EL: no Web access for non-terminal clients Message-ID: <527680.55610.qm@web35202.mail.mud.yahoo.com> My server died and I had to do a new install so I did a standard install K12LTSP 5 EL. After applying updates terminals would boot and work fine but I can't seem to get any access from other workstations on the network. I have eth0 on the local net and eth1 to the internet. I tried the following: chkconfig nat on service nat restart chkconfig iptables-k12ltsp on service iptables-k12ltsp restart chkconfig transparent-proxying on service transparent-proxying restart but I still don't have internet access from the workstations. I'm able to ping by domain name so I assume that DNS is set up correctly but I get an invalid request error from squid or a time out if squid isn't running. Any ideas? TIA, David D. Nelson nelsda at yahoo.com http://www.evalbum.com/1328 From mrjohnlucas at gmail.com Fri Sep 19 10:42:24 2008 From: mrjohnlucas at gmail.com (John Lucas) Date: Fri, 19 Sep 2008 06:42:24 -0400 Subject: [K12OSN] Troublesome/Annoying Dialog for 500 students at logon... In-Reply-To: <8b88203f0809180956i2bf7fb9cjcfa37754fe7b900b@mail.gmail.com> References: <8b88203f0809180956i2bf7fb9cjcfa37754fe7b900b@mail.gmail.com> Message-ID: <48D38210.90504@gmail.com> Jim Christiansen wrote: > I've just installed K12LTSP 5 onto our Library server and rsynced the > homes back into place. > > Whenever any student logons on to a terminal they have to answer a > dialogue box that says: > > Do you wish to make GDM_Failsafe.GNOME.desktop the default for future > sessions? > > No matter how it is answered they always encounter this at logon... it > won't go away! :-( > > As always... Thanks a bunch, > You state that you "rsynced the homes back into place"; are the home directories ownership and permissions correct (does the user own their own home directory with read-write-execute permissions) after this process? It sounds like the choices at login can't be saved because the user may not be able to write the info to their home directory. Just a guess. -- "History doesn't repeat itself; at best it rhymes." - Mark Twain | John Lucas MrJohnLucas at gmail.com | | St. Thomas, VI 00802 http://mrjohnlucas.googlepages.com/ | | 18.3?N, 65?W AST (UTC-4) | From meelis at nlib.ee Fri Sep 19 10:54:13 2008 From: meelis at nlib.ee (Meelis Mihhailov) Date: Fri, 19 Sep 2008 13:54:13 +0300 Subject: {SPAM!} [K12OSN] K12LTSP 5 EL: no Web access for non-terminal clients References: <527680.55610.qm@web35202.mail.mud.yahoo.com> Message-ID: <2882F1FB5D754F218D339810FB43A374@melka> Have you set up ip-forward on your server? Terminals can access internet over server because they so to speak "live" in the server. Regular workstations however require ipforward in order to access internet :) in FC this command can help : echo 1 > /proc/sys/net/ipv4/ip_forward Meelis ----- Original Message ----- From: "David D. Nelson" To: "k12osn" Sent: Friday, September 19, 2008 8:57 AM Subject: {SPAM!} [K12OSN] K12LTSP 5 EL: no Web access for non-terminal clients > My server died and I had to do a new install so I did a standard install > K12LTSP 5 EL. After applying updates terminals would boot and work fine > but I can't seem to get any access from other workstations on the network. > I have eth0 on the local net and eth1 to the internet. I tried the > following: > > chkconfig nat on > service nat restart > > chkconfig iptables-k12ltsp on > service iptables-k12ltsp restart > > chkconfig transparent-proxying on > service transparent-proxying restart > > but I still don't have internet access from the workstations. I'm able to > ping by domain name so I assume that DNS is set up correctly but I get an > invalid request error from squid or a time out if squid isn't running. > > Any ideas? > > TIA, > > David D. Nelson > nelsda at yahoo.com > > http://www.evalbum.com/1328 > > > > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > From rob.owens at biochemfluidics.com Fri Sep 19 12:00:51 2008 From: rob.owens at biochemfluidics.com (Rob Owens) Date: Fri, 19 Sep 2008 08:00:51 -0400 Subject: [K12OSN] K12LTSP 5 EL: no Web access for non-terminal clients In-Reply-To: <527680.55610.qm@web35202.mail.mud.yahoo.com> References: <527680.55610.qm@web35202.mail.mud.yahoo.com> Message-ID: <48D39473.7050608@biochemfluidics.com> Your DHCP server (which I assume is your K12LTSP server) needs to tell clients where the gateway is. dhcpd.conf should have a line like: option routers 10.112.0.123; (obviously, don't use my example address) Your thin clients have web access because they're nat'ing to the K12LTSP server, and the K12LTSP server apparently knows where its gateway (router) is. The other clients, though, need to be told where their gateway (router) is. -Rob David D. Nelson wrote: > My server died and I had to do a new install so I did a standard install K12LTSP 5 EL. After applying updates terminals would boot and work fine but I can't seem to get any access from other workstations on the network. I have eth0 on the local net and eth1 to the internet. I tried the following: > > chkconfig nat on > service nat restart > > chkconfig iptables-k12ltsp on > service iptables-k12ltsp restart > > chkconfig transparent-proxying on > service transparent-proxying restart > > but I still don't have internet access from the workstations. I'm able to ping by domain name so I assume that DNS is set up correctly but I get an invalid request error from squid or a time out if squid isn't running. > > Any ideas? > > TIA, > > David D. Nelson > nelsda at yahoo.com > > http://www.evalbum.com/1328 > > > > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** From krauses at deerpark.wednet.edu Fri Sep 19 14:50:11 2008 From: krauses at deerpark.wednet.edu (Steve Krause) Date: Fri, 19 Sep 2008 07:50:11 -0700 Subject: [K12OSN] How to modify ldm session menu Message-ID: <20080919T075011Z_424200110000@deerpark.wednet.edu> I installed FC9LTSP LiveUSB. When I login from a client, I get only Default and Failsafe xterm as options. It does not show Gnome but that is what Default brings up. After the fact, I installed KDE, but that does not show up as an option. Any suggestions on how to get StartKDE in the menu. Ideally, I would like to add KDE and remove Gnome as an option. Thanks. Steve Krause, CNE Network Manager Deer Park School District #414 Deer Park, WA (509) 464-5567 krauses at deerpark.wednet.edu -------------- next part -------------- An HTML attachment was scrubbed... URL: From krauses at deerpark.wednet.edu Fri Sep 19 14:51:16 2008 From: krauses at deerpark.wednet.edu (Steve Krause) Date: Fri, 19 Sep 2008 07:51:16 -0700 Subject: [K12OSN] How to modify ldm session menu Message-ID: <20080919T075116Z_424200110000@deerpark.wednet.edu> I installed FC9LTSP LiveUSB. When I login from a client, I get only Default and Failsafe xterm as options. It does not show Gnome but that is what Default brings up. After the fact, I installed KDE, but that does not show up as an option. Any suggestions on how to get StartKDE in the menu. Ideally, I would like to add KDE and remove Gnome as an option. I can start the xterm and run startkde. That will bring up KDE. Thanks. Steve Krause, CNE Network Manager Deer Park School District #414 Deer Park, WA (509) 464-5567 krauses at deerpark.wednet.edu -------------- next part -------------- An HTML attachment was scrubbed... URL: From dyoung at mesd.k12.or.us Fri Sep 19 15:10:21 2008 From: dyoung at mesd.k12.or.us (Dan Young) Date: Fri, 19 Sep 2008 08:10:21 -0700 Subject: [K12OSN] How to modify ldm session menu In-Reply-To: <20080919T075011Z_424200110000@deerpark.wednet.edu> References: <20080919T075011Z_424200110000@deerpark.wednet.edu> Message-ID: <994441ae0809190810i6acaf868mdc1233f70618f183@mail.gmail.com> 2008/9/19 Steve Krause : > I installed FC9LTSP LiveUSB. When I login from a client, I get only Default > and Failsafe xterm as options. It does not show Gnome but that is what > Default brings up. After the fact, I installed KDE, but that does not show > up as an option. Any suggestions on how to get StartKDE in the menu. > Ideally, I would like to add KDE and remove Gnome as an option. Thanks. Can you try: yum install /usr/share/xsessions/kde.desktop If you're pleased with the results, you can remove the GNOME session with: yum remove gnome-session -- Dan Young Multnomah ESD - Technology Services 503-257-1562 From robark at gmail.com Fri Sep 19 15:28:03 2008 From: robark at gmail.com (Robert Arkiletian) Date: Fri, 19 Sep 2008 08:28:03 -0700 Subject: [K12OSN] Troublesome/Annoying Dialog for 500 students at logon... In-Reply-To: <48D38210.90504@gmail.com> References: <8b88203f0809180956i2bf7fb9cjcfa37754fe7b900b@mail.gmail.com> <48D38210.90504@gmail.com> Message-ID: On Fri, Sep 19, 2008 at 3:42 AM, John Lucas wrote: > You state that you "rsynced the homes back into place"; are the home > directories ownership and permissions correct (does the user own their own > home directory with read-write-execute permissions) after this process? It > sounds like the choices at login can't be saved because the user may not be > able to write the info to their home directory. Just a guess. yes this sounds likely. remember usernames don't matter it's UID that matter. -- Robert Arkiletian Eric Hamber Secondary, Vancouver, Canada Fl_TeacherTool http://www3.telus.net/public/robark/Fl_TeacherTool/ C++ GUI tutorial http://www3.telus.net/public/robark/ From monteslu at cox.net Fri Sep 19 15:50:06 2008 From: monteslu at cox.net (Luis Montes) Date: Fri, 19 Sep 2008 08:50:06 -0700 Subject: [K12OSN] devon IT 6020 ntavo Message-ID: <48D3CA2E.9070107@cox.net> I have 70 thin clients mostly disklessworkstation.com T150s, but a good 25 or so ntavo 6020s. Recently the 6020s decided to that they could get an IP address from the dhcp server but then timeout when trying to contact the tftp server. All of the T150s are booting fine. This is on a fully updated edubuntu 8.04 Any ideas? Thanks, Luis From jmakoid at devonit.com Fri Sep 19 16:07:54 2008 From: jmakoid at devonit.com (Joe Makoid) Date: Fri, 19 Sep 2008 12:07:54 -0400 Subject: [K12OSN] devon IT 6020 ntavo In-Reply-To: <48D3CA2E.9070107@cox.net> References: <48D3CA2E.9070107@cox.net> Message-ID: Luis, I am the President of Devon IT, can we help you? Joe Makoid President 215- 479-6152 (direct) Devon Technologies "Leader in Alternative Desktop Technologies" Executive Assistant, Rebecca Blair rblair at devonit.com -----Original Message----- From: k12osn-bounces at redhat.com [mailto:k12osn-bounces at redhat.com] On Behalf Of Luis Montes Sent: Friday, September 19, 2008 11:50 AM To: Edubuntu Users Group; Support list for opensource software in schools. Subject: [K12OSN] devon IT 6020 ntavo I have 70 thin clients mostly disklessworkstation.com T150s, but a good 25 or so ntavo 6020s. Recently the 6020s decided to that they could get an IP address from the dhcp server but then timeout when trying to contact the tftp server. All of the T150s are booting fine. This is on a fully updated edubuntu 8.04 Any ideas? Thanks, Luis _______________________________________________ K12OSN mailing list K12OSN at redhat.com https://www.redhat.com/mailman/listinfo/k12osn For more info see From jim.c.christiansen at gmail.com Fri Sep 19 16:20:05 2008 From: jim.c.christiansen at gmail.com (Jim Christiansen) Date: Fri, 19 Sep 2008 09:20:05 -0700 Subject: [K12OSN] Troublesome/Annoying Dialog for 500 students at logon... Message-ID: <8b88203f0809190920o9d59f4sdbb3049664c0555e@mail.gmail.com> Yes, I thought so too,,, Everyone can log on and do all of their work, though. I rebuilt the group shadow and password files in etc- no userids messed up I'm pretty sure then synced the home back rsync -a -p -g /drivehdb3/home / then ran a script : d in * ; do chown -Rv $d:$d $d ; done to chown all of the folders back to their own perms. I'll re-run this after school before I go home for the weekend. Thanks for any more ideas. Jim -------------- next part -------------- An HTML attachment was scrubbed... URL: From krauses at deerpark.wednet.edu Fri Sep 19 17:13:41 2008 From: krauses at deerpark.wednet.edu (Steve Krause) Date: Fri, 19 Sep 2008 10:13:41 -0700 Subject: [K12OSN] How to modify ldm session menu Message-ID: <20080919T101341Z_424200110000@deerpark.wednet.edu> >2008/9/19 Steve Krause : >> I installed FC9LTSP LiveUSB. When I login from a client, I get only Default >> and Failsafe xterm as options. It does not show Gnome but that is what >> Default brings up. After the fact, I installed KDE, but that does not show >> up as an option. Any suggestions on how to get StartKDE in the menu. >> Ideally, I would like to add KDE and remove Gnome as an option. Thanks. >Can you try: >yum install /usr/share/xsessions/kde.desktop >If you're pleased with the results, you can remove the GNOME session with: >yum remove gnome-session > >-- >Dan Young >Multnomah ESD - Technology Services >503-257-1562 I tried the install. It appeared to download 5.5M but then responded there was nothing to do. KDE 4 is installed and updated. I still only have the two options in the session menu, but can manually start KDE if I select Failsafe Xterm. Steve Krause, CNE Network Manager Deer Park School District #414 Deer Park, WA (509) 464-5567 krauses at deerpark.wednet.edu -------------- next part -------------- An HTML attachment was scrubbed... URL: From dyoung at mesd.k12.or.us Fri Sep 19 17:16:19 2008 From: dyoung at mesd.k12.or.us (Dan Young) Date: Fri, 19 Sep 2008 10:16:19 -0700 Subject: [K12OSN] How to modify ldm session menu In-Reply-To: <20080919T101341Z_424200110000@deerpark.wednet.edu> References: <20080919T101341Z_424200110000@deerpark.wednet.edu> Message-ID: <994441ae0809191016k5f9aebcid46029403a8d4732@mail.gmail.com> 2008/9/19 Steve Krause : >>2008/9/19 Steve Krause : >>> I installed FC9LTSP LiveUSB. When I login from a client, I get only >>> Default >>> and Failsafe xterm as options. It does not show Gnome but that is what >>> Default brings up. After the fact, I installed KDE, but that does not >>> show >>> up as an option. Any suggestions on how to get StartKDE in the menu. >>> Ideally, I would like to add KDE and remove Gnome as an option. Thanks. > >>Can you try: >>yum install /usr/share/xsessions/kde.desktop > >>If you're pleased with the results, you can remove the GNOME session with: >>yum remove gnome-session >> >>-- >>Dan Young >>Multnomah ESD - Technology Services >>503-257-1562 > I tried the install. It appeared to download 5.5M but then responded there > was nothing to do. KDE 4 is installed and updated. I still only have the > two options in the session menu, but can manually start KDE if I select > Failsafe Xterm. Does this return anything? rpm -q kdebase-workspace -- Dan Young Multnomah ESD - Technology Services 503-257-1562 From krauses at deerpark.wednet.edu Fri Sep 19 17:33:51 2008 From: krauses at deerpark.wednet.edu (Steve Krause) Date: Fri, 19 Sep 2008 10:33:51 -0700 Subject: [K12OSN] How to modify ldm session menu Message-ID: <20080919T103351Z_424200110000@deerpark.wednet.edu> rpm -q kdebase-workspace returns: kdebase-workspace-4.1.0-8.fc9.i386 Steve Krause, CNE Network Manager Deer Park School District #414 Deer Park, WA (509) 464-5567 krauses at deerpark.wednet.edu -------------- next part -------------- An HTML attachment was scrubbed... URL: From krauses at deerpark.wednet.edu Fri Sep 19 17:44:28 2008 From: krauses at deerpark.wednet.edu (Steve Krause) Date: Fri, 19 Sep 2008 10:44:28 -0700 Subject: [K12OSN] How to modify ldm session menu Message-ID: <20080919T104428Z_424200110000@deerpark.wednet.edu> Dan, Does LTSP 5 execute the chroot on the client and use the chroot of /opt/ltsp/i386 (or whichever arch is appropriate) for the file system? In that chroot the /etc/sysconfig/xsession/desktop file has DISPLAYMANAGER=/usr/sbin/ltsp-client-launch. When I put in DISPLAY=KDE, it would not allow clients to login. It kept dropping back to login again. Steve Krause, CNE Network Manager Deer Park School District #414 Deer Park, WA (509) 464-5567 krauses at deerpark.wednet.edu -------------- next part -------------- An HTML attachment was scrubbed... URL: From mrjohnlucas at gmail.com Fri Sep 19 19:00:04 2008 From: mrjohnlucas at gmail.com (John Lucas) Date: Fri, 19 Sep 2008 15:00:04 -0400 Subject: [K12OSN] Troublesome/Annoying Dialog for 500 students at logon... In-Reply-To: <8b88203f0809190920o9d59f4sdbb3049664c0555e@mail.gmail.com> References: <8b88203f0809190920o9d59f4sdbb3049664c0555e@mail.gmail.com> Message-ID: <48D3F6B4.9050009@gmail.com> Jim Christiansen wrote: > Yes, I thought so too,,, Everyone can log on and do all of their work, > though. > > I rebuilt the group shadow and password files in etc- no userids messed > up I'm pretty sure > > then synced the home back > > rsync -a -p -g /drivehdb3/home / > > then ran a script : > > d in * ; do chown -Rv $d:$d $d ; done > > to chown all of the folders back to their own perms. > > I'll re-run this after school before I go home for the weekend. > > > Thanks for any more ideas. > I wouldn't hurt to check first to see if /home/"userid" ownership matches "userid" and that permissions look something like "drwx------". There may be no need to re-run the script. Your script sets ownership, but not permissions. If perms look something like "dr-x------" or "dr-xr-xr-x" then they could read but not write to their directories. Check subdirectories too; depending on your login manager they could be the problem (i.e. ~/.dmrc). -- "History doesn't repeat itself; at best it rhymes." - Mark Twain | John Lucas MrJohnLucas at gmail.com | | St. Thomas, VI 00802 http://mrjohnlucas.googlepages.com/ | | 18.3?N, 65?W AST (UTC-4) | From toddobryan at gmail.com Fri Sep 19 20:52:10 2008 From: toddobryan at gmail.com (Todd O'Bryan) Date: Fri, 19 Sep 2008 16:52:10 -0400 Subject: [K12OSN] devon IT 6020 ntavo In-Reply-To: <48D3CA2E.9070107@cox.net> References: <48D3CA2E.9070107@cox.net> Message-ID: <904774730809191352i5567864brc95dfa0a4781b4a8@mail.gmail.com> I think this happens occasionally with me, too. The client starts to boot and then stalls. Restarting solves the problem, so I think it's just a hiccup, but I haven't investigated to see what exactly is happening or why. Todd On Fri, Sep 19, 2008 at 11:50 AM, Luis Montes wrote: > I have 70 thin clients mostly disklessworkstation.com T150s, but a good 25 > or so ntavo 6020s. > Recently the 6020s decided to that they could get an IP address from the > dhcp server but then timeout when trying to contact the tftp server. > > All of the T150s are booting fine. This is on a fully updated edubuntu > 8.04 > > Any ideas? > > Thanks, > > Luis > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > -------------- next part -------------- An HTML attachment was scrubbed... URL: From nelsda at yahoo.com Sat Sep 20 00:20:28 2008 From: nelsda at yahoo.com (David D. Nelson) Date: Fri, 19 Sep 2008 17:20:28 -0700 (PDT) Subject: [K12OSN] K12LTSP 5 EL: no Web access for non-terminal clients In-Reply-To: <48D39473.7050608@biochemfluidics.com> Message-ID: <290373.16271.qm@web35208.mail.mud.yahoo.com> Sorry Rob. The first reply only went to you not the list. Here is another try. Ok, I checked /proc/sys/net/ipv4/ip_forward and it has a 1 in it. I looked at /etc/dhcpd.conf and all it has in it is: # # DHCP Server Configuration file. # see /usr/share/doc/dhcp*/dhcpd.conf.sample # When I added the option routers x.x.x.x line in it and I did a service dhcpd restart, dhcpd failed to start. I reverted to the original dhcpd.conf file and tried again and still got a failure on start. I see that there is a dhcpd-k12ltsp.conf file. Is this the one that is actually used? It seems like I remember older versions of K12LTSP had a line in dhcpd.conf pointing to dhcpd-k12ltsp.conf. Is this what is supposed to happen? Maybe my looking around with Webmin messed things up. I didn't see any error messages in /var/log/messages so I'm at a loss here. I'd rather not have to start over again. David D. Nelson nelsda at yahoo.com http://www.evalbum.com/1328 --- On Fri, 9/19/08, Rob Owens wrote: > From: Rob Owens > Subject: Re: [K12OSN] K12LTSP 5 EL: no Web access for non-terminal clients > To: nelsda at yahoo.com, "Support list for open source software in schools." > Date: Friday, September 19, 2008, 5:00 AM > Your DHCP server (which I assume is your K12LTSP server) > needs to tell > clients where the gateway is. dhcpd.conf should have a > line like: > > option routers 10.112.0.123; (obviously, don't use my > example address) > > Your thin clients have web access because they're > nat'ing to the K12LTSP > server, and the K12LTSP server apparently knows where its > gateway > (router) is. The other clients, though, need to be told > where their > gateway (router) is. > > -Rob > > David D. Nelson wrote: > > My server died and I had to do a new install so I did > a standard install K12LTSP 5 EL. After applying updates > terminals would boot and work fine but I can't seem to > get any access from other workstations on the network. I > have eth0 on the local net and eth1 to the internet. I tried > the following: > > > > chkconfig nat on > > service nat restart > > > > chkconfig iptables-k12ltsp on > > service iptables-k12ltsp restart > > > > chkconfig transparent-proxying on > > service transparent-proxying restart > > > > but I still don't have internet access from the > workstations. I'm able to ping by domain name so I > assume that DNS is set up correctly but I get an invalid > request error from squid or a time out if squid isn't > running. > > > > Any ideas? > > > > TIA, > > > > David D. Nelson > > nelsda at yahoo.com > > > > http://www.evalbum.com/1328 > > > > > > > > > > _______________________________________________ > > K12OSN mailing list > > K12OSN at redhat.com > > https://www.redhat.com/mailman/listinfo/k12osn > > For more info see > ******************************************************** > > The information transmitted is intended only for the person > or entity to > which it is addressed and may contain confidential and/or > privileged > material. If you are not the addressee, any disclosure, > reproduction, > copying, distribution, or other dissemination or use of > this transmission in > error please notify the sender immediately and then delete > this e-mail. > E-mail transmission cannot be guaranteed to be secure or > error free as > information could be intercepted, corrupted lost, > destroyed, arrive late or > incomplete, or contain viruses. > The sender therefore does not accept liability for any > errors or omissions > in the contents of this message which arise as a result of > e-mail > transmission. If verification is required please request a > hard copy > version. > > ******************************************************** From carl at snarlnet.com Sat Sep 20 00:40:58 2008 From: carl at snarlnet.com (Carl Keil) Date: Fri, 19 Sep 2008 17:40:58 -0700 Subject: [K12OSN] OT - Can't authenticate Ubuntu 8.04 to LDAP server Message-ID: <48D4469A.20504@snarlnet.com> Hey Folks, I've been trying for weeks to set up an LDAP server. I've got the feeling that they LDAP server is working, but I'm not sure. I am sure that I can't get my Ubuntu 8 test client to authenticate from it. Is there anything like a troubleshooting procedure for this? Is there a way to test my connection to the server from the client short of rebooting and trying to log in? (Make sure I'm not having firewall, dns, etc. issues?) Also, I kindof think my test client is fairly hosed from all the conf file editing I've done. I've tried uninstalling ldap-auth-config and reinstalling it, but it doesn't ask me questions when I reinstall. Is there a procedure for "resetting" all the files that pertain to logging in (the stuff in pam.d, etc.), so that I can try reconfiguring for LDAP authentication from scratch again? Right now my client takes forever to log in (locally), so testing is a real pain. Any help would be appreciated. Thanks, ck From monteslu at cox.net Sat Sep 20 01:46:10 2008 From: monteslu at cox.net (monteslu at cox.net) Date: Fri, 19 Sep 2008 21:46:10 -0400 Subject: [K12OSN] Re: devon IT 6020 ntavo - SOLVED Message-ID: <20080919214610.JLLVH.433933.imail@fed1rmwml29> I took this off list with Devon IT and they very quickly solved the issue for me. I'm not sure if something changed in edubuntu's LTSP implementation, but a simple BIOS update to the 6020s and I'm back up and running. Luis ---- Luis Montes wrote: > I have 70 thin clients mostly disklessworkstation.com T150s, but a good > 25 or so ntavo 6020s. > Recently the 6020s decided to that they could get an IP address from the > dhcp server but then timeout when trying to contact the tftp server. > > All of the T150s are booting fine. This is on a fully updated edubuntu > 8.04 > > Any ideas? > > Thanks, > > Luis > > > -- > edubuntu-users mailing list > edubuntu-users at lists.ubuntu.com > Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/edubuntu-users From toddobryan at gmail.com Sat Sep 20 02:46:25 2008 From: toddobryan at gmail.com (Todd O'Bryan) Date: Fri, 19 Sep 2008 22:46:25 -0400 Subject: [K12OSN] OT - Can't authenticate Ubuntu 8.04 to LDAP server In-Reply-To: <48D4469A.20504@snarlnet.com> References: <48D4469A.20504@snarlnet.com> Message-ID: <904774730809191946y6599528fhb00176f3785963e7@mail.gmail.com> You should be able to run ldapsearch from the client by specifying the server. I think the command is ldapsearch -H hosturl -D bindname -W but I don't have access to an LDAP server to check that at the moment. On Fri, Sep 19, 2008 at 8:40 PM, Carl Keil wrote: > Hey Folks, > > I've been trying for weeks to set up an LDAP server. I've got the feeling > that they LDAP server is working, but I'm not sure. I am sure that I can't > get my Ubuntu 8 test client to authenticate from it. Is there anything like > a troubleshooting procedure for this? Is there a way to test my connection > to the server from the client short of rebooting and trying to log in? > (Make sure I'm not having firewall, dns, etc. issues?) > Also, I kindof think my test client is fairly hosed from all the conf file > editing I've done. I've tried uninstalling ldap-auth-config and > reinstalling it, but it doesn't ask me questions when I reinstall. Is there > a procedure for "resetting" all the files that pertain to logging in (the > stuff in pam.d, etc.), so that I can try reconfiguring for LDAP > authentication from scratch again? Right now my client takes forever to log > in (locally), so testing is a real pain. > Any help would be appreciated. > > Thanks, > > ck > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > -------------- next part -------------- An HTML attachment was scrubbed... URL: From peter at scheie.homedns.org Sat Sep 20 11:41:44 2008 From: peter at scheie.homedns.org (Peter Scheie) Date: Sat, 20 Sep 2008 06:41:44 -0500 Subject: [K12OSN] K12LTSP 5 EL: no Web access for non-terminal clients In-Reply-To: <290373.16271.qm@web35208.mail.mud.yahoo.com> References: <290373.16271.qm@web35208.mail.mud.yahoo.com> Message-ID: <48D4E178.6010503@scheie.homedns.org> Yes, the dhcpd config file you want to make any modifications to is dhcpd-k12ltsp.conf, not /etc/dhcpd.conf. Likewise, I recall a few years ago someone on the list observing that if one is going to use Webmin, one should only use Webmin, as switching back and forth between that and manually editing files caused problems. Peter David D. Nelson wrote: > Sorry Rob. The first reply only went to you not the list. Here is another try. > > Ok, I checked /proc/sys/net/ipv4/ip_forward and it has a 1 in it. I looked at /etc/dhcpd.conf and all it has in it is: > > # > # DHCP Server Configuration file. > # see /usr/share/doc/dhcp*/dhcpd.conf.sample > # > > When I added the option routers x.x.x.x line in it and I did a service dhcpd restart, dhcpd failed to start. I reverted to the original dhcpd.conf file and tried again and still got a failure on start. I see that there is a dhcpd-k12ltsp.conf file. Is this the one that is actually used? It seems like I remember older versions of K12LTSP had a line in dhcpd.conf pointing to dhcpd-k12ltsp.conf. Is this what is supposed to happen? > > Maybe my looking around with Webmin messed things up. I didn't see any error messages in /var/log/messages so I'm at a loss here. I'd rather not have to start over again. > > > David D. Nelson > nelsda at yahoo.com > > http://www.evalbum.com/1328 > > > --- On Fri, 9/19/08, Rob Owens wrote: > >> From: Rob Owens >> Subject: Re: [K12OSN] K12LTSP 5 EL: no Web access for non-terminal clients >> To: nelsda at yahoo.com, "Support list for open source software in schools." >> Date: Friday, September 19, 2008, 5:00 AM >> Your DHCP server (which I assume is your K12LTSP server) >> needs to tell >> clients where the gateway is. dhcpd.conf should have a >> line like: >> >> option routers 10.112.0.123; (obviously, don't use my >> example address) >> >> Your thin clients have web access because they're >> nat'ing to the K12LTSP >> server, and the K12LTSP server apparently knows where its >> gateway >> (router) is. The other clients, though, need to be told >> where their >> gateway (router) is. >> >> -Rob >> >> David D. Nelson wrote: >>> My server died and I had to do a new install so I did >> a standard install K12LTSP 5 EL. After applying updates >> terminals would boot and work fine but I can't seem to >> get any access from other workstations on the network. I >> have eth0 on the local net and eth1 to the internet. I tried >> the following: >>> chkconfig nat on >>> service nat restart >>> >>> chkconfig iptables-k12ltsp on >>> service iptables-k12ltsp restart >>> >>> chkconfig transparent-proxying on >>> service transparent-proxying restart >>> >>> but I still don't have internet access from the >> workstations. I'm able to ping by domain name so I >> assume that DNS is set up correctly but I get an invalid >> request error from squid or a time out if squid isn't >> running. >>> Any ideas? >>> >>> TIA, >>> >>> David D. Nelson >>> nelsda at yahoo.com >>> >>> http://www.evalbum.com/1328 >>> >>> >>> >>> >>> _______________________________________________ >>> K12OSN mailing list >>> K12OSN at redhat.com >>> https://www.redhat.com/mailman/listinfo/k12osn >>> For more info see >> ******************************************************** >> >> The information transmitted is intended only for the person >> or entity to >> which it is addressed and may contain confidential and/or >> privileged >> material. If you are not the addressee, any disclosure, >> reproduction, >> copying, distribution, or other dissemination or use of >> this transmission in >> error please notify the sender immediately and then delete >> this e-mail. >> E-mail transmission cannot be guaranteed to be secure or >> error free as >> information could be intercepted, corrupted lost, >> destroyed, arrive late or >> incomplete, or contain viruses. >> The sender therefore does not accept liability for any >> errors or omissions >> in the contents of this message which arise as a result of >> e-mail >> transmission. If verification is required please request a >> hard copy >> version. >> >> ******************************************************** > > > > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > From carl at snarlnet.com Sat Sep 20 19:32:00 2008 From: carl at snarlnet.com (Carl Keil) Date: Sat, 20 Sep 2008 12:32:00 -0700 Subject: [K12OSN] OT - Can't authenticate Ubuntu 8.04 to LDAP Message-ID: <48D54FB0.9080300@snarlnet.com> Thanks for the tip Todd. I'll try that when I go in on Monday. Do you know any way to "wipe the LDAP login slate clean" on the client? I've edited a bunch of conf files. When I simply comment out the ldap lines that I've added then I can't log in at all (except as root/recovery) to uncomment them out again. Then, I can log in again, but the login process is super slow (minutes). It got slow when I first edited those files. It's only allowing local logins (accounts created on the client), but it feels like it's trying to do an LDAP thing too and I have to wait for some sort of timeout from LDAP and maybe from the /home export before the computer gets going. I was sloppy and in a hurry when I first edited those files. I should have made backups and kept a log of what I was doing, but I didn't. Is there any way to recreate the default conf files for pam and libnss and all that stuff? I'm getting the feeling I need to reinstall Ubuntu on that box and really start over. It's a drag, because I did a bunch of other configuring on that box to make it my workstation (dual monitors, etc., etc.). Thanks, ck > You should be able to run ldapsearch from the client by specifying the > server. I think the command is > > ldapsearch -H hosturl -D bindname -W > > but I don't have access to an LDAP server to check that at the moment. > > On Fri, Sep 19, 2008 at 8:40 PM, Carl Keil wrote: > > >> > Hey Folks, >> > >> > I've been trying for weeks to set up an LDAP server. I've got the feeling >> > that they LDAP server is working, but I'm not sure. I am sure that I can't >> > get my Ubuntu 8 test client to authenticate from it. Is there anything like >> > a troubleshooting procedure for this? Is there a way to test my connection >> > to the server from the client short of rebooting and trying to log in? >> > (Make sure I'm not having firewall, dns, etc. issues?) >> > Also, I kindof think my test client is fairly hosed from all the conf file >> > editing I've done. I've tried uninstalling ldap-auth-config and >> > reinstalling it, but it doesn't ask me questions when I reinstall. Is there >> > a procedure for "resetting" all the files that pertain to logging in (the >> > stuff in pam.d, etc.), so that I can try reconfiguring for LDAP >> > authentication from scratch again? Right now my client takes forever to log >> > in (locally), so testing is a real pain. >> > Any help would be appreciated. >> > >> > Thanks, >> > >> > ck From robark at gmail.com Sun Sep 21 04:31:25 2008 From: robark at gmail.com (Robert Arkiletian) Date: Sat, 20 Sep 2008 21:31:25 -0700 Subject: [K12OSN] Need help transfering EL5 from desktop to laptop Message-ID: created 2 partitions on laptop (/ and swap) formatted them. mounted both source and target (under /mnt on each machine) rsync -a / from desktop -> laptop (Note: OS on desktop is on sdb5. On laptop it's going to sda1) Now I need to put grub on mbr of laptop boot: linux rescue chroot /mnt/sysimage Here is my problem grub-install /dev/sda The file /boot/grub/stage1 not read correctly. Can anyone determine why I'm getting the above error? I also tried cp -a /usr/share/grub/i386-redhat/* /boot/grub no joy Here is all important info (gathered from linux rescue chroot /mnt/sysimage): -------------------------- /boot/grub/device.map (fd0) /dev/fd0 (hd0) /dev/sda ------------------------------- /etc/fstab /dev/sda1 / ext3 defaults 1 1 devpts /dev/pts devpts gid=5,mode=620 0 0 tmpfs /dev/shm tmpfs defaults 0 0 proc /proc proc defaults 0 0 sysfs /sys sysfs defaults 0 0 /dev/sda2 swap swap defaults 0 0 --------------------------------------- /etc/mtab /dev/sda1 / ext3 rw,defaults 0 0 proc /proc proc rw,defaults 0 0 sysfs /sys sysfs rw,defaults 0 0 /dev/sysfs /sys sysfs rw,defaults 0 0 ----------------------- fdisk -l Disk /dev/sda: 80.0 GB, 80026361856 bytes 255 heads, 63 sectors/track, 9729 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sda1 * 1 9500 76308718+ 83 Linux /dev/sda2 9501 9729 1839442+ 82 Linux swap / Solaris --------------------------- /boot/grub/grub.conf # grub.conf generated by anaconda # # Note that you do not have to rerun grub after making changes to this file # NOTICE: You do not have a /boot partition. This means that # all kernel and initrd paths are relative to /, eg. # root (hd0,0) # kernel /boot/vmlinuz-version ro root=/dev/md0 # initrd /boot/initrd-version.img #boot=/dev/sda1 default=0 timeout=10 splashimage=(hd0,0)/boot/grub/splash.xpm.gz #hiddenmenu title CentOS (2.6.18-92.1.10.el5) root (hd0,0) kernel /boot/vmlinuz-2.6.18-92.1.10.el5 ro root=/dev/sda1 rhgb quiet initrd /boot/initrd-2.6.18-92.1.10.el5.img --------------- mount output (in chroot /mnt/sysimage) /dev/sda1 on / type ext3 (rw,defaults) proc on /proc type proc (rw,defaults) sysfs on /sys type sysfs (rw,defaults) /dev/sysfs on /sys type sysfs (rw,defaults) ----------------- /boot/grub total 328 -rw-r--r-- 1 root root 30 Sep 20 16:42 device.map -rw-r--r-- 1 root root 7584 Sep 20 20:17 e2fs_stage1_5 -rw-r--r-- 1 root root 7456 Sep 20 20:17 fat_stage1_5 -rw-r--r-- 1 root root 6720 Sep 20 20:17 ffs_stage1_5 -rw------- 1 root root 618 Sep 20 20:17 grub.conf -rw------- 1 root root 917 Sep 20 20:16 grub.conf.orig -rw-r--r-- 1 root root 6720 Sep 20 20:17 iso9660_stage1_5 -rw-r--r-- 1 root root 8192 Sep 20 20:17 jfs_stage1_5 lrwxrwxrwx 1 root root 9 Sep 20 18:16 menu.lst -> grub.conf -rw-r--r-- 1 root root 6880 Sep 20 20:17 minix_stage1_5 -rw-r--r-- 1 root root 9248 Sep 20 20:17 reiserfs_stage1_5 -rw-r--r-- 1 root root 5427 Nov 22 2007 splash.xpm.gz -rw-r--r-- 1 root root 512 Sep 20 20:17 stage1 -rw-r--r-- 1 root root 104956 Sep 20 20:17 stage2 -rw-r--r-- 1 root root 104956 May 24 14:37 stage2_eltorito -rw-r--r-- 1 root root 7072 Sep 20 20:17 ufs2_stage1_5 -rw-r--r-- 1 root root 6272 Sep 20 20:17 vstafs_stage1_5 -rw-r--r-- 1 root root 8864 Sep 20 20:17 xfs_stage1_5 -------------------------- /boot total 14720 -rw-r--r-- 1 root root 884809 Jun 14 2007 System.map-2.6.18-8.1.6.el5 -rw-r--r-- 1 root root 912799 Aug 5 05:05 System.map-2.6.18-92.1.10.el5 -rw-r--r-- 1 root root 912900 Jun 25 11:13 System.map-2.6.18-92.1.6.el5 -rw-r--r-- 1 root root 62154 Jun 14 2007 config-2.6.18-8.1.6.el5 -rw-r--r-- 1 root root 65411 Aug 5 05:05 config-2.6.18-92.1.10.el5 -rw-r--r-- 1 root root 65410 Jun 25 11:13 config-2.6.18-92.1.6.el5 drwxr-xr-x 2 root root 4096 Sep 20 20:47 grub -rw------- 1 root root 1523888 Jul 12 19:47 initrd-2.6.18-8.1.6.el5.img -rw------- 1 root root 2412127 Aug 28 14:48 initrd-2.6.18-92.1.10.el5.img -rw------- 1 root root 2412095 Jul 12 17:31 initrd-2.6.18-92.1.6.el5.img -rw-r--r-- 1 root root 80032 Nov 22 2007 message -rw-r--r-- 1 root root 83542 Jun 14 2007 symvers-2.6.18-8.1.6.el5.gz -rw-r--r-- 1 root root 91721 Aug 5 05:05 symvers-2.6.18-92.1.10.el5.gz -rw-r--r-- 1 root root 91734 Jun 25 11:13 symvers-2.6.18-92.1.6.el5.gz -rw-r--r-- 1 root root 1765588 Jun 14 2007 vmlinuz-2.6.18-8.1.6.el5 -rw-r--r-- 1 root root 1805620 Aug 5 05:05 vmlinuz-2.6.18-92.1.10.el5 -rw-r--r-- 1 root root 1805556 Jun 25 11:13 vmlinuz-2.6.18-92.1.6.el5 -- Robert Arkiletian Eric Hamber Secondary, Vancouver, Canada Fl_TeacherTool http://www3.telus.net/public/robark/Fl_TeacherTool/ C++ GUI tutorial http://www3.telus.net/public/robark/ From nelsda at yahoo.com Sun Sep 21 05:50:56 2008 From: nelsda at yahoo.com (David D. Nelson) Date: Sat, 20 Sep 2008 22:50:56 -0700 (PDT) Subject: [K12OSN] K12LTSP 5 EL: no Web access for non-terminal clients In-Reply-To: <48D4E178.6010503@scheie.homedns.org> Message-ID: <151974.53944.qm@web35208.mail.mud.yahoo.com> Thanks, Peter, [I did it again. Something has changed somewhere since I can't simply hit reply in yahoo mail and have replies go to the list. Sorry for the PM, Peter.] I finally got dhcpd working by copying dhcpd-k12ltsp.conf to dhcpd.conf. I also found that I had to add eth0 as an accepted interface to iptables so that workstations (not terminals) could get through to the internet. For some reason the transparent proxy isn't working since I have to manually configure the workstation to use the proxy at port 3128. Any ideas on that? Maybe I need to re-install and leave webmin out of the picture. If I do, I just need a simple list of where the different config files are. Is there a list somewhere since I don't do this enough to remember from one time to the next? Thanks again for your help. David D. Nelson nelsda at yahoo.com http://www.evalbum.com/1328 --- On Sat, 9/20/08, Peter Scheie wrote: > From: Peter Scheie > Subject: Re: [K12OSN] K12LTSP 5 EL: no Web access for non-terminal clients > To: nelsda at yahoo.com, "Support list for open source software in schools." > Date: Saturday, September 20, 2008, 4:41 AM > Yes, the dhcpd config file you want to make any > modifications to is > dhcpd-k12ltsp.conf, not /etc/dhcpd.conf. Likewise, I > recall a few years ago > someone on the list observing that if one is going to use > Webmin, one should > only use Webmin, as switching back and forth between that > and manually editing > files caused problems. > > Peter > > David D. Nelson wrote: > > Sorry Rob. The first reply only went to you not the > list. Here is another try. > > > > Ok, I checked /proc/sys/net/ipv4/ip_forward and it has > a 1 in it. I looked at /etc/dhcpd.conf and all it has in it > is: > > > > # > > # DHCP Server Configuration file. > > # see /usr/share/doc/dhcp*/dhcpd.conf.sample > > # > > > > When I added the option routers x.x.x.x line in it and > I did a service dhcpd restart, dhcpd failed to start. I > reverted to the original dhcpd.conf file and tried again and > still got a failure on start. I see that there is a > dhcpd-k12ltsp.conf file. Is this the one that is actually > used? It seems like I remember older versions of K12LTSP had > a line in dhcpd.conf pointing to dhcpd-k12ltsp.conf. Is this > what is supposed to happen? > > > > Maybe my looking around with Webmin messed things up. > I didn't see any error messages in /var/log/messages so > I'm at a loss here. I'd rather not have to start > over again. > > > > > > David D. Nelson > > nelsda at yahoo.com > > > > http://www.evalbum.com/1328 > > > > > > --- On Fri, 9/19/08, Rob Owens > wrote: > > > >> From: Rob Owens > > >> Subject: Re: [K12OSN] K12LTSP 5 EL: no Web access > for non-terminal clients > >> To: nelsda at yahoo.com, "Support list for open > source software in schools." > >> Date: Friday, September 19, 2008, 5:00 AM > >> Your DHCP server (which I assume is your K12LTSP > server) > >> needs to tell > >> clients where the gateway is. dhcpd.conf should > have a > >> line like: > >> > >> option routers 10.112.0.123; (obviously, > don't use my > >> example address) > >> > >> Your thin clients have web access because > they're > >> nat'ing to the K12LTSP > >> server, and the K12LTSP server apparently knows > where its > >> gateway > >> (router) is. The other clients, though, need to > be told > >> where their > >> gateway (router) is. > >> > >> -Rob > >> > >> David D. Nelson wrote: > >>> My server died and I had to do a new install > so I did > >> a standard install K12LTSP 5 EL. After applying > updates > >> terminals would boot and work fine but I can't > seem to > >> get any access from other workstations on the > network. I > >> have eth0 on the local net and eth1 to the > internet. I tried > >> the following: > >>> chkconfig nat on > >>> service nat restart > >>> > >>> chkconfig iptables-k12ltsp on > >>> service iptables-k12ltsp restart > >>> > >>> chkconfig transparent-proxying on > >>> service transparent-proxying restart > >>> > >>> but I still don't have internet access > from the > >> workstations. I'm able to ping by domain name > so I > >> assume that DNS is set up correctly but I get an > invalid > >> request error from squid or a time out if squid > isn't > >> running. > >>> Any ideas? > >>> > >>> TIA, > >>> > >>> David D. Nelson > >>> nelsda at yahoo.com > >>> > >>> http://www.evalbum.com/1328 > >>> > >>> > >>> > >>> > >>> > _______________________________________________ > >>> K12OSN mailing list > >>> K12OSN at redhat.com > >>> https://www.redhat.com/mailman/listinfo/k12osn > >>> For more info see > >> > ******************************************************** > >> > >> The information transmitted is intended only for > the person > >> or entity to > >> which it is addressed and may contain confidential > and/or > >> privileged > >> material. If you are not the addressee, any > disclosure, > >> reproduction, > >> copying, distribution, or other dissemination or > use of > >> this transmission in > >> error please notify the sender immediately and > then delete > >> this e-mail. > >> E-mail transmission cannot be guaranteed to be > secure or > >> error free as > >> information could be intercepted, corrupted lost, > >> destroyed, arrive late or > >> incomplete, or contain viruses. > >> The sender therefore does not accept liability for > any > >> errors or omissions > >> in the contents of this message which arise as a > result of > >> e-mail > >> transmission. If verification is required please > request a > >> hard copy > >> version. > >> > >> > ******************************************************** > > > > > > > > > > _______________________________________________ > > K12OSN mailing list > > K12OSN at redhat.com > > https://www.redhat.com/mailman/listinfo/k12osn > > For more info see > > From cisna-barry at wc235.k12.il.us Sun Sep 21 13:40:16 2008 From: cisna-barry at wc235.k12.il.us (Barry Cisna) Date: Sun, 21 Sep 2008 08:40:16 -0500 (CDT) Subject: [K12OSN] Need help transfering EL5 from desktop to laptop Message-ID: <33629.12.179.19.21.1222004416.squirrel@216.24.126.68> Hi Robert, This is merly a guess but does the desktop you were copying Robert, Boot up laptop in rescue mode. try editing your fstab to include the following( on the topmost line) LABEL=/boot /boot ext3 defaults 1 2 Barry Cisna From tux_rocker at reinier.de Sun Sep 21 15:56:58 2008 From: tux_rocker at reinier.de (Reinier Lamers) Date: Sun, 21 Sep 2008 17:56:58 +0200 Subject: [K12OSN] Need help transfering EL5 from desktop to laptop In-Reply-To: References: Message-ID: 2008/9/21 Robert Arkiletian : > grub-install /dev/sda > The file /boot/grub/stage1 not read correctly. > > Can anyone determine why I'm getting the above error? I've gotten similar errors when I tried to restore GRUB from a rescue cd. I have found that a solution is to install LILO from the install CD to boot the system, and then install GRUB from a system that is already running its own kernel on its own root FS. If you do want to install GRUB straight from the rescue CD, you have to make sure that a lot of files describing the running system are correct. At least you have to mount /sys and /proc inside the chroot, so: mount -t proc proc /proc mount -t sysfs sys /sys Your mtab also has to be correct but that seems to be the case already. Reinier From robark at gmail.com Sun Sep 21 17:24:29 2008 From: robark at gmail.com (Robert Arkiletian) Date: Sun, 21 Sep 2008 10:24:29 -0700 Subject: [K12OSN] Re: Need help transfering EL5 from desktop to laptop In-Reply-To: References: Message-ID: I gave up. I tried everything. Don't know what the problem was (buggy bios/corrupt fs ....) and don't care now. Taking too much time to simply re-install grub (6hrs). I'm doing a complete re-install on the laptop. Thanks for the suggestions though. -- Robert Arkiletian Eric Hamber Secondary, Vancouver, Canada Fl_TeacherTool http://www3.telus.net/public/robark/Fl_TeacherTool/ C++ GUI tutorial http://www3.telus.net/public/robark/ From rowens at ptd.net Sun Sep 21 20:03:43 2008 From: rowens at ptd.net (Rob Owens) Date: Sun, 21 Sep 2008 16:03:43 -0400 Subject: [K12OSN] OT - Can't authenticate Ubuntu 8.04 to LDAP In-Reply-To: <48D54FB0.9080300@snarlnet.com> References: <48D54FB0.9080300@snarlnet.com> Message-ID: <20080921200343.GA14086@junker.owens.net> To fix your slow login problem, edit /etc/nsswitch.conf and remove all instances of the word "ldap". That should do it. But before you do, make sure you have a terminal open as the root user. That way after you make the changes and test it out (in another terminal), if it doesn't work you can still use your original root terminal to undo the changes you made to nsswitch.conf. -Rob On Sat, Sep 20, 2008 at 12:32:00PM -0700, Carl Keil wrote: > Thanks for the tip Todd. I'll try that when I go in on Monday. Do you > know any way to "wipe the LDAP login slate clean" on the client? I've > edited a bunch of conf files. When I simply comment out the ldap lines > that I've added then I can't log in at all (except as root/recovery) to > uncomment them out again. Then, I can log in again, but the login > process is super slow (minutes). It got slow when I first edited those > files. It's only allowing local logins (accounts created on the > client), but it feels like it's trying to do an LDAP thing too and I > have to wait for some sort of timeout from LDAP and maybe from the /home > export before the computer gets going. > > I was sloppy and in a hurry when I first edited those files. I should > have made backups and kept a log of what I was doing, but I didn't. Is > there any way to recreate the default conf files for pam and libnss and > all that stuff? I'm getting the feeling I need to reinstall Ubuntu on > that box and really start over. It's a drag, because I did a bunch of > other configuring on that box to make it my workstation (dual monitors, > etc., etc.). > > Thanks, > > ck > > > >You should be able to run ldapsearch from the client by specifying the > >server. I think the command is > > > >ldapsearch -H hosturl -D bindname -W > > > >but I don't have access to an LDAP server to check that at the moment. > > > >On Fri, Sep 19, 2008 at 8:40 PM, Carl Keil wrote: > > > > > >>> Hey Folks, > >>> > >>> I've been trying for weeks to set up an LDAP server. I've got the > >>feeling > >>> that they LDAP server is working, but I'm not sure. I am sure that I > >>can't > >>> get my Ubuntu 8 test client to authenticate from it. Is there anything > >>like > >>> a troubleshooting procedure for this? Is there a way to test my > >>connection > >>> to the server from the client short of rebooting and trying to log in? > >>> (Make sure I'm not having firewall, dns, etc. issues?) > >>> Also, I kindof think my test client is fairly hosed from all the conf > >>file > >>> editing I've done. I've tried uninstalling ldap-auth-config and > >>> reinstalling it, but it doesn't ask me questions when I reinstall. Is > >>there > >>> a procedure for "resetting" all the files that pertain to logging in > >>(the > >>> stuff in pam.d, etc.), so that I can try reconfiguring for LDAP > >>> authentication from scratch again? Right now my client takes forever > >>to log > >>> in (locally), so testing is a real pain. > >>> Any help would be appreciated. > >>> > >>> Thanks, > >>> > >>> ck > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see From rob.owens at biochemfluidics.com Mon Sep 22 12:35:00 2008 From: rob.owens at biochemfluidics.com (Rob Owens) Date: Mon, 22 Sep 2008 08:35:00 -0400 Subject: [K12OSN] K12LTSP 5 EL: no Web access for non-terminal clients In-Reply-To: <48D4E178.6010503@scheie.homedns.org> References: <290373.16271.qm@web35208.mail.mud.yahoo.com> <48D4E178.6010503@scheie.homedns.org> Message-ID: <48D790F4.5040003@biochemfluidics.com> Sorry about that! On my system it's /etc/dhcpd.conf. I'm not sure if I changed it to that, or if it's a result of me installing this system when it was still in beta. -Rob Peter Scheie wrote: > Yes, the dhcpd config file you want to make any modifications to is > dhcpd-k12ltsp.conf, not /etc/dhcpd.conf. Likewise, I recall a few years > ago someone on the list observing that if one is going to use Webmin, > one should only use Webmin, as switching back and forth between that and > manually editing files caused problems. > > Peter > > David D. Nelson wrote: >> Sorry Rob. The first reply only went to you not the list. Here is >> another try. >> >> Ok, I checked /proc/sys/net/ipv4/ip_forward and it has a 1 in it. I >> looked at /etc/dhcpd.conf and all it has in it is: >> >> # >> # DHCP Server Configuration file. >> # see /usr/share/doc/dhcp*/dhcpd.conf.sample # >> >> When I added the option routers x.x.x.x line in it and I did a service >> dhcpd restart, dhcpd failed to start. I reverted to the original >> dhcpd.conf file and tried again and still got a failure on start. I >> see that there is a dhcpd-k12ltsp.conf file. Is this the one that is >> actually used? It seems like I remember older versions of K12LTSP had >> a line in dhcpd.conf pointing to dhcpd-k12ltsp.conf. Is this what is >> supposed to happen? >> >> Maybe my looking around with Webmin messed things up. I didn't see any >> error messages in /var/log/messages so I'm at a loss here. I'd rather >> not have to start over again. >> >> >> David D. Nelson >> nelsda at yahoo.com >> >> http://www.evalbum.com/1328 >> >> >> --- On Fri, 9/19/08, Rob Owens wrote: >> >>> From: Rob Owens >>> Subject: Re: [K12OSN] K12LTSP 5 EL: no Web access for non-terminal >>> clients >>> To: nelsda at yahoo.com, "Support list for open source software in >>> schools." >>> Date: Friday, September 19, 2008, 5:00 AM >>> Your DHCP server (which I assume is your K12LTSP server) >>> needs to tell >>> clients where the gateway is. dhcpd.conf should have a >>> line like: >>> >>> option routers 10.112.0.123; (obviously, don't use my >>> example address) >>> >>> Your thin clients have web access because they're >>> nat'ing to the K12LTSP >>> server, and the K12LTSP server apparently knows where its >>> gateway >>> (router) is. The other clients, though, need to be told >>> where their >>> gateway (router) is. >>> >>> -Rob >>> >>> David D. Nelson wrote: >>>> My server died and I had to do a new install so I did >>> a standard install K12LTSP 5 EL. After applying updates >>> terminals would boot and work fine but I can't seem to >>> get any access from other workstations on the network. I >>> have eth0 on the local net and eth1 to the internet. I tried >>> the following: >>>> chkconfig nat on >>>> service nat restart >>>> >>>> chkconfig iptables-k12ltsp on >>>> service iptables-k12ltsp restart >>>> >>>> chkconfig transparent-proxying on >>>> service transparent-proxying restart >>>> >>>> but I still don't have internet access from the >>> workstations. I'm able to ping by domain name so I >>> assume that DNS is set up correctly but I get an invalid >>> request error from squid or a time out if squid isn't >>> running. >>>> Any ideas? >>>> >>>> TIA, >>>> >>>> David D. Nelson >>>> nelsda at yahoo.com >>>> >>>> http://www.evalbum.com/1328 >>>> >>>> >>>> >>>> _______________________________________________ >>>> K12OSN mailing list >>>> K12OSN at redhat.com >>>> https://www.redhat.com/mailman/listinfo/k12osn >>>> For more info see >>> ******************************************************** >>> >>> The information transmitted is intended only for the person >>> or entity to >>> which it is addressed and may contain confidential and/or >>> privileged >>> material. If you are not the addressee, any disclosure, >>> reproduction, >>> copying, distribution, or other dissemination or use of >>> this transmission in >>> error please notify the sender immediately and then delete >>> this e-mail. >>> E-mail transmission cannot be guaranteed to be secure or >>> error free as >>> information could be intercepted, corrupted lost, >>> destroyed, arrive late or >>> incomplete, or contain viruses. >>> The sender therefore does not accept liability for any >>> errors or omissions >>> in the contents of this message which arise as a result of >>> e-mail >>> transmission. If verification is required please request a >>> hard copy >>> version. >>> >>> ******************************************************** >> >> >> >> _______________________________________________ >> K12OSN mailing list >> K12OSN at redhat.com >> https://www.redhat.com/mailman/listinfo/k12osn >> For more info see >> > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** From whatch at anwsu.org Mon Sep 22 13:26:11 2008 From: whatch at anwsu.org (Will Hatch) Date: Mon, 22 Sep 2008 09:26:11 -0400 Subject: [K12OSN] 1 nic k12ltsp 6.0 Message-ID: <48D764BC.0948.00D4.0@anwsu.org> I have k12ltsp successfully running on a Dell Optiplex 745 with one NIC. I am accessing it with DevonIT thin clients. I have fixed the ip address as 192.168.3.112, and with the DevonIT thin clients all I had to do is create a session to access the linux terminal server. It works beautifully! What I'm wondering though is how do I tap into my k12 box from a traditional computer? I have a Windows Server 2008 box handling DHCP and DNS in the school. We are using a Windows network for terminal services also, and this is our primary platform. I guess I"m looking for something like the remote desktop connection. It would be nice to get the k12 box from other places in the school, besides the lab where the DevonIT clients are located. Thanks! *********************************** PRIVILEGED AND CONFIDENTIAL: This communication, including attachments, is for the exclusive use of addressee and may contain proprietary, confidential or privileged information. If you are not the intended recipient, any use, copying, disclosure, dissemination or distribution is strictly prohibited. If you're not the intended recipient, please notify the sender immediately by return email and delete this communication and destroy all copies. It is the policy of ANWSU not to discriminate on the basis or race, color, religion, national origin, gender, disability, or gender orientation in its educational programs or activities, or in its employment policies as required by Title IX of the 1972 Educational Amendments, by Section 504 of the Rehabilitation Act of 1973, by Title VI of the Civil Rights Act of 1964, and by Vermont State Law. From microman at cmosnetworks.com Mon Sep 22 14:39:53 2008 From: microman at cmosnetworks.com (=?ISO-8859-1?Q?=22Terrell_Prud=E9_Jr=2E=22?=) Date: Mon, 22 Sep 2008 10:39:53 -0400 Subject: [K12OSN] 1 nic k12ltsp 6.0 In-Reply-To: <48D764BC.0948.00D4.0@anwsu.org> References: <48D764BC.0948.00D4.0@anwsu.org> Message-ID: <48D7AE39.5040501@cmosnetworks.com> Will Hatch wrote: > I have k12ltsp successfully running on a Dell Optiplex 745 with one NIC. I am accessing it with DevonIT thin clients. I have fixed the ip address as 192.168.3.112, and with the DevonIT thin clients all I had to do is create a session to access the linux terminal server. It works beautifully! > > What I'm wondering though is how do I tap into my k12 box from a traditional computer? I have a Windows Server 2008 box handling DHCP and DNS in the school. We are using a Windows network for terminal services also, and this is our primary platform. > > I guess I"m looking for something like the remote desktop connection. It would be nice to get the k12 box from other places in the school, besides the lab where the DevonIT clients are located. > > Thanks! > > Glad you're having success with K12LTSP. Note: if you're running K12LTSP 6.0, I think everyone on this list would recommend that you move to 5.0EL as soon as you possibly can. The reason is that Fedora Core 6 (the basis of version 6.0) is no longer supported with security updates since December 2007. Version 5.0EL, on the other hand, will get security updates until 2014. Now, to answer your question, we'll need to know what OS these "traditional computers" are running, e. g. a GNU/Linux distro, FreeBSD, Mac OS, etc. --TP _______________________________ Do you GNU ? Microsoft Free since 2003 --the ultimate antivirus protection! -------------- next part -------------- An HTML attachment was scrubbed... URL: From whatch at anwsu.org Mon Sep 22 15:47:16 2008 From: whatch at anwsu.org (Will Hatch) Date: Mon, 22 Sep 2008 11:47:16 -0400 Subject: [K12OSN] 1 nic k12ltsp 6.0 In-Reply-To: <48D7AE39.5040501@cmosnetworks.com> References: <48D764BC.0948.00D4.0@anwsu.org> <48D7AE39.5040501@cmosnetworks.com> Message-ID: <48D785CD.0948.00D4.0@anwsu.org> Sorry I omitted this important information. All of these computers run either windows 2000 professional or windows xp. Does 5.0EL have all of the educational software added to it? Is it an upgrade, or do I need to do a fresh install? >>> "Terrell Prud? Jr." 9/22/2008 10:39 am >>> Will Hatch wrote: > I have k12ltsp successfully running on a Dell Optiplex 745 with one NIC. I am accessing it with DevonIT thin clients. I have fixed the ip address as 192.168.3.112, and with the DevonIT thin clients all I had to do is create a session to access the linux terminal server. It works beautifully! > > What I'm wondering though is how do I tap into my k12 box from a traditional computer? I have a Windows Server 2008 box handling DHCP and DNS in the school. We are using a Windows network for terminal services also, and this is our primary platform. > > I guess I"m looking for something like the remote desktop connection. It would be nice to get the k12 box from other places in the school, besides the lab where the DevonIT clients are located. > > Thanks! > > Glad you're having success with K12LTSP. Note: if you're running K12LTSP 6.0, I think everyone on this list would recommend that you move to 5.0EL as soon as you possibly can. The reason is that Fedora Core 6 (the basis of version 6.0) is no longer supported with security updates since December 2007. Version 5.0EL, on the other hand, will get security updates until 2014. Now, to answer your question, we'll need to know what OS these "traditional computers" are running, e. g. a GNU/Linux distro, FreeBSD, Mac OS, etc. --TP _______________________________ Do you GNU ? Microsoft Free since 2003 --the ultimate antivirus protection! *********************************** PRIVILEGED AND CONFIDENTIAL: This communication, including attachments, is for the exclusive use of addressee and may contain proprietary, confidential or privileged information. If you are not the intended recipient, any use, copying, disclosure, dissemination or distribution is strictly prohibited. If you're not the intended recipient, please notify the sender immediately by return email and delete this communication and destroy all copies. It is the policy of ANWSU not to discriminate on the basis or race, color, religion, national origin, gender, disability, or gender orientation in its educational programs or activities, or in its employment policies as required by Title IX of the 1972 Educational Amendments, by Section 504 of the Rehabilitation Act of 1973, by Title VI of the Civil Rights Act of 1964, and by Vermont State Law. From microman at cmosnetworks.com Mon Sep 22 16:23:55 2008 From: microman at cmosnetworks.com (=?UTF-8?B?IlRlcnJlbGwgUHJ1ZMOpIEpyLiI=?=) Date: Mon, 22 Sep 2008 12:23:55 -0400 Subject: [K12OSN] 1 nic k12ltsp 6.0 In-Reply-To: <48D785CD.0948.00D4.0@anwsu.org> References: <48D764BC.0948.00D4.0@anwsu.org> <48D7AE39.5040501@cmosnetworks.com> <48D785CD.0948.00D4.0@anwsu.org> Message-ID: <48D7C69B.6040701@cmosnetworks.com> In that case, it'll be more difficult (Microsoft Windows generally is), but it's still possible. What you need is something called an X11 server that you install on your MS Windows boxes and point them at the LTSP server. It'll do an "XDMCP" (X Display Manager Control Protocol) query to your LTSP box, which is running GDM, KDM, or XDM. The G/K/XDM will answer the X11 server on the MS Windows box and say, "Oh, you're making an XDMCP query! You must want a login screen. Here you go." And you will see the K12LTSP login screen. The reason that GNU/Linux or *BSD boxes are so much easier here is that they generally come with X11 servers, namely XFree86 or X.org. That's *one* reason why it's so easy to use old Power Macs or UltraSPARCs as LTSP thin clients, BTW (processor architecture is irrelevant to X11, by design). Essentially, if you can make an XDMCP query, BOOM, you're in. I'd suggest Googling for "XDM" and "MS Windows" or something along those lines. That'll probably turn up an XDMCP-supporting X11 server. Hummingbird used to make an X11 server for Win32, but I don't know if they still do. --TP _______________________________ Do you GNU ? Microsoft Free since 2003 --the ultimate antivirus protection! Will Hatch wrote: > Sorry I omitted this important information. All of these computers run > either windows 2000 professional or windows xp. > > Does 5.0EL have all of the educational software added to it? Is it an > upgrade, or do I need to do a fresh install? > > >>>> "Terrell Prud? Jr." 9/22/2008 10:39 am >>>> >>>> > > Will Hatch wrote: > >> I have k12ltsp successfully running on a Dell Optiplex 745 with one >> > NIC. I am accessing it with DevonIT thin clients. I have fixed the ip > address as 192.168.3.112, and with the DevonIT thin clients all I had to > do is create a session to access the linux terminal server. It works > beautifully! > >> What I'm wondering though is how do I tap into my k12 box from a >> > traditional computer? I have a Windows Server 2008 box handling DHCP > and DNS in the school. We are using a Windows network for terminal > services also, and this is our primary platform. > >> I guess I"m looking for something like the remote desktop connection. >> > It would be nice to get the k12 box from other places in the school, > besides the lab where the DevonIT clients are located. > >> Thanks! >> >> >> > > Glad you're having success with K12LTSP. Note: if you're running > K12LTSP 6.0, I think everyone on this list would recommend that you > move > to 5.0EL as soon as you possibly can. The reason is that Fedora Core 6 > > (the basis of version 6.0) is no longer supported with security updates > > since December 2007. Version 5.0EL, on the other hand, will get > security updates until 2014. > > Now, to answer your question, we'll need to know what OS these > "traditional computers" are running, e. g. a GNU/Linux distro, FreeBSD, > > Mac OS, etc. > > --TP > _______________________________ > Do you GNU ? > Microsoft Free since 2003 --the ultimate > antivirus protection! > > > > > *********************************** > PRIVILEGED AND CONFIDENTIAL: This communication, including attachments, > is for the exclusive use of addressee and may contain proprietary, > confidential or privileged information. If you are not the intended > recipient, any use, copying, disclosure, dissemination or distribution > is strictly prohibited. If you're not the intended recipient, please > notify the sender immediately by return email and delete this > communication and destroy all copies. > It is the policy of ANWSU not to discriminate on the basis or race, > color, religion, national origin, gender, disability, or gender > orientation in its educational programs or activities, or in its > employment policies as required by Title IX of the 1972 Educational > Amendments, by Section 504 of the Rehabilitation Act of 1973, by Title > VI of the Civil Rights Act of 1964, and by Vermont State Law. > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > -------------- next part -------------- An HTML attachment was scrubbed... URL: From peter at scheie.homedns.org Mon Sep 22 16:39:11 2008 From: peter at scheie.homedns.org (Peter Scheie) Date: Mon, 22 Sep 2008 11:39:11 -0500 Subject: [K12OSN] 1 nic k12ltsp 6.0 In-Reply-To: <48D7C69B.6040701@cmosnetworks.com> References: <48D764BC.0948.00D4.0@anwsu.org> <48D7AE39.5040501@cmosnetworks.com> <48D785CD.0948.00D4.0@anwsu.org> <48D7C69B.6040701@cmosnetworks.com> Message-ID: <48D7CA2F.5060901@scheie.homedns.org> You can also access the server via vnc, for which there are Windows clients. Avoid getting too many clients connecting this way, as they extract a greater load on the server than an equal number of thin clients. But for a small number of Windows boxes that only need infrequent access to the server, it works quite well. Peter Terrell Prud? Jr. wrote: > In that case, it'll be more difficult (Microsoft Windows generally is), > but it's still possible.? What you need is something called an X11 > server that you install on your MS Windows boxes and point them at the > LTSP server.? It'll do an "XDMCP" (X Display Manager Control Protocol) > query to your LTSP box, which is running GDM, KDM, or XDM.? The G/K/XDM > will answer the X11 server on the MS Windows box and say, "Oh, you're > making an XDMCP query!? You must want a login screen.? Here you go."? > And you will see the K12LTSP login screen. > > The reason that GNU/Linux or *BSD boxes are so much easier here is that > they generally come with X11 servers, namely XFree86 or X.org.? That's > *one* reason why it's so easy to use old Power Macs or UltraSPARCs as > LTSP thin clients, BTW (processor architecture is irrelevant to X11, by > design).? Essentially, if you can make an XDMCP query, BOOM, you're in. > > I'd suggest Googling for "XDM" and "MS Windows" or something along those > lines.? That'll probably turn up an XDMCP-supporting X11 server.? > Hummingbird used to make an X11 server for Win32, but I don't know if > they still do. > > --TP > _______________________________ > Do you GNU ? > Microsoft Free since 2003 --the ultimate > antivirus protection! > > > Will Hatch wrote: >> Sorry I omitted this important information. All of these computers run >> either windows 2000 professional or windows xp. >> >> Does 5.0EL have all of the educational software added to it? Is it an >> upgrade, or do I need to do a fresh install? >> >> >>>>> "Terrell Prud?? Jr." 9/22/2008 10:39 am >>>>> >>>>> >> >> Will Hatch wrote: >> >>> I have k12ltsp successfully running on a Dell Optiplex 745 with one >>> >> NIC. I am accessing it with DevonIT thin clients. I have fixed the ip >> address as 192.168.3.112, and with the DevonIT thin clients all I had to >> do is create a session to access the linux terminal server. It works >> beautifully! >> >>> What I'm wondering though is how do I tap into my k12 box from a >>> >> traditional computer? I have a Windows Server 2008 box handling DHCP >> and DNS in the school. We are using a Windows network for terminal >> services also, and this is our primary platform. >> >>> I guess I"m looking for something like the remote desktop connection. >>> >> It would be nice to get the k12 box from other places in the school, >> besides the lab where the DevonIT clients are located. >> >>> Thanks! >>> >>> >>> >> >> Glad you're having success with K12LTSP. Note: if you're running >> K12LTSP 6.0, I think everyone on this list would recommend that you >> move >> to 5.0EL as soon as you possibly can. The reason is that Fedora Core 6 >> >> (the basis of version 6.0) is no longer supported with security updates >> >> since December 2007. Version 5.0EL, on the other hand, will get >> security updates until 2014. >> >> Now, to answer your question, we'll need to know what OS these >> "traditional computers" are running, e. g. a GNU/Linux distro, FreeBSD, >> >> Mac OS, etc. >> >> --TP >> _______________________________ >> Do you GNU ? >> Microsoft Free since 2003 --the ultimate >> antivirus protection! >> >> >> >> >> *********************************** >> PRIVILEGED AND CONFIDENTIAL: This communication, including attachments, >> is for the exclusive use of addressee and may contain proprietary, >> confidential or privileged information. If you are not the intended >> recipient, any use, copying, disclosure, dissemination or distribution >> is strictly prohibited. If you're not the intended recipient, please >> notify the sender immediately by return email and delete this >> communication and destroy all copies. >> It is the policy of ANWSU not to discriminate on the basis or race, >> color, religion, national origin, gender, disability, or gender >> orientation in its educational programs or activities, or in its >> employment policies as required by Title IX of the 1972 Educational >> Amendments, by Section 504 of the Rehabilitation Act of 1973, by Title >> VI of the Civil Rights Act of 1964, and by Vermont State Law. >> >> _______________________________________________ >> K12OSN mailing list >> K12OSN at redhat.com >> https://www.redhat.com/mailman/listinfo/k12osn >> For more info see >> > > ------------------------------------------------------------------------ > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see From nils at breun.nl Mon Sep 22 16:46:52 2008 From: nils at breun.nl (Nils Breunese) Date: Mon, 22 Sep 2008 18:46:52 +0200 Subject: [K12OSN] 1 nic k12ltsp 6.0 In-Reply-To: <48D7CA2F.5060901@scheie.homedns.org> References: <48D764BC.0948.00D4.0@anwsu.org> <48D7AE39.5040501@cmosnetworks.com> <48D785CD.0948.00D4.0@anwsu.org> <48D7C69B.6040701@cmosnetworks.com> <48D7CA2F.5060901@scheie.homedns.org> Message-ID: <1A44E86C-1541-4D52-94A9-CBBFDB81674B@breun.nl> Peter Scheie wrote: > You can also access the server via vnc, for which there are Windows > clients. Avoid getting too many clients connecting this way, as they > extract a greater load on the server than an equal number of thin > clients. But for a small number of Windows boxes that only need > infrequent access to the server, it works quite well. And don't forget about FreeNX. I believe all these options are on the K12LTSP wiki. Nils Breunese. From dahopkins429 at gmail.com Mon Sep 22 17:19:54 2008 From: dahopkins429 at gmail.com (David Hopkins) Date: Mon, 22 Sep 2008 13:19:54 -0400 Subject: [K12OSN] 1 nic k12ltsp 6.0 In-Reply-To: <48D7C69B.6040701@cmosnetworks.com> References: <48D764BC.0948.00D4.0@anwsu.org> <48D7AE39.5040501@cmosnetworks.com> <48D785CD.0948.00D4.0@anwsu.org> <48D7C69B.6040701@cmosnetworks.com> Message-ID: > I'd suggest Googling for "XDM" and "MS Windows" or something along those > lines. That'll probably turn up an XDMCP-supporting X11 server. > Hummingbird used to make an X11 server for Win32, but I don't know if they > still do. Hummingbird Exceed with the add-on Exceed3D is what I use at work, but it is not cheap. There is a cygwin Xserver that also works which coupled with Putty is straightforward for simply login shells. However, I have used FreeNX as well and that works well enough if I don't need the graphics capabilities. Sincerely, Dave Hopkins From microman at cmosnetworks.com Mon Sep 22 17:32:05 2008 From: microman at cmosnetworks.com (=?UTF-8?B?IlRlcnJlbGwgUHJ1ZMOpIEpyLiI=?=) Date: Mon, 22 Sep 2008 13:32:05 -0400 Subject: [K12OSN] 1 nic k12ltsp 6.0 In-Reply-To: <48D785CD.0948.00D4.0@anwsu.org> References: <48D764BC.0948.00D4.0@anwsu.org> <48D7AE39.5040501@cmosnetworks.com> <48D785CD.0948.00D4.0@anwsu.org> Message-ID: <48D7D695.800@cmosnetworks.com> Will Hatch wrote: > Does 5.0EL have all of the educational software added to it? Is it an > upgrade, or do I need to do a fresh install? > Red Hat states that you *can* do an in-place upgrade, but that even they recommend a fresh install. That's what I do. Matter of fact, just last week, I finally upgraded my home server (also a single-NIC system) from 4.2EL to 5.0EL via a fresh install. And yes, 5.0EL does indeed have all the educational software on it. That's the point of K12LTSP. :-) Anything that you see that you need, just "yum install" it, or use YumEx (I like YumEx). --TP From whatch at anwsu.org Mon Sep 22 17:40:08 2008 From: whatch at anwsu.org (Will Hatch) Date: Mon, 22 Sep 2008 13:40:08 -0400 Subject: [K12OSN] 1 nic k12ltsp 6.0 In-Reply-To: <48D7D695.800@cmosnetworks.com> References: <48D764BC.0948.00D4.0@anwsu.org> <48D7AE39.5040501@cmosnetworks.com> <48D785CD.0948.00D4.0@anwsu.org><48D785CD.0948.00D4.0@anwsu.org> <48D7D695.800@cmosnetworks.com> Message-ID: <48D7A041.0948.00D4.0@anwsu.org> I installed xming to my Windows XP Pro workstation, and everything seemed to install correctly. I have two icons on the desktop; xming and xlaunch. When I start xlaunch it prompts me to connect to a server. I'm typing in the ip address of my k12ltsp server, but nothing happens. Is this a firewall or selinux issue on my k12 box? Do I have to tell my k12 box to accept remote logins? >>> "Terrell Prud? Jr." 9/22/2008 1:32 pm >>> Will Hatch wrote: > Does 5.0EL have all of the educational software added to it? Is it an > upgrade, or do I need to do a fresh install? > Red Hat states that you *can* do an in-place upgrade, but that even they recommend a fresh install. That's what I do. Matter of fact, just last week, I finally upgraded my home server (also a single-NIC system) from 4.2EL to 5.0EL via a fresh install. And yes, 5.0EL does indeed have all the educational software on it. That's the point of K12LTSP. :-) Anything that you see that you need, just "yum install" it, or use YumEx (I like YumEx). --TP _______________________________________________ K12OSN mailing list K12OSN at redhat.com https://www.redhat.com/mailman/listinfo/k12osn For more info see *********************************** PRIVILEGED AND CONFIDENTIAL: This communication, including attachments, is for the exclusive use of addressee and may contain proprietary, confidential or privileged information. If you are not the intended recipient, any use, copying, disclosure, dissemination or distribution is strictly prohibited. If you're not the intended recipient, please notify the sender immediately by return email and delete this communication and destroy all copies. It is the policy of ANWSU not to discriminate on the basis or race, color, religion, national origin, gender, disability, or gender orientation in its educational programs or activities, or in its employment policies as required by Title IX of the 1972 Educational Amendments, by Section 504 of the Rehabilitation Act of 1973, by Title VI of the Civil Rights Act of 1964, and by Vermont State Law. From microman at cmosnetworks.com Mon Sep 22 18:13:41 2008 From: microman at cmosnetworks.com (=?UTF-8?B?IlRlcnJlbGwgUHJ1ZMOpIEpyLiI=?=) Date: Mon, 22 Sep 2008 14:13:41 -0400 Subject: [K12OSN] 1 nic k12ltsp 6.0 In-Reply-To: <48D7A041.0948.00D4.0@anwsu.org> References: <48D764BC.0948.00D4.0@anwsu.org> <48D7AE39.5040501@cmosnetworks.com> <48D785CD.0948.00D4.0@anwsu.org><48D785CD.0948.00D4.0@anwsu.org> <48D7D695.800@cmosnetworks.com> <48D7A041.0948.00D4.0@anwsu.org> Message-ID: <48D7E055.7040407@cmosnetworks.com> Since the thin clients are connecting, I doubt it's a firewall issue. Also, K12 is set to accept XDMCP logins by default; this is so that the thin clients work. However, just in case, make sure that UDP *and* TCP port 177 are both open on the K12LTSP server. Make sure that this "xming" does in fact support XDMCP! This is very important, otherwise you won't get a K12LTSP login screen. --TP _______________________________ Do you GNU ? Microsoft Free since 2003 --the ultimate antivirus protection! Will Hatch wrote: > I installed xming to my Windows XP Pro workstation, and everything > seemed to install correctly. I have two icons on the desktop; xming and > xlaunch. When I start xlaunch it prompts me to connect to a server. > I'm typing in the ip address of my k12ltsp server, but nothing happens. > Is this a firewall or selinux issue on my k12 box? Do I have to tell my > k12 box to accept remote logins? > > >>>> "Terrell Prud? Jr." 9/22/2008 1:32 pm >>>> >>>> > Will Hatch wrote: > >> Does 5.0EL have all of the educational software added to it? Is it >> > an > >> upgrade, or do I need to do a fresh install? >> >> > > Red Hat states that you *can* do an in-place upgrade, but that even > they > recommend a fresh install. That's what I do. Matter of fact, just > last > week, I finally upgraded my home server (also a single-NIC system) from > > 4.2EL to 5.0EL via a fresh install. > > And yes, 5.0EL does indeed have all the educational software on it. > That's the point of K12LTSP. :-) Anything that you see that you need, > > just "yum install" it, or use YumEx (I like YumEx). > > --TP > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > > > *********************************** > PRIVILEGED AND CONFIDENTIAL: This communication, including attachments, > is for the exclusive use of addressee and may contain proprietary, > confidential or privileged information. If you are not the intended > recipient, any use, copying, disclosure, dissemination or distribution > is strictly prohibited. If you're not the intended recipient, please > notify the sender immediately by return email and delete this > communication and destroy all copies. > It is the policy of ANWSU not to discriminate on the basis or race, > color, religion, national origin, gender, disability, or gender > orientation in its educational programs or activities, or in its > employment policies as required by Title IX of the 1972 Educational > Amendments, by Section 504 of the Rehabilitation Act of 1973, by Title > VI of the Civil Rights Act of 1964, and by Vermont State Law. > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > -------------- next part -------------- An HTML attachment was scrubbed... URL: From microman at cmosnetworks.com Mon Sep 22 18:15:55 2008 From: microman at cmosnetworks.com (=?UTF-8?B?IlRlcnJlbGwgUHJ1ZMOpIEpyLiI=?=) Date: Mon, 22 Sep 2008 14:15:55 -0400 Subject: [K12OSN] 1 nic k12ltsp 6.0 In-Reply-To: <48D7A041.0948.00D4.0@anwsu.org> References: <48D764BC.0948.00D4.0@anwsu.org> <48D7AE39.5040501@cmosnetworks.com> <48D785CD.0948.00D4.0@anwsu.org><48D785CD.0948.00D4.0@anwsu.org> <48D7D695.800@cmosnetworks.com> <48D7A041.0948.00D4.0@anwsu.org> Message-ID: <48D7E0DB.6030209@cmosnetworks.com> Two minutes of Googling yielded this link (hint hint). This guy's doing Xming logins to Linux boxes. Might help in your case. http://it.toolbox.com/blogs/locutus/linux-login-with-a-windows-box-and-xdmcp-15547 --TP _______________________________ Do you GNU ? Microsoft Free since 2003 --the ultimate antivirus protection! Will Hatch wrote: > I installed xming to my Windows XP Pro workstation, and everything > seemed to install correctly. I have two icons on the desktop; xming and > xlaunch. When I start xlaunch it prompts me to connect to a server. > I'm typing in the ip address of my k12ltsp server, but nothing happens. > Is this a firewall or selinux issue on my k12 box? Do I have to tell my > k12 box to accept remote logins? > > >>>> "Terrell Prud? Jr." 9/22/2008 1:32 pm >>>> >>>> > Will Hatch wrote: > >> Does 5.0EL have all of the educational software added to it? Is it >> > an > >> upgrade, or do I need to do a fresh install? >> >> > > Red Hat states that you *can* do an in-place upgrade, but that even > they > recommend a fresh install. That's what I do. Matter of fact, just > last > week, I finally upgraded my home server (also a single-NIC system) from > > 4.2EL to 5.0EL via a fresh install. > > And yes, 5.0EL does indeed have all the educational software on it. > That's the point of K12LTSP. :-) Anything that you see that you need, > > just "yum install" it, or use YumEx (I like YumEx). > > --TP > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > > > *********************************** > PRIVILEGED AND CONFIDENTIAL: This communication, including attachments, > is for the exclusive use of addressee and may contain proprietary, > confidential or privileged information. If you are not the intended > recipient, any use, copying, disclosure, dissemination or distribution > is strictly prohibited. If you're not the intended recipient, please > notify the sender immediately by return email and delete this > communication and destroy all copies. > It is the policy of ANWSU not to discriminate on the basis or race, > color, religion, national origin, gender, disability, or gender > orientation in its educational programs or activities, or in its > employment policies as required by Title IX of the 1972 Educational > Amendments, by Section 504 of the Rehabilitation Act of 1973, by Title > VI of the Civil Rights Act of 1964, and by Vermont State Law. > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > -------------- next part -------------- An HTML attachment was scrubbed... URL: From whatch at anwsu.org Mon Sep 22 19:10:28 2008 From: whatch at anwsu.org (Will Hatch) Date: Mon, 22 Sep 2008 15:10:28 -0400 Subject: [K12OSN] 1 nic k12ltsp 6.0 In-Reply-To: <48D7E0DB.6030209@cmosnetworks.com> References: <48D764BC.0948.00D4.0@anwsu.org> <48D7AE39.5040501@cmosnetworks.com> <48D785CD.0948.00D4.0@anwsu.org><48D785CD.0948.00D4.0@anwsu.org> <48D7D695.800@cmosnetworks.com> <48D7A041.0948.00D4.0@anwsu.org><48D7A041.0948.00D4.0@anwsu.org> <48D7E0DB.6030209@cmosnetworks.com> Message-ID: <48D7B56D.0948.00D4.0@anwsu.org> I followed those instructions, but no luck. I am using Gnome, not KDE. Are there similar config files for Gnome? >>> "Terrell Prud? Jr." 9/22/2008 2:15 pm >>> Two minutes of Googling yielded this link (hint hint). This guy's doing Xming logins to Linux boxes. Might help in your case. http://it.toolbox.com/blogs/locutus/linux-login-with-a-windows-box-and-xdmcp-15547 --TP _______________________________ Do you GNU ? Microsoft Free since 2003 --the ultimate antivirus protection! Will Hatch wrote: > I installed xming to my Windows XP Pro workstation, and everything > seemed to install correctly. I have two icons on the desktop; xming and > xlaunch. When I start xlaunch it prompts me to connect to a server. > I'm typing in the ip address of my k12ltsp server, but nothing happens. > Is this a firewall or selinux issue on my k12 box? Do I have to tell my > k12 box to accept remote logins? > > >>>> "Terrell Prud? Jr." 9/22/2008 1:32 pm >>>> >>>> > Will Hatch wrote: > >> Does 5.0EL have all of the educational software added to it? Is it >> > an > >> upgrade, or do I need to do a fresh install? >> >> > > Red Hat states that you *can* do an in-place upgrade, but that even > they > recommend a fresh install. That's what I do. Matter of fact, just > last > week, I finally upgraded my home server (also a single-NIC system) from > > 4.2EL to 5.0EL via a fresh install. > > And yes, 5.0EL does indeed have all the educational software on it. > That's the point of K12LTSP. :-) Anything that you see that you need, > > just "yum install" it, or use YumEx (I like YumEx). > > --TP > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > > > *********************************** > PRIVILEGED AND CONFIDENTIAL: This communication, including attachments, > is for the exclusive use of addressee and may contain proprietary, > confidential or privileged information. If you are not the intended > recipient, any use, copying, disclosure, dissemination or distribution > is strictly prohibited. If you're not the intended recipient, please > notify the sender immediately by return email and delete this > communication and destroy all copies. > It is the policy of ANWSU not to discriminate on the basis or race, > color, religion, national origin, gender, disability, or gender > orientation in its educational programs or activities, or in its > employment policies as required by Title IX of the 1972 Educational > Amendments, by Section 504 of the Rehabilitation Act of 1973, by Title > VI of the Civil Rights Act of 1964, and by Vermont State Law. > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > *********************************** PRIVILEGED AND CONFIDENTIAL: This communication, including attachments, is for the exclusive use of addressee and may contain proprietary, confidential or privileged information. If you are not the intended recipient, any use, copying, disclosure, dissemination or distribution is strictly prohibited. If you're not the intended recipient, please notify the sender immediately by return email and delete this communication and destroy all copies. It is the policy of ANWSU not to discriminate on the basis or race, color, religion, national origin, gender, disability, or gender orientation in its educational programs or activities, or in its employment policies as required by Title IX of the 1972 Educational Amendments, by Section 504 of the Rehabilitation Act of 1973, by Title VI of the Civil Rights Act of 1964, and by Vermont State Law. From carl at snarlnet.com Mon Sep 22 23:56:58 2008 From: carl at snarlnet.com (Carl Keil) Date: Mon, 22 Sep 2008 16:56:58 -0700 Subject: [K12OSN] still banging my head against Ubuntu 8 authenticating against LDAP Message-ID: <48D830CA.4010100@snarlnet.com> So, When I run "ldapsearch 10.0.1.252 domain.com -x" on the LDAP server, I get a list of all the people in the LDAP database. When I run the same search from the client I get a message saying that it can't contact the LDAP server. I've dropped the firewall on the server and I can ping the server. Anyone have any idea what the problem could be? How do you tell LDAP to listen to outside ports? Thanks, ck From nelsda at yahoo.com Tue Sep 23 02:56:31 2008 From: nelsda at yahoo.com (David D. Nelson) Date: Mon, 22 Sep 2008 19:56:31 -0700 (PDT) Subject: [K12OSN] K12LTSP 5 EL: no Web access for non-terminal clients In-Reply-To: <48D790F4.5040003@biochemfluidics.com> Message-ID: <453839.19252.qm@web35204.mail.mud.yahoo.com> Thanks, Rob. At least it is working now except for transparent proxying. David D. Nelson nelsda at yahoo.com http://www.evalbum.com/1328 --- On Mon, 9/22/08, Rob Owens wrote: > From: Rob Owens > Subject: Re: [K12OSN] K12LTSP 5 EL: no Web access for non-terminal clients > To: "Support list for open source software in schools." > Date: Monday, September 22, 2008, 5:35 AM > Sorry about that! On my system it's /etc/dhcpd.conf. > I'm not sure if I > changed it to that, or if it's a result of me > installing this system > when it was still in beta. > > -Rob > > Peter Scheie wrote: > > Yes, the dhcpd config file you want to make any > modifications to is > > dhcpd-k12ltsp.conf, not /etc/dhcpd.conf. Likewise, I > recall a few years > > ago someone on the list observing that if one is going > to use Webmin, > > one should only use Webmin, as switching back and > forth between that and > > manually editing files caused problems. > > > > Peter > > > > David D. Nelson wrote: > >> Sorry Rob. The first reply only went to you not > the list. Here is > >> another try. > >> > >> Ok, I checked /proc/sys/net/ipv4/ip_forward and it > has a 1 in it. I > >> looked at /etc/dhcpd.conf and all it has in it is: > >> > >> # > >> # DHCP Server Configuration file. > >> # see /usr/share/doc/dhcp*/dhcpd.conf.sample # > >> > >> When I added the option routers x.x.x.x line in it > and I did a service > >> dhcpd restart, dhcpd failed to start. I reverted > to the original > >> dhcpd.conf file and tried again and still got a > failure on start. I > >> see that there is a dhcpd-k12ltsp.conf file. Is > this the one that is > >> actually used? It seems like I remember older > versions of K12LTSP had > >> a line in dhcpd.conf pointing to > dhcpd-k12ltsp.conf. Is this what is > >> supposed to happen? > >> > >> Maybe my looking around with Webmin messed things > up. I didn't see any > >> error messages in /var/log/messages so I'm at > a loss here. I'd rather > >> not have to start over again. > >> > >> > >> David D. Nelson > >> nelsda at yahoo.com > >> > >> http://www.evalbum.com/1328 > >> > >> > >> --- On Fri, 9/19/08, Rob Owens > wrote: > >> > >>> From: Rob Owens > > >>> Subject: Re: [K12OSN] K12LTSP 5 EL: no Web > access for non-terminal > >>> clients > >>> To: nelsda at yahoo.com, "Support list for > open source software in > >>> schools." > >>> Date: Friday, September 19, 2008, 5:00 AM > >>> Your DHCP server (which I assume is your > K12LTSP server) > >>> needs to tell > >>> clients where the gateway is. dhcpd.conf > should have a > >>> line like: > >>> > >>> option routers 10.112.0.123; (obviously, > don't use my > >>> example address) > >>> > >>> Your thin clients have web access because > they're > >>> nat'ing to the K12LTSP > >>> server, and the K12LTSP server apparently > knows where its > >>> gateway > >>> (router) is. The other clients, though, need > to be told > >>> where their > >>> gateway (router) is. > >>> > >>> -Rob > >>> > >>> David D. Nelson wrote: > >>>> My server died and I had to do a new > install so I did > >>> a standard install K12LTSP 5 EL. After > applying updates > >>> terminals would boot and work fine but I > can't seem to > >>> get any access from other workstations on the > network. I > >>> have eth0 on the local net and eth1 to the > internet. I tried > >>> the following: > >>>> chkconfig nat on > >>>> service nat restart > >>>> > >>>> chkconfig iptables-k12ltsp on > >>>> service iptables-k12ltsp restart > >>>> > >>>> chkconfig transparent-proxying on > >>>> service transparent-proxying restart > >>>> > >>>> but I still don't have internet access > from the > >>> workstations. I'm able to ping by domain > name so I > >>> assume that DNS is set up correctly but I get > an invalid > >>> request error from squid or a time out if > squid isn't > >>> running. > >>>> Any ideas? > >>>> > >>>> TIA, > >>>> > >>>> David D. Nelson > >>>> nelsda at yahoo.com > >>>> > >>>> http://www.evalbum.com/1328 > >>>> > >>>> > >>>> > >>>> > _______________________________________________ > >>>> K12OSN mailing list > >>>> K12OSN at redhat.com > >>>> > https://www.redhat.com/mailman/listinfo/k12osn > >>>> For more info see > > >>> > ******************************************************** > >>> > >>> The information transmitted is intended only > for the person > >>> or entity to > >>> which it is addressed and may contain > confidential and/or > >>> privileged > >>> material. If you are not the addressee, any > disclosure, > >>> reproduction, > >>> copying, distribution, or other dissemination > or use of > >>> this transmission in > >>> error please notify the sender immediately and > then delete > >>> this e-mail. > >>> E-mail transmission cannot be guaranteed to be > secure or > >>> error free as > >>> information could be intercepted, corrupted > lost, > >>> destroyed, arrive late or > >>> incomplete, or contain viruses. > >>> The sender therefore does not accept liability > for any > >>> errors or omissions > >>> in the contents of this message which arise as > a result of > >>> e-mail > >>> transmission. If verification is required > please request a > >>> hard copy > >>> version. > >>> > >>> > ******************************************************** > >> > >> > >> > >> _______________________________________________ > >> K12OSN mailing list > >> K12OSN at redhat.com > >> https://www.redhat.com/mailman/listinfo/k12osn > >> For more info see > >> > > > > _______________________________________________ > > K12OSN mailing list > > K12OSN at redhat.com > > https://www.redhat.com/mailman/listinfo/k12osn > > For more info see > ******************************************************** > > The information transmitted is intended only for the person > or entity to > which it is addressed and may contain confidential and/or > privileged > material. If you are not the addressee, any disclosure, > reproduction, > copying, distribution, or other dissemination or use of > this transmission in > error please notify the sender immediately and then delete > this e-mail. > E-mail transmission cannot be guaranteed to be secure or > error free as > information could be intercepted, corrupted lost, > destroyed, arrive late or > incomplete, or contain viruses. > The sender therefore does not accept liability for any > errors or omissions > in the contents of this message which arise as a result of > e-mail > transmission. If verification is required please request a > hard copy > version. > > ******************************************************** > > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see From microman at cmosnetworks.com Tue Sep 23 05:04:29 2008 From: microman at cmosnetworks.com (=?UTF-8?B?IlRlcnJlbGwgUHJ1ZMOpIEpyLiI=?=) Date: Tue, 23 Sep 2008 01:04:29 -0400 Subject: [K12OSN] 1 nic k12ltsp 6.0 In-Reply-To: <48D7B56D.0948.00D4.0@anwsu.org> References: <48D764BC.0948.00D4.0@anwsu.org> <48D7AE39.5040501@cmosnetworks.com> <48D785CD.0948.00D4.0@anwsu.org><48D785CD.0948.00D4.0@anwsu.org> <48D7D695.800@cmosnetworks.com> <48D7A041.0948.00D4.0@anwsu.org><48D7A041.0948.00D4.0@anwsu.org> <48D7E0DB.6030209@cmosnetworks.com> <48D7B56D.0948.00D4.0@anwsu.org> Message-ID: <48D878DD.8060905@cmosnetworks.com> This has nothing to do with GNOME or KDE. Rather, it has everything to do with the fact that you're using an XDMCP-compatible display manager. For example, I use the KDM display manager (I just like its look better) and choose the GNOME, XFce, or KDE (or even FVWM at times) desktops as I please. Depends on my mood that day. Assuming that you're using GDM, note that XDMCP's already turned on, since your thin clients work. Do make sure you're using this "Xming" correctly, though. I don't use MS Windows, so I won't be much help there (anybody else out there doing this?). But that's where I'd check first. Maybe there's a config setting somewhere in it. If you want a second check to verify that your XDMCP's working, then take a GNU/Linux or BSD box (or Solaris or anything else with X11), start it without the GUI (that's runlevel 3 in RedHat/Fedora, runlevel 2 in Debian), and do an XDMCP query manually. You'd do it like this: X -query w.x.y.z where w.x.y.z is the IP address of your K12LTSP server. If that works, then the issue is with Xming. --TP _______________________________ Do you GNU ? Microsoft Free since 2003 --the ultimate antivirus protection! Will Hatch wrote: > I followed those instructions, but no luck. I am using Gnome, not KDE. > Are there similar config files for Gnome? > > >>>> "Terrell Prud? Jr." 9/22/2008 2:15 pm >>>> >>>> > Two minutes of Googling yielded this link (hint hint). This guy's > doing > Xming logins to Linux boxes. Might help in your case. > > > http://it.toolbox.com/blogs/locutus/linux-login-with-a-windows-box-and-xdmcp-15547 > > > --TP > _______________________________ > Do you GNU ? > Microsoft Free since 2003 --the ultimate > antivirus protection! > > > Will Hatch wrote: > >> I installed xming to my Windows XP Pro workstation, and everything >> seemed to install correctly. I have two icons on the desktop; xming >> > and > >> xlaunch. When I start xlaunch it prompts me to connect to a server. >> > > >> I'm typing in the ip address of my k12ltsp server, but nothing >> > happens. > >> Is this a firewall or selinux issue on my k12 box? Do I have to tell >> > my > >> k12 box to accept remote logins? >> >> >> >>>>> "Terrell Prud? Jr." 9/22/2008 1:32 pm >>>>> >>>>> >>>>> >> Will Hatch wrote: >> >> >>> Does 5.0EL have all of the educational software added to it? Is it >>> >>> >> an >> >> >>> upgrade, or do I need to do a fresh install? >>> >>> >>> >> Red Hat states that you *can* do an in-place upgrade, but that even >> they >> recommend a fresh install. That's what I do. Matter of fact, just >> last >> week, I finally upgraded my home server (also a single-NIC system) >> > from > >> 4.2EL to 5.0EL via a fresh install. >> >> And yes, 5.0EL does indeed have all the educational software on it. >> > > >> That's the point of K12LTSP. :-) Anything that you see that you >> > need, > >> just "yum install" it, or use YumEx (I like YumEx). >> >> --TP >> >> _______________________________________________ >> K12OSN mailing list >> K12OSN at redhat.com >> https://www.redhat.com/mailman/listinfo/k12osn >> For more info see >> >> >> *********************************** >> PRIVILEGED AND CONFIDENTIAL: This communication, including >> > attachments, > >> is for the exclusive use of addressee and may contain proprietary, >> confidential or privileged information. If you are not the intended >> recipient, any use, copying, disclosure, dissemination or >> > distribution > >> is strictly prohibited. If you're not the intended recipient, please >> notify the sender immediately by return email and delete this >> communication and destroy all copies. >> It is the policy of ANWSU not to discriminate on the basis or race, >> color, religion, national origin, gender, disability, or gender >> orientation in its educational programs or activities, or in its >> employment policies as required by Title IX of the 1972 Educational >> Amendments, by Section 504 of the Rehabilitation Act of 1973, by >> > Title > >> VI of the Civil Rights Act of 1964, and by Vermont State Law. >> >> _______________________________________________ >> K12OSN mailing list >> K12OSN at redhat.com >> https://www.redhat.com/mailman/listinfo/k12osn >> For more info see >> >> > > > *********************************** > PRIVILEGED AND CONFIDENTIAL: This communication, including attachments, > is for the exclusive use of addressee and may contain proprietary, > confidential or privileged information. If you are not the intended > recipient, any use, copying, disclosure, dissemination or distribution > is strictly prohibited. If you're not the intended recipient, please > notify the sender immediately by return email and delete this > communication and destroy all copies. > It is the policy of ANWSU not to discriminate on the basis or race, > color, religion, national origin, gender, disability, or gender > orientation in its educational programs or activities, or in its > employment policies as required by Title IX of the 1972 Educational > Amendments, by Section 504 of the Rehabilitation Act of 1973, by Title > VI of the Civil Rights Act of 1964, and by Vermont State Law. > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > -------------- next part -------------- An HTML attachment was scrubbed... URL: From brian at portsmouth-college.ac.uk Tue Sep 23 11:09:37 2008 From: brian at portsmouth-college.ac.uk (Brian Chivers) Date: Tue, 23 Sep 2008 12:09:37 +0100 Subject: [K12OSN] Using ltspinfo to shutdown clients Message-ID: <48D8CE71.5040502@portsmouth-college.ac.uk> I was about to start writing a script to run on the server to shutdown all our clients at the end of the day using ltspinfo but I thought I'd ask people what they are doing for this. Also if any one would like to share there scripts I'd be very appreciative so I don't have to start from scratch :-) Thanks Brian Chivers Portsmouth College ------------------------------------------------------------------------------------------------ The views expressed here are my own and not necessarily the views of Portsmouth College From rob.owens at biochemfluidics.com Tue Sep 23 12:18:11 2008 From: rob.owens at biochemfluidics.com (Rob Owens) Date: Tue, 23 Sep 2008 08:18:11 -0400 Subject: [K12OSN] 1 nic k12ltsp 6.0 In-Reply-To: <48D878DD.8060905@cmosnetworks.com> References: <48D764BC.0948.00D4.0@anwsu.org> <48D7AE39.5040501@cmosnetworks.com> <48D785CD.0948.00D4.0@anwsu.org><48D785CD.0948.00D4.0@anwsu.org> <48D7D695.800@cmosnetworks.com> <48D7A041.0948.00D4.0@anwsu.org><48D7A041.0948.00D4.0@anwsu.org> <48D7E0DB.6030209@cmosnetworks.com> <48D7B56D.0948.00D4.0@anwsu.org> <48D878DD.8060905@cmosnetworks.com> Message-ID: <48D8DE83.4060504@biochemfluidics.com> I just tried Xming and I was able to do a full graphical login on a Debian Lenny server, but not my K12LTSP 5.0EL server. On the K12 server, I got my GDM screen and logged in, but it gave me a black screen with a mouse pointer. (not very useful). I was able to run a single remote application (I tested with gedit) on both servers using Xming. Here's what I did. I installed Xming, Xming-fonts, and then Xming-mesa (I don't know what the difference is between Xming and Xming-mesa, but it didn't work until I installed Xming-mesa. I suspect you're supposed to install either Xming or Xming-mesa, but I'm not sure). I accepted all the defaults. Start, Programs, Xming, XLaunch To run a single application: "Multiple Windows", "Start a Program", enter a program name (maybe gedit or firefox or something), "Using PuTTY", enter your server name, user name, and password, then finish. -or- To run GDM and full desktop login: "One window" or "Fullscreen", "Open session via XDMCP", enter your server name -Rob Terrell Prud? Jr. wrote: > This has nothing to do with GNOME or KDE. Rather, it has everything to > do with the fact that you're using an XDMCP-compatible display manager. > For example, I use the KDM display manager (I just like its look > better) and choose the GNOME, XFce, or KDE (or even FVWM at times) > desktops as I please. Depends on my mood that day. > > Assuming that you're using GDM, note that XDMCP's already turned on, > since your thin clients work. Do make sure you're using this "Xming" > correctly, though. I don't use MS Windows, so I won't be much help > there (anybody else out there doing this?). But that's where I'd check > first. Maybe there's a config setting somewhere in it. > > If you want a second check to verify that your XDMCP's working, then > take a GNU/Linux or BSD box (or Solaris or anything else with X11), > start it without the GUI (that's runlevel 3 in RedHat/Fedora, runlevel 2 > in Debian), and do an XDMCP query manually. You'd do it like this: > > X -query w.x.y.z > > where w.x.y.z is the IP address of your K12LTSP server. If that works, > then the issue is with Xming. > > --TP > _______________________________ > Do you GNU ? > Microsoft Free since 2003 --the ultimate > antivirus protection! > > > Will Hatch wrote: >> I followed those instructions, but no luck. I am using Gnome, not KDE. >> Are there similar config files for Gnome? >> >> >>>>> "Terrell Prud? Jr." 9/22/2008 2:15 pm >>>>> >>>>> >> Two minutes of Googling yielded this link (hint hint). This guy's >> doing >> Xming logins to Linux boxes. Might help in your case. >> >> >> http://it.toolbox.com/blogs/locutus/linux-login-with-a-windows-box-and-xdmcp-15547 >> >> >> --TP >> _______________________________ >> Do you GNU ? >> Microsoft Free since 2003 --the ultimate >> antivirus protection! >> >> >> Will Hatch wrote: >> >>> I installed xming to my Windows XP Pro workstation, and everything >>> seemed to install correctly. I have two icons on the desktop; xming >>> >> and >> >>> xlaunch. When I start xlaunch it prompts me to connect to a server. >>> >> >> >>> I'm typing in the ip address of my k12ltsp server, but nothing >>> >> happens. >> >>> Is this a firewall or selinux issue on my k12 box? Do I have to tell >>> >> my >> >>> k12 box to accept remote logins? >>> >>> >>> >>>>>> "Terrell Prud? Jr." 9/22/2008 1:32 pm >>>>>> >>>>>> >>>>>> >>> Will Hatch wrote: >>> >>> >>>> Does 5.0EL have all of the educational software added to it? Is it >>>> >>>> >>> an >>> >>> >>>> upgrade, or do I need to do a fresh install? >>>> >>>> >>>> >>> Red Hat states that you *can* do an in-place upgrade, but that even >>> they >>> recommend a fresh install. That's what I do. Matter of fact, just >>> last >>> week, I finally upgraded my home server (also a single-NIC system) >>> >> from >> >>> 4.2EL to 5.0EL via a fresh install. >>> >>> And yes, 5.0EL does indeed have all the educational software on it. >>> >> >> >>> That's the point of K12LTSP. :-) Anything that you see that you >>> >> need, >> >>> just "yum install" it, or use YumEx (I like YumEx). >>> >>> --TP >>> >>> _______________________________________________ >>> K12OSN mailing list >>> K12OSN at redhat.com >>> https://www.redhat.com/mailman/listinfo/k12osn >>> For more info see >>> >>> >>> *********************************** >>> PRIVILEGED AND CONFIDENTIAL: This communication, including >>> >> attachments, >> >>> is for the exclusive use of addressee and may contain proprietary, >>> confidential or privileged information. If you are not the intended >>> recipient, any use, copying, disclosure, dissemination or >>> >> distribution >> >>> is strictly prohibited. If you're not the intended recipient, please >>> notify the sender immediately by return email and delete this >>> communication and destroy all copies. >>> It is the policy of ANWSU not to discriminate on the basis or race, >>> color, religion, national origin, gender, disability, or gender >>> orientation in its educational programs or activities, or in its >>> employment policies as required by Title IX of the 1972 Educational >>> Amendments, by Section 504 of the Rehabilitation Act of 1973, by >>> >> Title >> >>> VI of the Civil Rights Act of 1964, and by Vermont State Law. >>> >>> _______________________________________________ >>> K12OSN mailing list >>> K12OSN at redhat.com >>> https://www.redhat.com/mailman/listinfo/k12osn >>> For more info see >>> >>> >> >> >> *********************************** >> PRIVILEGED AND CONFIDENTIAL: This communication, including attachments, >> is for the exclusive use of addressee and may contain proprietary, >> confidential or privileged information. If you are not the intended >> recipient, any use, copying, disclosure, dissemination or distribution >> is strictly prohibited. If you're not the intended recipient, please >> notify the sender immediately by return email and delete this >> communication and destroy all copies. >> It is the policy of ANWSU not to discriminate on the basis or race, >> color, religion, national origin, gender, disability, or gender >> orientation in its educational programs or activities, or in its >> employment policies as required by Title IX of the 1972 Educational >> Amendments, by Section 504 of the Rehabilitation Act of 1973, by Title >> VI of the Civil Rights Act of 1964, and by Vermont State Law. >> >> _______________________________________________ >> K12OSN mailing list >> K12OSN at redhat.com >> https://www.redhat.com/mailman/listinfo/k12osn >> For more info see >> > > ------------------------------------------------------------------------ > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** From micha at arava.co.il Tue Sep 23 12:18:29 2008 From: micha at arava.co.il (Micha Silver) Date: Tue, 23 Sep 2008 15:18:29 +0300 Subject: [K12OSN] still banging my head against Ubuntu 8 authenticating against LDAP In-Reply-To: <48D830CA.4010100@snarlnet.com> References: <48D830CA.4010100@snarlnet.com> Message-ID: <48D8DE95.7070301@arava.co.il> Carl Keil wrote: > So, > > When I run "ldapsearch 10.0.1.252 domain.com -x" on the LDAP server, I > get a list of all the people in the LDAP database. When I run the > same search from the client I get a message saying that it can't > contact the LDAP server. I've dropped the firewall on the server and > I can ping the server. > Anyone have any idea what the problem could be? How do you tell LDAP > to listen to outside ports? > As far as I know, two things will block access to an ldap server. 1- Either the firewall is not allowing traffic in on port 389 . This you can check with iptables -nvL. You should see a line ACCEPTing packets from whoever should be able to query the ldap server. (I'm not sure what you mean by "dropped the firewall..." ?) or 2- Access limited by "access" rules in your slapd.conf file (/etc/openldap/slapd.conf). The default, if there are no access rules, is to allow everyone read access, and only the root user to write. > Thanks, > > ck > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > > > > This mail was received via Mail-SeCure System. > > -- Micha Silver Arava Development Co +972-8-6592270 From peter at scheie.homedns.org Tue Sep 23 13:10:21 2008 From: peter at scheie.homedns.org (Peter Scheie) Date: Tue, 23 Sep 2008 08:10:21 -0500 Subject: [K12OSN] Using ltspinfo to shutdown clients In-Reply-To: <48D8CE71.5040502@portsmouth-college.ac.uk> References: <48D8CE71.5040502@portsmouth-college.ac.uk> Message-ID: <48D8EABD.7000101@scheie.homedns.org> Brian, I've written some scripts like this. Usually, I put an icon on the teacher's desktop to call it, and then tell the teacher to click on it at the end of the day. I think I've got a copy of the script on my test box at home; I'll look for it tonight and post it if I find it. Peter Brian Chivers wrote: > I was about to start writing a script to run on the server to shutdown > all our clients at the end of the day using ltspinfo but I thought I'd > ask people what they are doing for this. > > Also if any one would like to share there scripts I'd be very > appreciative so I don't have to start from scratch :-) > > Thanks > Brian Chivers > Portsmouth College > > ------------------------------------------------------------------------------------------------ > > The views expressed here are my own and not necessarily > > the views of Portsmouth College > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > From rob.owens at biochemfluidics.com Tue Sep 23 14:11:15 2008 From: rob.owens at biochemfluidics.com (Rob Owens) Date: Tue, 23 Sep 2008 10:11:15 -0400 Subject: [K12OSN] OT: GUI for applying "stamp" to PDF files Message-ID: <48D8F903.3010709@biochemfluidics.com> I need to be able to take an existing PDF file and apply a "stamp" to it. Specifically, it needs to say "OBSOLETE" across a PDF drawing. I can do it with ImageMagick, but I need some kind of a GUI to make it easy for non-technical users. Ideally it would be drag-and-drop and work under both Linux and Windows, but I'll take what I can get. Does anybody know of an existing Free tool that does this? If nothing exists, is there anybody on the list willing to code one for a fee? Thanks for your help. -Rob ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** From nils at breun.nl Tue Sep 23 14:52:31 2008 From: nils at breun.nl (Nils Breunese) Date: Tue, 23 Sep 2008 16:52:31 +0200 Subject: [K12OSN] OT: GUI for applying "stamp" to PDF files In-Reply-To: <48D8F903.3010709@biochemfluidics.com> References: <48D8F903.3010709@biochemfluidics.com> Message-ID: <88EDF2E2-64A7-4077-9BA3-CA0EA0749037@breun.nl> Rob Owens wrote: > I need to be able to take an existing PDF file and apply a "stamp" to > it. Specifically, it needs to say "OBSOLETE" across a PDF drawing. I > can do it with ImageMagick, but I need some kind of a GUI to make it > easy for non-technical users. Ideally it would be drag-and-drop and > work under both Linux and Windows, but I'll take what I can get. > > Does anybody know of an existing Free tool that does this? If nothing > exists, is there anybody on the list willing to code one for a fee? Check out zenity. I believe you can use it with its --file-selection flag to display a file dialog to the user and use the result to run your ImageMagick command on the selected file. yum install zenity man zenity Nils Breunese. From rob.owens at biochemfluidics.com Tue Sep 23 14:58:27 2008 From: rob.owens at biochemfluidics.com (Rob Owens) Date: Tue, 23 Sep 2008 10:58:27 -0400 Subject: [K12OSN] OT: GUI for applying "stamp" to PDF files In-Reply-To: <88EDF2E2-64A7-4077-9BA3-CA0EA0749037@breun.nl> References: <48D8F903.3010709@biochemfluidics.com> <88EDF2E2-64A7-4077-9BA3-CA0EA0749037@breun.nl> Message-ID: <48D90413.4000808@biochemfluidics.com> Nils Breunese wrote: > Rob Owens wrote: > >> I need to be able to take an existing PDF file and apply a "stamp" to >> it. Specifically, it needs to say "OBSOLETE" across a PDF drawing. I >> can do it with ImageMagick, but I need some kind of a GUI to make it >> easy for non-technical users. Ideally it would be drag-and-drop and >> work under both Linux and Windows, but I'll take what I can get. >> >> Does anybody know of an existing Free tool that does this? If nothing >> exists, is there anybody on the list willing to code one for a fee? > > Check out zenity. I believe you can use it with its --file-selection > flag to display a file dialog to the user and use the result to run your > ImageMagick command on the selected file. > > yum install zenity > man zenity > Thanks for the advice! -Rob ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** From dahopkins429 at gmail.com Tue Sep 23 15:25:53 2008 From: dahopkins429 at gmail.com (David Hopkins) Date: Tue, 23 Sep 2008 11:25:53 -0400 Subject: [K12OSN] OT: GUI for applying "stamp" to PDF files In-Reply-To: <48D90413.4000808@biochemfluidics.com> References: <48D8F903.3010709@biochemfluidics.com> <88EDF2E2-64A7-4077-9BA3-CA0EA0749037@breun.nl> <48D90413.4000808@biochemfluidics.com> Message-ID: Also check out PDFTK http://portableapps.com/apps/office/pdftk_builder_portable which can run from a usb stick. On Tue, Sep 23, 2008 at 10:58 AM, Rob Owens wrote: > Nils Breunese wrote: >> Rob Owens wrote: >> >>> I need to be able to take an existing PDF file and apply a "stamp" to >>> it. Specifically, it needs to say "OBSOLETE" across a PDF drawing. I >>> can do it with ImageMagick, but I need some kind of a GUI to make it >>> easy for non-technical users. Ideally it would be drag-and-drop and >>> work under both Linux and Windows, but I'll take what I can get. >>> >>> Does anybody know of an existing Free tool that does this? If nothing >>> exists, is there anybody on the list willing to code one for a fee? >> >> Check out zenity. I believe you can use it with its --file-selection >> flag to display a file dialog to the user and use the result to run your >> ImageMagick command on the selected file. >> >> yum install zenity >> man zenity >> > Thanks for the advice! > > -Rob > ******************************************************** > > The information transmitted is intended only for the person or entity to > which it is addressed and may contain confidential and/or privileged > material. If you are not the addressee, any disclosure, reproduction, > copying, distribution, or other dissemination or use of this transmission in > error please notify the sender immediately and then delete this e-mail. > E-mail transmission cannot be guaranteed to be secure or error free as > information could be intercepted, corrupted lost, destroyed, arrive late or > incomplete, or contain viruses. > The sender therefore does not accept liability for any errors or omissions > in the contents of this message which arise as a result of e-mail > transmission. If verification is required please request a hard copy > version. > > ******************************************************** > > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > From nils at breun.nl Tue Sep 23 15:55:29 2008 From: nils at breun.nl (Nils Breunese) Date: Tue, 23 Sep 2008 17:55:29 +0200 Subject: [K12OSN] OT: GUI for applying "stamp" to PDF files In-Reply-To: References: <48D8F903.3010709@biochemfluidics.com> <88EDF2E2-64A7-4077-9BA3-CA0EA0749037@breun.nl> <48D90413.4000808@biochemfluidics.com> Message-ID: <81EFC6D9-D674-4D42-B242-57E14F0991B1@breun.nl> David Hopkins wrote: > Also check out PDFTK > http://portableapps.com/apps/office/pdftk_builder_portable which can > run from a usb stick. Or just the regular pdftk: http://www.pdfhacks.com/pdftk/ Seems like you can just run 'yum install pdftk'. Nils Breunese. From rob.owens at biochemfluidics.com Tue Sep 23 17:05:43 2008 From: rob.owens at biochemfluidics.com (Rob Owens) Date: Tue, 23 Sep 2008 13:05:43 -0400 Subject: [K12OSN] OT: GUI for applying "stamp" to PDF files In-Reply-To: References: <48D8F903.3010709@biochemfluidics.com> <88EDF2E2-64A7-4077-9BA3-CA0EA0749037@breun.nl> <48D90413.4000808@biochemfluidics.com> Message-ID: <48D921E7.10009@biochemfluidics.com> another nice one! Thanks David Hopkins wrote: > Also check out PDFTK > http://portableapps.com/apps/office/pdftk_builder_portable which can > run from a usb stick. > > On Tue, Sep 23, 2008 at 10:58 AM, Rob Owens > wrote: >> Nils Breunese wrote: >>> Rob Owens wrote: >>> >>>> I need to be able to take an existing PDF file and apply a "stamp" to >>>> it. Specifically, it needs to say "OBSOLETE" across a PDF drawing. I >>>> can do it with ImageMagick, but I need some kind of a GUI to make it >>>> easy for non-technical users. Ideally it would be drag-and-drop and >>>> work under both Linux and Windows, but I'll take what I can get. >>>> >>>> Does anybody know of an existing Free tool that does this? If nothing >>>> exists, is there anybody on the list willing to code one for a fee? >>> Check out zenity. I believe you can use it with its --file-selection >>> flag to display a file dialog to the user and use the result to run your >>> ImageMagick command on the selected file. >>> >>> yum install zenity >>> man zenity >>> >> Thanks for the advice! >> >> -Rob >> ******************************************************** >> >> The information transmitted is intended only for the person or entity to >> which it is addressed and may contain confidential and/or privileged >> material. If you are not the addressee, any disclosure, reproduction, >> copying, distribution, or other dissemination or use of this transmission in >> error please notify the sender immediately and then delete this e-mail. >> E-mail transmission cannot be guaranteed to be secure or error free as >> information could be intercepted, corrupted lost, destroyed, arrive late or >> incomplete, or contain viruses. >> The sender therefore does not accept liability for any errors or omissions >> in the contents of this message which arise as a result of e-mail >> transmission. If verification is required please request a hard copy >> version. >> >> ******************************************************** >> >> >> _______________________________________________ >> K12OSN mailing list >> K12OSN at redhat.com >> https://www.redhat.com/mailman/listinfo/k12osn >> For more info see >> > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** From julius at turtle.com Tue Sep 23 17:30:34 2008 From: julius at turtle.com (Julius Szelagiewicz) Date: Tue, 23 Sep 2008 13:30:34 -0400 (EDT) Subject: [K12OSN] OT: GUI for applying "stamp" to PDF files In-Reply-To: <48D8F903.3010709@biochemfluidics.com> Message-ID: On Tue, 23 Sep 2008, Rob Owens wrote: > I need to be able to take an existing PDF file and apply a "stamp" to > it. Specifically, it needs to say "OBSOLETE" across a PDF drawing. I > can do it with ImageMagick, but I need some kind of a GUI to make it > easy for non-technical users. Ideally it would be drag-and-drop and > work under both Linux and Windows, but I'll take what I can get. > > Does anybody know of an existing Free tool that does this? If nothing > exists, is there anybody on the list willing to code one for a fee? > > Thanks for your help. Rob, try xournal. julius From ckollars9 at yahoo.com Tue Sep 23 17:45:49 2008 From: ckollars9 at yahoo.com (Chuck Kollars) Date: Tue, 23 Sep 2008 10:45:49 -0700 (PDT) Subject: [K12OSN] 1 nic k12ltsp 6.0 Message-ID: <979950.62302.qm@web65604.mail.ac4.yahoo.com> > ... The reason that GNU/Linux or *BSD boxes are so much easier here is > that they generally come with X11 servers, ... ^^^^^^^ Yep, that's not a typo. In the X11 world the end with a screen you look at is the "server" and the end that invisibly produces the data is the "client". If you look at the internals and consult a dictionary this terminology is "correct", but it's probably opposite to how you're used to thinking about pragmatic issues. In X11-land, the "server" is the terminal, not the thing in the back room. > ... I'd suggest Googling for "XDM" and "MS Windows" or something > along those lines. That'll probably turn up an XDMCP-supporting X11 > server. Hummingbird used to make an X11 server for Win32, but I don't > know if they still do. ... Also try simply Googling for "Windows X|X11 server". There's currently at least one freebie package that works reasonably well, it seems that either Hummingbird or its successor still sells this software, and altogether there are a whole handful of choices. > ... Avoid getting too many clients connecting this way, as they > extract a greater load ... Yep, this sort of client transfers complex graphics (not simple circles or squares) bit by bit, and so can produce a very heavy load on your network and use lots of buffering RAM on the other end. thanks! -Chuck Kollars From rob.owens at biochemfluidics.com Tue Sep 23 19:06:38 2008 From: rob.owens at biochemfluidics.com (Rob Owens) Date: Tue, 23 Sep 2008 15:06:38 -0400 Subject: [K12OSN] OT: bash scripting - check for permissions, check for existence of file in directory tree Message-ID: <48D93E3E.9040905@biochemfluidics.com> I know there are a lot of seasoned bash scripters on this list, so here goes. 1) I need to check if the user running the script has sufficient permissions to write to a certain directory. 2) I need to check for the existence of a file somewhere in a directory tree (with lots of subdirectories). I can think of some rather convoluted ways of achieving these two tasks, but I'm sure somebody here knows a better way. Thanks in advance for your suggestions. -Rob ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** From nils at breun.nl Tue Sep 23 19:15:24 2008 From: nils at breun.nl (Nils Breunese) Date: Tue, 23 Sep 2008 21:15:24 +0200 Subject: [K12OSN] OT: bash scripting - check for permissions, check for existence of file in directory tree In-Reply-To: <48D93E3E.9040905@biochemfluidics.com> References: <48D93E3E.9040905@biochemfluidics.com> Message-ID: <9CC1851E-744E-4B63-BEF7-F9631CDA2C8B@breun.nl> Rob Owens wrote: > I know there are a lot of seasoned bash scripters on this list, so > here > goes. > > 1) I need to check if the user running the script has sufficient > permissions to write to a certain directory. ---- if [ -w directory ] then fi ---- > 2) I need to check for the existence of a file somewhere in a > directory > tree (with lots of subdirectories). ---- find -name ---- Nils Breunese. From opensource at whitenitro.com Tue Sep 23 22:22:53 2008 From: opensource at whitenitro.com (Bryant Patten) Date: Tue, 23 Sep 2008 18:22:53 -0400 Subject: [K12OSN] 2008 FOSS and K-12 Education Awards Message-ID: <1BF7EBB4-D21C-422A-8B80-7BB1A833ED49@whitenitro.com> The National Center for Open Source and Education (NCOSE) announces the winners of the * 2008 FOSS & K-12 Education Awards * The NCOSE FOSS and K-12 Education Awards are given as expressions of appreciation for the hard work and dedication of individuals who contribute immense amounts of their time and expertise to advancing the use of Open Source solutions in K-12 schools. In its inagural year, the Center has chosen individuals from all across the continent that have made an extraordinary contribution to Free and Open Source Software use in the field of K-12 education. 2008 Recipients Robert Arkiletian - Fl_TeacherTool Eric Harrison - K12LTSP Daniel Howard - GOSEF Paul Nelson - K12LTSP David Trask - NELS/FOSSED This year's awards will be presented to the recipients at the Open Minds Conference ( http://www.k12openminds.org/ )in Indianapolis, (USA) on Sept. 26th, 2008. The awards are being underwritten, in part, by Resara, an Open Source Educational Platform ( http:// www.resara.com/ ). (For more information about the awards and biographies of the recipients, go to the NCOSE website (http://www.ncose.org). From timlegge at gmail.com Wed Sep 24 01:05:57 2008 From: timlegge at gmail.com (Timothy Legge) Date: Tue, 23 Sep 2008 22:05:57 -0300 Subject: [K12OSN] School Server In-Reply-To: <48D0ECB9.30704@biochemfluidics.com> References: <48D0C80C.4030306@arava.co.il> <48D0ECB9.30704@biochemfluidics.com> Message-ID: On Wed, Sep 17, 2008 at 8:40 AM, Rob Owens wrote: > I also agree with Terrell that you don't necessarily need server > hardware. I have a desktop-class whitebox computer that serves about 16 > clients right now. Here's my recommendation for a budget LTSP server: > I have gone the desktop route in the past and it is workable but is not as scalable as some of the server class machines. I have pretty much decided on the following: Quad Core Intel(R) Xeon 2.0GHz, 1333MHz FSB Memory 4GB Hard Drive Mirrored 146GB, 3Gbps, SAS, 3.5 inch, 15K RPM Hard Drive Network Adapter Dual Embedded Broadcom Gigabit Ethernet NIC My only concern is whether the SAS drives will be supported. Any thoughts? Tim From sbarar at gmail.com Wed Sep 24 01:43:38 2008 From: sbarar at gmail.com (Sudev Barar) Date: Wed, 24 Sep 2008 07:13:38 +0530 Subject: [K12OSN] 2008 FOSS and K-12 Education Awards In-Reply-To: <1BF7EBB4-D21C-422A-8B80-7BB1A833ED49@whitenitro.com> References: <1BF7EBB4-D21C-422A-8B80-7BB1A833ED49@whitenitro.com> Message-ID: <774593a20809231843t4d40265dm35488362a70fe3bf@mail.gmail.com> 2008/9/24 Bryant Patten : > * 2008 FOSS & K-12 Education Awards * > 2008 Recipients > > Robert Arkiletian - Fl_TeacherTool > > Eric Harrison - K12LTSP > > Daniel Howard - GOSEF > > Paul Nelson - K12LTSP > > David Trask - NELS/FOSSED Truly well deserved appreciation for unstinting work by them. Kudos. -- Regards, Sudev Barar Read http://blog.sudev.in for topics ranging from here to there. PS: I know most of people do not follow email niceties (mostly they are not aware) but if you follow bottom post/in-line post style of email conversations it becomes a whole lot easier to carry on meaningful dialogue and you can snip out what is not meaningful too. Most people just hit reply button and top post leaving prior message appended uselessly at bottom. See if you can adopt this style and persuade others. In case you are already doing this ..... great, spread the message. From jkinney at localnetsolutions.com Wed Sep 24 02:35:33 2008 From: jkinney at localnetsolutions.com (James P. Kinney III) Date: Tue, 23 Sep 2008 22:35:33 -0400 Subject: [K12OSN] School Server In-Reply-To: References: <48D0C80C.4030306@arava.co.il> <48D0ECB9.30704@biochemfluidics.com> Message-ID: <1222223733.3989.9.camel@merlin.localnetsolutions.com> > I have pretty much decided on the following: > > Quad Core Intel(R) Xeon 2.0GHz, 1333MHz FSB > Memory 4GB > Hard Drive Mirrored 146GB, 3Gbps, SAS, 3.5 inch, 15K RPM Hard Drive > Network Adapter Dual Embedded Broadcom Gigabit Ethernet NIC > > My only concern is whether the SAS drives will be supported. Any thoughts? > > Tim SAS is well supported (shows up as SCSI drives). I recommend changing from Intel to Opteron as LSTP is very memory intensive and Opteron kicks the teeth out of Intel for memory intensive operations. That on-chip memory controller cuts 2 clock cycles out of a fetch process. -- James P. Kinney III CEO & Director of Engineering Local Net Solutions,LLC http://www.localnetsolutions.com GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics) Fingerprint = 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7 -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. From mrjohnlucas at gmail.com Wed Sep 24 03:06:34 2008 From: mrjohnlucas at gmail.com (John Lucas) Date: Tue, 23 Sep 2008 23:06:34 -0400 Subject: [K12OSN] still banging my head against Ubuntu 8 authenticating against LDAP In-Reply-To: <48D8DE95.7070301@arava.co.il> References: <48D830CA.4010100@snarlnet.com> <48D8DE95.7070301@arava.co.il> Message-ID: <48D9AEBA.7040609@gmail.com> Micha Silver wrote: > Carl Keil wrote: >> So, >> >> When I run "ldapsearch 10.0.1.252 domain.com -x" on the LDAP server, I >> get a list of all the people in the LDAP database. When I run the >> same search from the client I get a message saying that it can't >> contact the LDAP server. I've dropped the firewall on the server and >> I can ping the server. >> Anyone have any idea what the problem could be? How do you tell LDAP >> to listen to outside ports? >> > As far as I know, two things will block access to an ldap server. > 1- Either the firewall is not allowing traffic in on port 389 . This you > can check with iptables -nvL. You should see a line ACCEPTing packets > from whoever should be able to query the ldap server. (I'm not sure what > you mean by "dropped the firewall..." ?) > or > 2- Access limited by "access" rules in your slapd.conf file > (/etc/openldap/slapd.conf). The default, if there are no access rules, > is to allow everyone read access, and only the root user to write. > You might also make sure that there is an "ldap" stanza allowing access in /etc/hosts.allow. -- "History doesn't repeat itself; at best it rhymes." - Mark Twain | John Lucas MrJohnLucas at gmail.com | | St. Thomas, VI 00802 http://mrjohnlucas.googlepages.com/ | | 18.3?N, 65?W AST (UTC-4) | From timlegge at gmail.com Wed Sep 24 10:47:51 2008 From: timlegge at gmail.com (Timothy Legge) Date: Wed, 24 Sep 2008 07:47:51 -0300 Subject: [K12OSN] School Server In-Reply-To: <1222223733.3989.9.camel@merlin.localnetsolutions.com> References: <48D0C80C.4030306@arava.co.il> <48D0ECB9.30704@biochemfluidics.com> <1222223733.3989.9.camel@merlin.localnetsolutions.com> Message-ID: On Tue, Sep 23, 2008 at 11:35 PM, James P. Kinney III wrote: > >> I have pretty much decided on the following: >> >> Quad Core Intel(R) Xeon 2.0GHz, 1333MHz FSB >> Memory 4GB >> Hard Drive Mirrored 146GB, 3Gbps, SAS, 3.5 inch, 15K RPM Hard Drive >> Network Adapter Dual Embedded Broadcom Gigabit Ethernet NIC >> >> My only concern is whether the SAS drives will be supported. Any thoughts? >> >> Tim > SAS is well supported (shows up as SCSI drives). I recommend changing > from Intel to Opteron as LSTP is very memory intensive and Opteron kicks > the teeth out of Intel for memory intensive operations. That on-chip > memory controller cuts 2 clock cycles out of a fetch process. I considered Opterons but for some reason I could only configure dual cores on dells web site. I will review that again... Tim From rob.owens at biochemfluidics.com Wed Sep 24 11:13:30 2008 From: rob.owens at biochemfluidics.com (Rob Owens) Date: Wed, 24 Sep 2008 07:13:30 -0400 Subject: [K12OSN] still banging my head against Ubuntu 8 authenticating against LDAP In-Reply-To: <48D9AEBA.7040609@gmail.com> References: <48D830CA.4010100@snarlnet.com> <48D8DE95.7070301@arava.co.il> <48D9AEBA.7040609@gmail.com> Message-ID: <48DA20DA.9040206@biochemfluidics.com> John Lucas wrote: > Micha Silver wrote: >> Carl Keil wrote: >>> So, >>> >>> When I run "ldapsearch 10.0.1.252 domain.com -x" on the LDAP server, >>> I get a list of all the people in the LDAP database. When I run the >>> same search from the client I get a message saying that it can't >>> contact the LDAP server. I've dropped the firewall on the server and >>> I can ping the server. >>> Anyone have any idea what the problem could be? How do you tell LDAP >>> to listen to outside ports? >>> >> As far as I know, two things will block access to an ldap server. >> 1- Either the firewall is not allowing traffic in on port 389 . This >> you can check with iptables -nvL. You should see a line ACCEPTing >> packets from whoever should be able to query the ldap server. (I'm not >> sure what you mean by "dropped the firewall..." ?) >> or >> 2- Access limited by "access" rules in your slapd.conf file >> (/etc/openldap/slapd.conf). The default, if there are no access rules, >> is to allow everyone read access, and only the root user to write. >> > > You might also make sure that there is an "ldap" stanza allowing access > in /etc/hosts.allow. > It could also be that your /etc/ldap.conf (or /etc/ldap/ldap.conf) file is screwed up. It could also be that there's a certificate problem. Post your config files and maybe someone can pick out an error. -Rob ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** From rob.owens at biochemfluidics.com Wed Sep 24 11:17:58 2008 From: rob.owens at biochemfluidics.com (Rob Owens) Date: Wed, 24 Sep 2008 07:17:58 -0400 Subject: [K12OSN] OT: bash scripting - check for permissions, check for existence of file in directory tree In-Reply-To: <9CC1851E-744E-4B63-BEF7-F9631CDA2C8B@breun.nl> References: <48D93E3E.9040905@biochemfluidics.com> <9CC1851E-744E-4B63-BEF7-F9631CDA2C8B@breun.nl> Message-ID: <48DA21E6.4070806@biochemfluidics.com> Nils Breunese wrote: > Rob Owens wrote: > >> I know there are a lot of seasoned bash scripters on this list, so here >> goes. >> >> 1) I need to check if the user running the script has sufficient >> permissions to write to a certain directory. > > ---- > if [ -w directory ] > then > > fi > ---- > Thanks, just what I needed. >> 2) I need to check for the existence of a file somewhere in a directory >> tree (with lots of subdirectories). > > ---- > find -name > ---- > I thought of that, but suspected there might be a better way. Guess I was wrong. Thanks for helping. -Rob ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** From nils at breun.nl Wed Sep 24 11:30:34 2008 From: nils at breun.nl (Nils Breunese) Date: Wed, 24 Sep 2008 13:30:34 +0200 Subject: [K12OSN] OT: bash scripting - check for permissions, check for existence of file in directory tree In-Reply-To: <48DA21E6.4070806@biochemfluidics.com> References: <48D93E3E.9040905@biochemfluidics.com> <9CC1851E-744E-4B63-BEF7-F9631CDA2C8B@breun.nl> <48DA21E6.4070806@biochemfluidics.com> Message-ID: Rob Owens wrote: > Nils Breunese wrote: >> Rob Owens wrote: >> >>> 2) I need to check for the existence of a file somewhere in a >>> directory >>> tree (with lots of subdirectories). >> >> ---- >> find -name >> ---- >> > I thought of that, but suspected there might be a better way. Guess I > was wrong. Better in what way? Nils Breunese. From rob.owens at biochemfluidics.com Wed Sep 24 11:49:42 2008 From: rob.owens at biochemfluidics.com (Rob Owens) Date: Wed, 24 Sep 2008 07:49:42 -0400 Subject: [K12OSN] OT: bash scripting - check for permissions, check for existence of file in directory tree In-Reply-To: References: <48D93E3E.9040905@biochemfluidics.com> <9CC1851E-744E-4B63-BEF7-F9631CDA2C8B@breun.nl> <48DA21E6.4070806@biochemfluidics.com> Message-ID: <48DA2956.6000506@biochemfluidics.com> Nils Breunese wrote: > Rob Owens wrote: > >> Nils Breunese wrote: >>> Rob Owens wrote: >>> >>>> 2) I need to check for the existence of a file somewhere in a directory >>>> tree (with lots of subdirectories). >>> >>> ---- >>> find -name >>> ---- >>> >> I thought of that, but suspected there might be a better way. Guess I >> was wrong. > > Better in what way? > I'm not actually looking to find a file and output it, I need to perform some action if a file exists. Since I don't know where the file is, I guess I've got to find it first... I was hoping there would be a recursive way of doing: if [ -f $FILE ]; then (or some other one-liner). -Rob ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** From nils at breun.nl Wed Sep 24 12:10:02 2008 From: nils at breun.nl (Nils Breunese) Date: Wed, 24 Sep 2008 14:10:02 +0200 Subject: [K12OSN] OT: bash scripting - check for permissions, check for existence of file in directory tree In-Reply-To: <48DA2956.6000506@biochemfluidics.com> References: <48D93E3E.9040905@biochemfluidics.com> <9CC1851E-744E-4B63-BEF7-F9631CDA2C8B@breun.nl> <48DA21E6.4070806@biochemfluidics.com> <48DA2956.6000506@biochemfluidics.com> Message-ID: <746DA05D-8F5E-40DA-9CAB-A08F4DFDA894@breun.nl> Rob Owens wrote: > Nils Breunese wrote: >> Rob Owens wrote: >> >>> Nils Breunese wrote: >>>> Rob Owens wrote: >>>> >>>>> 2) I need to check for the existence of a file somewhere in a >>>>> directory >>>>> tree (with lots of subdirectories). >>>> >>>> ---- >>>> find -name >>>> ---- >>>> >>> I thought of that, but suspected there might be a better way. >>> Guess I >>> was wrong. >> >> Better in what way? >> > I'm not actually looking to find a file and output it, I need to > perform > some action if a file exists. Since I don't know where the file is, I > guess I've got to find it first... Then use the -exec option to find: find -name -exec \; Use {} as a placeholder for the filename if you want to use it in your action. Say you want to output the contents of the file to the screen: find -name -exec cat {} \; Nils Breunese. From timlegge at gmail.com Wed Sep 24 12:03:24 2008 From: timlegge at gmail.com (Timothy Legge) Date: Wed, 24 Sep 2008 09:03:24 -0300 Subject: [K12OSN] School Server In-Reply-To: References: <48D0C80C.4030306@arava.co.il> <48D0ECB9.30704@biochemfluidics.com> <1222223733.3989.9.camel@merlin.localnetsolutions.com> Message-ID: On Wed, Sep 24, 2008 at 7:47 AM, Timothy Legge wrote: >>> Tim >> SAS is well supported (shows up as SCSI drives). I recommend changing >> from Intel to Opteron as LSTP is very memory intensive and Opteron kicks >> the teeth out of Intel for memory intensive operations. That on-chip >> memory controller cuts 2 clock cycles out of a fetch process. > > I considered Opterons but for some reason I could only configure dual > cores on dells web site. I will review that again... Actually now that I think of it, I thought that the Intels had gotten the edge in the last year or so with the multicore. Tim From webmaster at vol.org Wed Sep 24 15:07:54 2008 From: webmaster at vol.org (george kocke) Date: Wed, 24 Sep 2008 10:07:54 -0500 Subject: [K12OSN] Using ltspinfo to shutdown clients In-Reply-To: <48D8CE71.5040502@portsmouth-college.ac.uk> References: <48D8CE71.5040502@portsmouth-college.ac.uk> Message-ID: <48DA57CA.2080700@vol.org> Brian Chivers wrote: > I was about to start writing a script to run on the server to shutdown > all our clients at the end of the day using ltspinfo but I thought I'd > ask people what they are doing for this. > Also if any one would like to share there scripts I'd be very > appreciative so I don't have to start from scratch :-) I wrote this script and call it from a cron job: #!/bin/bash # lounge machines /usr/bin/ltspinfo --host=lounge-a --shutdown /usr/bin/ltspinfo --host=lounge-b --shutdown /usr/bin/ltspinfo --host=lounge-c --shutdown # dhcp machines START=101 END=249 NETWORK="192.168.105." for i in `seq $START $END`; do IP="$NETWORK$i" X=`/usr/bin/ltspinfo --host=$IP --shutdown` echo "$IP: $X" done This message has been scanned by the Internet Service Departments Virus/Spam filter. From nadavkav at gmail.com Wed Sep 24 15:17:50 2008 From: nadavkav at gmail.com (Nadav Kavalerchik) Date: Wed, 24 Sep 2008 18:17:50 +0300 Subject: [K12OSN] 1 nic k12ltsp 6.0 In-Reply-To: <979950.62302.qm@web65604.mail.ac4.yahoo.com> References: <979950.62302.qm@web65604.mail.ac4.yahoo.com> Message-ID: <4219988b0809240817qc1ae911y8e15121abc844e88@mail.gmail.com> we use Xming to connect to k12ltsp (fc6) server from windows XP successfully ! i recommend it. btw, make use /etc/X11/xdm/Xaccess has access permissions to those windows (or other) machines ! otherwise, you will be rejected and no login :-( On Tue, Sep 23, 2008 at 8:45 PM, Chuck Kollars wrote: > > ... The reason that GNU/Linux or *BSD boxes are so much easier here is > > that they generally come with X11 servers, ... > ^^^^^^^ > Yep, that's not a typo. In the X11 world the end with a screen you look at > is the "server" and the end that invisibly produces the data is the > "client". If you look at the internals and consult a dictionary this > terminology is "correct", but it's probably opposite to how you're used to > thinking about pragmatic issues. In X11-land, the "server" is the terminal, > not the thing in the back room. > > > ... I'd suggest Googling for "XDM" and "MS Windows" or something > > along those lines. That'll probably turn up an XDMCP-supporting X11 > > server. Hummingbird used to make an X11 server for Win32, but I don't > > know if they still do. ... > > Also try simply Googling for "Windows X|X11 server". There's currently at > least one freebie package that works reasonably well, it seems that either > Hummingbird or its successor still sells this software, and altogether there > are a whole handful of choices. > > > ... Avoid getting too many clients connecting this way, as they > > extract a greater load ... > > Yep, this sort of client transfers complex graphics (not simple circles or > squares) bit by bit, and so can produce a very heavy load on your network > and use lots of buffering RAM on the other end. > > thanks! -Chuck Kollars > > > > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > -------------- next part -------------- An HTML attachment was scrubbed... URL: From robark at gmail.com Wed Sep 24 16:43:25 2008 From: robark at gmail.com (Robert Arkiletian) Date: Wed, 24 Sep 2008 09:43:25 -0700 Subject: [K12OSN] Using ltspinfo to shutdown clients In-Reply-To: <48DA57CA.2080700@vol.org> References: <48D8CE71.5040502@portsmouth-college.ac.uk> <48DA57CA.2080700@vol.org> Message-ID: On Wed, Sep 24, 2008 at 8:07 AM, george kocke wrote: > Brian Chivers wrote: > >> I was about to start writing a script to run on the server to shutdown all >> our clients at the end of the day using ltspinfo but I thought I'd ask >> people what they are doing for this. > >> Also if any one would like to share there scripts I'd be very appreciative >> so I don't have to start from scratch :-) > > I wrote this script and call it from a cron job: > > > > #!/bin/bash > > # lounge machines > /usr/bin/ltspinfo --host=lounge-a --shutdown > /usr/bin/ltspinfo --host=lounge-b --shutdown > /usr/bin/ltspinfo --host=lounge-c --shutdown > > # dhcp machines > START=101 > END=249 > > NETWORK="192.168.105." > > for i in `seq $START $END`; do > IP="$NETWORK$i" > X=`/usr/bin/ltspinfo --host=$IP --shutdown` > echo "$IP: $X" > done > > I warn people not to enable this feature as it's a security issue in ltsp 4.x. However, george, if you do use it I would put in a time interval for each powerdown becuase the loop to issue powerdown runs very quickly. So it's effectively like having 30 people hit power off button at the same time. That could cause a power surge (maybe it's called spike) for equipment still up and may potentially damage something. A 1 second interval (sleep 1s) should be sufficient. -- Robert Arkiletian Eric Hamber Secondary, Vancouver, Canada Fl_TeacherTool http://www3.telus.net/public/robark/Fl_TeacherTool/ C++ GUI tutorial http://www3.telus.net/public/robark/ From microman at cmosnetworks.com Thu Sep 25 01:12:37 2008 From: microman at cmosnetworks.com (=?ISO-8859-1?Q?=22Terrell_Prud=E9_Jr=2E=22?=) Date: Wed, 24 Sep 2008 21:12:37 -0400 Subject: [K12OSN] School Server In-Reply-To: References: <48D0C80C.4030306@arava.co.il> <48D0ECB9.30704@biochemfluidics.com> <1222223733.3989.9.camel@merlin.localnetsolutions.com> Message-ID: <48DAE585.6090900@cmosnetworks.com> Timothy Legge wrote: > On Wed, Sep 24, 2008 at 7:47 AM, Timothy Legge wrote: > > >>>> Tim >>>> >>> SAS is well supported (shows up as SCSI drives). I recommend changing >>> from Intel to Opteron as LSTP is very memory intensive and Opteron kicks >>> the teeth out of Intel for memory intensive operations. That on-chip >>> memory controller cuts 2 clock cycles out of a fetch process. >>> >> I considered Opterons but for some reason I could only configure dual >> cores on dells web site. I will review that again... >> > > Actually now that I think of it, I thought that the Intels had gotten > the edge in the last year or so with the multicore. > > Tim > > They have. Intel is essentially wiping the floor with AMD, in pretty much every way except for slightly more power usage with the mobo chipset. For an LTSP server with all-out performance, Intel's the way to go. On the other hand, I'd do every thick client with AMD's tri-core Phenom and AMD's integrated ATI graphics chipset, now that the specs for ATI graphics are once again open. Phenom tri-cores are certainly fast enough for any school's thick client--yes, including the GIMP/Photoshop class. Graphic chipset performance becomes a lot more important. Intel's CPU's may be faster, but AMD/ATI RadeonHD graphics kicks Intel's integrated one in the posterior, and for less money. And the RadeonHD 3-D drivers are continuing to improve.... --TP _______________________________ Do you GNU ? Microsoft Free since 2003 --the ultimate antivirus protection! -------------- next part -------------- An HTML attachment was scrubbed... URL: From microman at cmosnetworks.com Thu Sep 25 01:14:59 2008 From: microman at cmosnetworks.com (=?ISO-8859-1?Q?=22Terrell_Prud=E9_Jr=2E=22?=) Date: Wed, 24 Sep 2008 21:14:59 -0400 Subject: [K12OSN] School Server In-Reply-To: References: <48D0C80C.4030306@arava.co.il> <48D0ECB9.30704@biochemfluidics.com> <1222223733.3989.9.camel@merlin.localnetsolutions.com> Message-ID: <48DAE613.4090002@cmosnetworks.com> Timothy Legge wrote: > I considered Opterons but for some reason I could only configure dual > cores on dells web site. I will review that again... > > Tim > Have you ever considered Penguin Computing's servers? Dell's not the only server maker out there, and Penguin is (obviously) very attuned to the Linux/FOSS community. Their servers kick total butt, too, and at quite a reasonable price. Oh, and they have Opterons. :-) http://www.penguincomputing.com/ --TP From einfeldt at gmail.com Thu Sep 25 01:37:22 2008 From: einfeldt at gmail.com (Christian Einfeldt) Date: Wed, 24 Sep 2008 18:37:22 -0700 Subject: [K12OSN] School Server In-Reply-To: <48DAE613.4090002@cmosnetworks.com> References: <48D0C80C.4030306@arava.co.il> <48D0ECB9.30704@biochemfluidics.com> <1222223733.3989.9.camel@merlin.localnetsolutions.com> <48DAE613.4090002@cmosnetworks.com> Message-ID: <4b5781040809241837t5dc815eexd7ca58f3dcfdd18f@mail.gmail.com> hi On Wed, Sep 24, 2008 at 6:14 PM, "Terrell Prud? Jr." < microman at cmosnetworks.com> wrote: > Timothy Legge wrote: > >> I considered Opterons but for some reason I could only configure dual >> cores on dells web site. I will review that again... >> >> Tim >> >> > > Have you ever considered Penguin Computing's servers? Dell's not the only > server maker out there, and Penguin is (obviously) very attuned to the > Linux/FOSS community. Their servers kick total butt, too, and at quite a > reasonable price. Another computer maker to consider is Zareason. They provided us with a good server, and the story made Slashdot here: http://linux.slashdot.org/article.pl?sid=07/10/11/1446254 And here is a picture of our school lab. You can see two Zareason shuttle boxes in the background that were funded by Microsoft (against their wishes) and with no Microsoft tax: http://www.linuxjournal.com/content/what-theyre-using-christian-einfeldt-producer-digital-tipping-point c u -------------- next part -------------- An HTML attachment was scrubbed... URL: From dahopkins429 at gmail.com Thu Sep 25 17:19:08 2008 From: dahopkins429 at gmail.com (David Hopkins) Date: Thu, 25 Sep 2008 13:19:08 -0400 Subject: [K12OSN] OT: bash scripting - check for permissions, check for existence of file in directory tree In-Reply-To: <48DA2956.6000506@biochemfluidics.com> References: <48D93E3E.9040905@biochemfluidics.com> <9CC1851E-744E-4B63-BEF7-F9631CDA2C8B@breun.nl> <48DA21E6.4070806@biochemfluidics.com> <48DA2956.6000506@biochemfluidics.com> Message-ID: What about using the locate command (which is much faster) in a script? And then testing if the command returned successfully, e.g. locate somefile if [ $? -eq 0 ] then # successfully located somefile # operate on the file (or check that it is part of the correct directory structure?) fi $? returns the success/failure of the immediately preceding command. and if run updatedb each night, locate will work for any but the most recent files? Sincerely, Dave Hopkins On Wed, Sep 24, 2008 at 7:49 AM, Rob Owens wrote: > Nils Breunese wrote: >> Rob Owens wrote: >> >>> Nils Breunese wrote: >>>> Rob Owens wrote: >>>> >>>>> 2) I need to check for the existence of a file somewhere in a directory >>>>> tree (with lots of subdirectories). >>>> >>>> ---- >>>> find -name >>>> ---- >>>> >>> I thought of that, but suspected there might be a better way. Guess I >>> was wrong. >> >> Better in what way? >> > I'm not actually looking to find a file and output it, I need to perform > some action if a file exists. Since I don't know where the file is, I > guess I've got to find it first... > > I was hoping there would be a recursive way of doing: if [ -f $FILE ]; > then (or some other one-liner). > > -Rob > ******************************************************** > > The information transmitted is intended only for the person or entity to > which it is addressed and may contain confidential and/or privileged > material. If you are not the addressee, any disclosure, reproduction, > copying, distribution, or other dissemination or use of this transmission in > error please notify the sender immediately and then delete this e-mail. > E-mail transmission cannot be guaranteed to be secure or error free as > information could be intercepted, corrupted lost, destroyed, arrive late or > incomplete, or contain viruses. > The sender therefore does not accept liability for any errors or omissions > in the contents of this message which arise as a result of e-mail > transmission. If verification is required please request a hard copy > version. > > ******************************************************** > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > From nils at breun.nl Thu Sep 25 17:28:45 2008 From: nils at breun.nl (Nils Breunese) Date: Thu, 25 Sep 2008 19:28:45 +0200 Subject: [K12OSN] OT: bash scripting - check for permissions, check for existence of file in directory tree In-Reply-To: References: <48D93E3E.9040905@biochemfluidics.com> <9CC1851E-744E-4B63-BEF7-F9631CDA2C8B@breun.nl> <48DA21E6.4070806@biochemfluidics.com> <48DA2956.6000506@biochemfluidics.com> Message-ID: David Hopkins wrote: > What about using the locate command (which is much faster) in a > script? And then testing if the command returned successfully, e.g. > > locate somefile > if [ $? -eq 0 ] then > # successfully located somefile > # operate on the file (or check that it is part of the correct > directory structure?) > fi > > $? returns the success/failure of the immediately preceding command. > and if run updatedb each night, locate will work for any but the most > recent files? That works if the frequency at which your locate database is updated if good enough for your application. You could add an extra check to see if the file really exists after locate says it exists. You'll still miss files that were created after the last time your locate database was updated. If you want to have the most recent info about your filesystem you'll just have to stick with find. I guess it also depends on whether the directory you're searching has a lot of files. If it's not too big it's probably not worth it to use locate and sacrifice precision. Nils Breunese. From rob.owens at biochemfluidics.com Fri Sep 26 12:06:46 2008 From: rob.owens at biochemfluidics.com (Rob Owens) Date: Fri, 26 Sep 2008 08:06:46 -0400 Subject: [K12OSN] OT: bash scripting - check for permissions, check for existence of file in directory tree In-Reply-To: References: <48D93E3E.9040905@biochemfluidics.com> <9CC1851E-744E-4B63-BEF7-F9631CDA2C8B@breun.nl> <48DA21E6.4070806@biochemfluidics.com> <48DA2956.6000506@biochemfluidics.com> Message-ID: <48DCD056.5090808@biochemfluidics.com> Nils Breunese wrote: > David Hopkins wrote: > >> What about using the locate command (which is much faster) in a >> script? And then testing if the command returned successfully, e.g. >> >> locate somefile >> if [ $? -eq 0 ] then >> # successfully located somefile >> # operate on the file (or check that it is part of the correct >> directory structure?) >> fi >> >> $? returns the success/failure of the immediately preceding command. >> and if run updatedb each night, locate will work for any but the most >> recent files? > > That works if the frequency at which your locate database is updated if > good enough for your application. You could add an extra check to see if > the file really exists after locate says it exists. You'll still miss > files that were created after the last time your locate database was > updated. If you want to have the most recent info about your filesystem > you'll just have to stick with find. > > I guess it also depends on whether the directory you're searching has a > lot of files. If it's not too big it's probably not worth it to use > locate and sacrifice precision. > Thanks, that would probably be a good option for me too. It would be a rare case that we issue a drawing and then obsolete it in the same day (and that's what this script is for -- obsoleting drawings). This is what I've been using for the past couple of days in my testing: if [ 'find $MASTERDIR -name $(basename $OLDREV)' ]; then stamp_and_move $OLDREV else error-file_location exit fi -Rob ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** From timlegge at gmail.com Fri Sep 26 14:23:20 2008 From: timlegge at gmail.com (Timothy Legge) Date: Fri, 26 Sep 2008 11:23:20 -0300 Subject: [K12OSN] School Server In-Reply-To: <4b5781040809241837t5dc815eexd7ca58f3dcfdd18f@mail.gmail.com> References: <48D0C80C.4030306@arava.co.il> <48D0ECB9.30704@biochemfluidics.com> <1222223733.3989.9.camel@merlin.localnetsolutions.com> <48DAE613.4090002@cmosnetworks.com> <4b5781040809241837t5dc815eexd7ca58f3dcfdd18f@mail.gmail.com> Message-ID: 2008/9/24 Christian Einfeldt : >>> I considered Opterons but for some reason I could only configure dual >>> cores on dells web site. I will review that again... >>> >>> Tim >>> >> >> Have you ever considered Penguin Computing's servers? Dell's not the only >> server maker out there, and Penguin is (obviously) very attuned to the >> Linux/FOSS community. Their servers kick total butt, too, and at quite a >> reasonable price. > > Another computer maker to consider is Zareason. They provided us with a > good server, and the story made Slashdot here: I would consider something other than Dell. Unfortunately, I am in Canada and most of the time Customs and Brokerage fees just make it a hassle... Tim From lesmikesell at gmail.com Fri Sep 26 14:58:21 2008 From: lesmikesell at gmail.com (Les Mikesell) Date: Fri, 26 Sep 2008 09:58:21 -0500 Subject: [K12OSN] School Server In-Reply-To: References: <48D0C80C.4030306@arava.co.il> <48D0ECB9.30704@biochemfluidics.com> <1222223733.3989.9.camel@merlin.localnetsolutions.com> <48DAE613.4090002@cmosnetworks.com> <4b5781040809241837t5dc815eexd7ca58f3dcfdd18f@mail.gmail.com> Message-ID: <48DCF88D.5070209@gmail.com> Timothy Legge wrote: > > I would consider something other than Dell. Unfortunately, I am in > Canada and most of the time Customs and Brokerage fees just make it a > hassle... > IBM's 3550 and 3650 lines are pretty nice. -- Les Mikesell lesmikesell at gmail.com From microman at cmosnetworks.com Fri Sep 26 16:14:54 2008 From: microman at cmosnetworks.com (=?ISO-8859-1?Q?=22Terrell_Prud=E9_Jr=2E=22?=) Date: Fri, 26 Sep 2008 12:14:54 -0400 Subject: [K12OSN] School Server In-Reply-To: References: <48D0C80C.4030306@arava.co.il> <48D0ECB9.30704@biochemfluidics.com> <1222223733.3989.9.camel@merlin.localnetsolutions.com> <48DAE613.4090002@cmosnetworks.com> <4b5781040809241837t5dc815eexd7ca58f3dcfdd18f@mail.gmail.com> Message-ID: <48DD0A7E.60906@cmosnetworks.com> Timothy Legge wrote: > I would consider something other than Dell. Unfortunately, I am in > Canada and most of the time Customs and Brokerage fees just make it a > hassle... > > Tim > Assuming that building your own server is not an option here.... Give both Penguin and ZaReason a call. Perhaps they've dealt with this and have an easy way to handle shipments to Canada. Penguin's been around for long enough that, who knows, they might have a "dealership" of some sort up there. Failing that, then Les's suggestion of IBM is a good one. --TP From rob.owens at biochemfluidics.com Fri Sep 26 16:54:31 2008 From: rob.owens at biochemfluidics.com (Rob Owens) Date: Fri, 26 Sep 2008 12:54:31 -0400 Subject: [K12OSN] OT: check case and format of filename Message-ID: <48DD13C7.9080301@biochemfluidics.com> Since list has been kinda slow lately, I'll test your patience with one more scripting question. You guys have really helped me learn a lot in the past couple of days. I've been looking into bash parameter expansion, awk, and sed, but I'm not really sure I'm going in the right direction. I need to check a filename for a particular "format" or "convention". File names should look like this: AB12D89-S123--revA AB12D89-S123--revA--page1 In other words: 1) They should be all uppercase and numeric before the '--' 2) They must contain '--revX', where X is any uppercase letter, and 'rev' must be lowercase. 3) There is an optional --page# at the end, where # is any number, and 'page' must be lowercase. I can work out the logic of testing for compliance with my rules, but I'm not sure how to identify the case of each letter, nor how to split the filename up using '--' as the divider. Thanks for any advice you might have. By the way, this is to be part of a bash script (which is to be run on my K12LTSP box). -Rob ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** From nils at breun.nl Fri Sep 26 17:12:08 2008 From: nils at breun.nl (Nils Breunese) Date: Fri, 26 Sep 2008 19:12:08 +0200 Subject: [K12OSN] OT: check case and format of filename In-Reply-To: <48DD13C7.9080301@biochemfluidics.com> References: <48DD13C7.9080301@biochemfluidics.com> Message-ID: Rob Owens wrote: > Since list has been kinda slow lately, I'll test your patience with > one > more scripting question. You guys have really helped me learn a lot > in > the past couple of days. I've been looking into bash parameter > expansion, awk, and sed, but I'm not really sure I'm going in the > right > direction. > > I need to check a filename for a particular "format" or "convention". > File names should look like this: > > AB12D89-S123--revA > AB12D89-S123--revA--page1 > > In other words: > > 1) They should be all uppercase and numeric before the '--' > 2) They must contain '--revX', where X is any uppercase letter, and > 'rev' must be lowercase. > 3) There is an optional --page# at the end, where # is any number, > and > 'page' must be lowercase. > > I can work out the logic of testing for compliance with my rules, but > I'm not sure how to identify the case of each letter, nor how to split > the filename up using '--' as the divider. > > Thanks for any advice you might have. By the way, this is to be > part of > a bash script (which is to be run on my K12LTSP box). Do you need a function that returns true or false depending on whether a string (filename) complies with the format or do you need something that returns all filenames in a directory that do or do not comply or something? Did you already figure out that you're probably looking at using regular expressions? http://www.regular-expressions.info/ has a lot of info on regular expressions. Hm, this is starting to feel like work. This is your last free question, next time I'll send you an invoice. :o) Nils Breunese. From lesmikesell at gmail.com Fri Sep 26 17:34:34 2008 From: lesmikesell at gmail.com (Les Mikesell) Date: Fri, 26 Sep 2008 12:34:34 -0500 Subject: [K12OSN] School Server In-Reply-To: <48DD0A7E.60906@cmosnetworks.com> References: <48D0C80C.4030306@arava.co.il> <48D0ECB9.30704@biochemfluidics.com> <1222223733.3989.9.camel@merlin.localnetsolutions.com> <48DAE613.4090002@cmosnetworks.com> <4b5781040809241837t5dc815eexd7ca58f3dcfdd18f@mail.gmail.com> <48DD0A7E.60906@cmosnetworks.com> Message-ID: <48DD1D2A.5090206@gmail.com> Terrell Prud? Jr. wrote: > Timothy Legge wrote: >> I would consider something other than Dell. Unfortunately, I am in >> Canada and most of the time Customs and Brokerage fees just make it a >> hassle... >> >> Tim >> > > Assuming that building your own server is not an option here.... > > Give both Penguin and ZaReason a call. Perhaps they've dealt with this > and have an easy way to handle shipments to Canada. Penguin's been > around for long enough that, who knows, they might have a "dealership" > of some sort up there. > > Failing that, then Les's suggestion of IBM is a good one. I haven't actually done the purchasing of these for a while - it used to be that IBM pricing was only competitive if you were a large customer and qualified for discounts where Dell took the opposite approach and often gave the best prices in the 'small/medium' business section of their on-line site. But things might be different now - or in Canada. -- Les Mikesell lesmikesell at gmail.com From rob.owens at biochemfluidics.com Fri Sep 26 18:17:18 2008 From: rob.owens at biochemfluidics.com (Rob Owens) Date: Fri, 26 Sep 2008 14:17:18 -0400 Subject: [K12OSN] OT: check case and format of filename In-Reply-To: References: <48DD13C7.9080301@biochemfluidics.com> Message-ID: <48DD272E.1030709@biochemfluidics.com> Nils Breunese wrote: > Rob Owens wrote: > >> Since list has been kinda slow lately, I'll test your patience with one >> more scripting question. You guys have really helped me learn a lot in >> the past couple of days. I've been looking into bash parameter >> expansion, awk, and sed, but I'm not really sure I'm going in the right >> direction. >> >> I need to check a filename for a particular "format" or "convention". >> File names should look like this: >> >> AB12D89-S123--revA >> AB12D89-S123--revA--page1 >> >> In other words: >> >> 1) They should be all uppercase and numeric before the '--' >> 2) They must contain '--revX', where X is any uppercase letter, and >> 'rev' must be lowercase. >> 3) There is an optional --page# at the end, where # is any number, and >> 'page' must be lowercase. >> >> I can work out the logic of testing for compliance with my rules, but >> I'm not sure how to identify the case of each letter, nor how to split >> the filename up using '--' as the divider. >> >> Thanks for any advice you might have. By the way, this is to be part of >> a bash script (which is to be run on my K12LTSP box). > > Do you need a function that returns true or false depending on whether a > string (filename) complies with the format or do you need something that > returns all filenames in a directory that do or do not comply or > something? Did you already figure out that you're probably looking at > using regular expressions? http://www.regular-expressions.info/ has a > lot of info on regular expressions. > Yes, I've been learning about regular expressions. I appreciate the link. More stuff to read! I need to check one particular string for compliance with the format. I don't need to correct the format, I just need to inform the user that it is incorrect. > Hm, this is starting to feel like work. This is your last free question, > next time I'll send you an invoice. :o) > Next time, if you're willing, I'll save myself a lot of effort and pay you to do the whole thing. -Rob ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** From rob.owens at biochemfluidics.com Fri Sep 26 19:17:15 2008 From: rob.owens at biochemfluidics.com (Rob Owens) Date: Fri, 26 Sep 2008 15:17:15 -0400 Subject: [K12OSN] push a launcher to certain users Message-ID: <48DD353B.3010907@biochemfluidics.com> I'm looking for an easy way to install a custom launcher on the top panel of certain users' Gnome desktops. I can't figure out where the heck those files are stored. Can anybody lend me some guidance? I'd prefer to not have to create it from scratch for each user... -Rob ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** From lesmikesell at gmail.com Fri Sep 26 19:17:30 2008 From: lesmikesell at gmail.com (Les Mikesell) Date: Fri, 26 Sep 2008 14:17:30 -0500 Subject: [K12OSN] OT: check case and format of filename In-Reply-To: <48DD272E.1030709@biochemfluidics.com> References: <48DD13C7.9080301@biochemfluidics.com> <48DD272E.1030709@biochemfluidics.com> Message-ID: <48DD354A.2030803@gmail.com> Rob Owens wrote: >>> Since list has been kinda slow lately, I'll test your patience with one >>> more scripting question. You guys have really helped me learn a lot in >>> the past couple of days. I've been looking into bash parameter >>> expansion, awk, and sed, but I'm not really sure I'm going in the right >>> direction. >>> >>> I need to check a filename for a particular "format" or "convention". >>> File names should look like this: >>> >>> AB12D89-S123--revA >>> AB12D89-S123--revA--page1 >>> >>> In other words: >>> >>> 1) They should be all uppercase and numeric before the '--' >>> 2) They must contain '--revX', where X is any uppercase letter, and >>> 'rev' must be lowercase. >>> 3) There is an optional --page# at the end, where # is any number, and >>> 'page' must be lowercase. >>> >>> I can work out the logic of testing for compliance with my rules, but >>> I'm not sure how to identify the case of each letter, nor how to split >>> the filename up using '--' as the divider. >>> >>> Thanks for any advice you might have. By the way, this is to be part of >>> a bash script (which is to be run on my K12LTSP box). >> Do you need a function that returns true or false depending on whether a >> string (filename) complies with the format or do you need something that >> returns all filenames in a directory that do or do not comply or >> something? Did you already figure out that you're probably looking at >> using regular expressions? http://www.regular-expressions.info/ has a >> lot of info on regular expressions. >> > Yes, I've been learning about regular expressions. I appreciate the > link. More stuff to read! > > I need to check one particular string for compliance with the format. I > don't need to correct the format, I just need to inform the user that it > is incorrect. If you don't already know how to do something in shell/awk/sed you are probably better off starting with perl which can do all of the same and more, and even if you do know, you can do it in perl without changing a lot. However, if you can describe your rules in terms of pathname expansions instead of regexps (which might be the point of the rules in the first place since you are talking about filenames...,) you might be able to do the tests in a shell case statement. It's hard to get variable-sized parts right in filename globs unless you enable the extended patterns, though. -- Les Mikesell lesmikesell at gmail.com From nils at breun.nl Fri Sep 26 19:29:30 2008 From: nils at breun.nl (Nils Breunese) Date: Fri, 26 Sep 2008 21:29:30 +0200 Subject: [K12OSN] OT: check case and format of filename In-Reply-To: <48DD272E.1030709@biochemfluidics.com> References: <48DD13C7.9080301@biochemfluidics.com> <48DD272E.1030709@biochemfluidics.com> Message-ID: Rob Owens wrote: > Nils Breunese wrote: >> Rob Owens wrote: >> >>> Since list has been kinda slow lately, I'll test your patience >>> with one >>> more scripting question. You guys have really helped me learn a >>> lot in >>> the past couple of days. I've been looking into bash parameter >>> expansion, awk, and sed, but I'm not really sure I'm going in the >>> right >>> direction. >>> >>> I need to check a filename for a particular "format" or >>> "convention". >>> File names should look like this: >>> >>> AB12D89-S123--revA >>> AB12D89-S123--revA--page1 >>> >>> In other words: >>> >>> 1) They should be all uppercase and numeric before the '--' There's also a dash before the '--'. That not uppercase or numeric... I added dash to the allowed characters before '--' in the regular expression below. >>> 2) They must contain '--revX', where X is any uppercase letter, and >>> 'rev' must be lowercase. >>> 3) There is an optional --page# at the end, where # is any >>> number, and >>> 'page' must be lowercase. >>> >>> I can work out the logic of testing for compliance with my rules, >>> but >>> I'm not sure how to identify the case of each letter, nor how to >>> split >>> the filename up using '--' as the divider. >>> >>> Thanks for any advice you might have. By the way, this is to be >>> part of >>> a bash script (which is to be run on my K12LTSP box). >> >> Do you need a function that returns true or false depending on >> whether a >> string (filename) complies with the format or do you need something >> that >> returns all filenames in a directory that do or do not comply or >> something? Did you already figure out that you're probably looking at >> using regular expressions? http://www.regular-expressions.info/ has a >> lot of info on regular expressions. >> > Yes, I've been learning about regular expressions. I appreciate the > link. More stuff to read! > > I need to check one particular string for compliance with the > format. I > don't need to correct the format, I just need to inform the user > that it > is incorrect. Without going to Python or Perl or something you could try this: echo $filename | grep "^[A-Z0-9-]\+--rev[A-Z]\(--page[0-9]\+\)\?$" and check the return value ($?, 0 for succes). Nils Breunese. From whatch at anwsu.org Sat Sep 27 13:36:36 2008 From: whatch at anwsu.org (Will Hatch) Date: Sat, 27 Sep 2008 09:36:36 -0400 Subject: [K12OSN] windows login to k12ltsp Message-ID: <48DDFE7A.0948.00D4.0@anwsu.org> I have the xserver Xming set up on my Windows XP workstation. I can get to the K12ltsp login screen, but when I type in the username/password credentials and click ok I just get a blank screen. The mouse pointer is there, and I think it is connected because I was logged into the server directly and when I tried from the workstation it gave me the message about already being logged in. But, the desktop doesn't show up. Could this be a security issue in Gnome that I have address? Any ideas? Thanks *********************************** PRIVILEGED AND CONFIDENTIAL: This communication, including attachments, is for the exclusive use of addressee and may contain proprietary, confidential or privileged information. If you are not the intended recipient, any use, copying, disclosure, dissemination or distribution is strictly prohibited. If you're not the intended recipient, please notify the sender immediately by return email and delete this communication and destroy all copies. It is the policy of ANWSU not to discriminate on the basis or race, color, religion, national origin, gender, disability, or gender orientation in its educational programs or activities, or in its employment policies as required by Title IX of the 1972 Educational Amendments, by Section 504 of the Rehabilitation Act of 1973, by Title VI of the Civil Rights Act of 1964, and by Vermont State Law. From peter at scheie.homedns.org Sun Sep 28 14:32:13 2008 From: peter at scheie.homedns.org (Peter Scheie) Date: Sun, 28 Sep 2008 09:32:13 -0500 Subject: [K12OSN] School Server In-Reply-To: <48DD1D2A.5090206@gmail.com> References: <48D0C80C.4030306@arava.co.il> <48D0ECB9.30704@biochemfluidics.com> <1222223733.3989.9.camel@merlin.localnetsolutions.com> <48DAE613.4090002@cmosnetworks.com> <4b5781040809241837t5dc815eexd7ca58f3dcfdd18f@mail.gmail.com> <48DD0A7E.60906@cmosnetworks.com> <48DD1D2A.5090206@gmail.com> Message-ID: <48DF956D.3010101@scheie.homedns.org> Les Mikesell wrote: > Terrell Prud? Jr. wrote: >> Timothy Legge wrote: >>> I would consider something other than Dell. Unfortunately, I am in >>> Canada and most of the time Customs and Brokerage fees just make it a >>> hassle... >>> >>> Tim >>> >> >> Assuming that building your own server is not an option here.... >> >> Give both Penguin and ZaReason a call. Perhaps they've dealt with >> this and have an easy way to handle shipments to Canada. Penguin's >> been around for long enough that, who knows, they might have a >> "dealership" of some sort up there. >> >> Failing that, then Les's suggestion of IBM is a good one. > > I haven't actually done the purchasing of these for a while - it used to > be that IBM pricing was only competitive if you were a large customer > and qualified for discounts where Dell took the opposite approach and > often gave the best prices in the 'small/medium' business section of > their on-line site. But things might be different now - or in Canada. > With Dell, it is still that way. A colleague and I were on the phone pricing out a Dell server. The price he was seeing was about $1000 less than what I was seeing for an identical configuration. The difference was he came through the Small/Home Business link on the Dell website, and I came through the Large/Enterprise link. So, if you price out a Dell, make sure you try multiple paths to the config you want. Peter From peter at scheie.homedns.org Sun Sep 28 14:38:58 2008 From: peter at scheie.homedns.org (Peter Scheie) Date: Sun, 28 Sep 2008 09:38:58 -0500 Subject: [K12OSN] push a launcher to certain users In-Reply-To: <48DD353B.3010907@biochemfluidics.com> References: <48DD353B.3010907@biochemfluidics.com> Message-ID: <48DF9702.7030500@scheie.homedns.org> I suggest putting it on the desktop of the selected users, as it is much simpler than trying to get it into the panel: just use a for loop in a script to copy the file (or symlink or a launcher complete with decorative icon) to each desired user's Desktop directory. They'll still find it. Easier to remove down the road, too. Peter Rob Owens wrote: > I'm looking for an easy way to install a custom launcher on the top > panel of certain users' Gnome desktops. I can't figure out where the > heck those files are stored. Can anybody lend me some guidance? I'd > prefer to not have to create it from scratch for each user... > > -Rob > ******************************************************** > > The information transmitted is intended only for the person or entity to > which it is addressed and may contain confidential and/or privileged > material. If you are not the addressee, any disclosure, reproduction, > copying, distribution, or other dissemination or use of this transmission in > error please notify the sender immediately and then delete this e-mail. > E-mail transmission cannot be guaranteed to be secure or error free as > information could be intercepted, corrupted lost, destroyed, arrive late or > incomplete, or contain viruses. > The sender therefore does not accept liability for any errors or omissions > in the contents of this message which arise as a result of e-mail > transmission. If verification is required please request a hard copy > version. > > ******************************************************** > > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > From lesmikesell at gmail.com Sun Sep 28 17:03:06 2008 From: lesmikesell at gmail.com (Les Mikesell) Date: Sun, 28 Sep 2008 12:03:06 -0500 Subject: [K12OSN] push a launcher to certain users In-Reply-To: <48DF9702.7030500@scheie.homedns.org> References: <48DD353B.3010907@biochemfluidics.com> <48DF9702.7030500@scheie.homedns.org> Message-ID: <48DFB8CA.9050105@gmail.com> Peter Scheie wrote: > I suggest putting it on the desktop of the selected users, as it is much > simpler than trying to get it into the panel: just use a for loop in a > script to copy the file (or symlink or a launcher complete with > decorative icon) to each desired user's Desktop directory. They'll > still find it. Easier to remove down the road, too. Or if you are doing this for certain groups you could maintain the set of launchers for the group in a common directory elsewhere and put a symlink to the folder on the desktops. That way you don't have to update the desktops every time you change a launcher. -- Les Mikesell lesmikesell at gmail.com From lesmikesell at gmail.com Sun Sep 28 17:11:23 2008 From: lesmikesell at gmail.com (Les Mikesell) Date: Sun, 28 Sep 2008 12:11:23 -0500 Subject: [K12OSN] School Server In-Reply-To: <48DF956D.3010101@scheie.homedns.org> References: <48D0C80C.4030306@arava.co.il> <48D0ECB9.30704@biochemfluidics.com> <1222223733.3989.9.camel@merlin.localnetsolutions.com> <48DAE613.4090002@cmosnetworks.com> <4b5781040809241837t5dc815eexd7ca58f3dcfdd18f@mail.gmail.com> <48DD0A7E.60906@cmosnetworks.com> <48DD1D2A.5090206@gmail.com> <48DF956D.3010101@scheie.homedns.org> Message-ID: <48DFBABB.2060505@gmail.com> Peter Scheie wrote: > >>> Assuming that building your own server is not an option here.... >>> >>> Give both Penguin and ZaReason a call. Perhaps they've dealt with >>> this and have an easy way to handle shipments to Canada. Penguin's >>> been around for long enough that, who knows, they might have a >>> "dealership" of some sort up there. >>> >>> Failing that, then Les's suggestion of IBM is a good one. >> >> I haven't actually done the purchasing of these for a while - it used >> to be that IBM pricing was only competitive if you were a large >> customer and qualified for discounts where Dell took the opposite >> approach and often gave the best prices in the 'small/medium' business >> section of their on-line site. But things might be different now - or >> in Canada. >> > With Dell, it is still that way. A colleague and I were on the phone > pricing out a Dell server. The price he was seeing was about $1000 less > than what I was seeing for an identical configuration. The difference > was he came through the Small/Home Business link on the Dell website, > and I came through the Large/Enterprise link. So, if you price out a > Dell, make sure you try multiple paths to the config you want. > And with IBM if you don't have a district/corporate buying agreement for volume you might do better going though a reseller. -- Les Mikesell lesmikesell at gmail.com From jones_yeates at hotmail.com Mon Sep 29 03:27:08 2008 From: jones_yeates at hotmail.com (jones yeates) Date: Mon, 29 Sep 2008 03:27:08 +0000 Subject: [K12OSN] School Server In-Reply-To: <48DF956D.3010101@scheie.homedns.org> References: <48D0C80C.4030306@arava.co.il> <48D0ECB9.30704@biochemfluidics.com> <1222223733.3989.9.camel@merlin.localnetsolutions.com> <48DAE613.4090002@cmosnetworks.com> <4b5781040809241837t5dc815eexd7ca58f3dcfdd18f@mail.gmail.com> <48DD0A7E.60906@cmosnetworks.com> <48DD1D2A.5090206@gmail.com> <48DF956D.3010101@scheie.homedns.org> Message-ID: > Date: Sun, 28 Sep 2008 09:32:13 -0500> From: peter at scheie.homedns.org> To: k12osn at redhat.com> Subject: Re: [K12OSN] School Server> > Les Mikesell wrote:> > Terrell Prud? Jr. wrote:> >> Timothy Legge wrote:> >>> I would consider something other than Dell. Unfortunately, I am in> >>> Canada and most of the time Customs and Brokerage fees just make it a> >>> hassle...> >>>> >>> Tim> >>> > >>> >> Assuming that building your own server is not an option here....> >>> >> Give both Penguin and ZaReason a call. Perhaps they've dealt with > >> this and have an easy way to handle shipments to Canada. Penguin's > >> been around for long enough that, who knows, they might have a > >> "dealership" of some sort up there.> >>> >> Failing that, then Les's suggestion of IBM is a good one.> > > > I haven't actually done the purchasing of these for a while - it used to > > be that IBM pricing was only competitive if you were a large customer > > and qualified for discounts where Dell took the opposite approach and > > often gave the best prices in the 'small/medium' business section of > > their on-line site. But things might be different now - or in Canada.> > > With Dell, it is still that way. A colleague and I were on the phone pricing > out a Dell server. The price he was seeing was about $1000 less than what I was > seeing for an identical configuration. The difference was he came through the > Small/Home Business link on the Dell website, and I came through the > Large/Enterprise link. So, if you price out a Dell, make sure you try multiple > paths to the config you want.> > Peter> > _______________________________________________> K12OSN mailing list> K12OSN at redhat.com> https://www.redhat.com/mailman/listinfo/k12osn> For more info see http://www.k12os.org I had a similar Dell experience as Peter. I called them directly and asked for a price on a computer component through our "dealer" at the school board. Once the school board guy had a better deal and the other time the direct Dell person had a better price. _________________________________________________________________ -------------- next part -------------- An HTML attachment was scrubbed... URL: From jkinney at localnetsolutions.com Fri Sep 26 12:18:11 2008 From: jkinney at localnetsolutions.com (James P. Kinney III) Date: Fri, 26 Sep 2008 08:18:11 -0400 Subject: [K12OSN] School Server In-Reply-To: References: <48D0C80C.4030306@arava.co.il> <48D0ECB9.30704@biochemfluidics.com> <1222223733.3989.9.camel@merlin.localnetsolutions.com> Message-ID: <1222431491.8675.21.camel@merlin.localnetsolutions.com> On Wed, 2008-09-24 at 09:03 -0300, Timothy Legge wrote: > On Wed, Sep 24, 2008 at 7:47 AM, Timothy Legge wrote: > > >>> Tim > >> SAS is well supported (shows up as SCSI drives). I recommend changing > >> from Intel to Opteron as LSTP is very memory intensive and Opteron kicks > >> the teeth out of Intel for memory intensive operations. That on-chip > >> memory controller cuts 2 clock cycles out of a fetch process. > > > > I considered Opterons but for some reason I could only configure dual > > cores on dells web site. I will review that again... > > Actually now that I think of it, I thought that the Intels had gotten > the edge in the last year or so with the multicore. Intel multicore chips still use an external memory controller chip. While they have had a stable quad-core on the market longer than AMD, the performance of the Intel systems is overall unchanged in the aspect of memory/cpu bandwidth. In summary, if the application calls for large amounts of data through put from CPU to PCI bus peripherals, use Intel. If the application calls for high task swapping or other RAM intensive operations, use AMD. The K12LTSP currently is a high memory, high task swapping problem so AMD is more suited. As things transition to more process running on the clients (as they ramp up in horsepower) then the server side will change to PCI bus access and network throughput, Intel's area. > > Tim > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > -- James P. Kinney III CEO & Director of Engineering Local Net Solutions,LLC http://www.localnetsolutions.com GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics) Fingerprint = 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7 -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. From jkinney at localnetsolutions.com Fri Sep 26 12:25:50 2008 From: jkinney at localnetsolutions.com (James P. Kinney III) Date: Fri, 26 Sep 2008 08:25:50 -0400 Subject: [K12OSN] Using ltspinfo to shutdown clients In-Reply-To: References: <48D8CE71.5040502@portsmouth-college.ac.uk> <48DA57CA.2080700@vol.org> Message-ID: <1222431950.8675.27.camel@merlin.localnetsolutions.com> On Wed, 2008-09-24 at 09:43 -0700, Robert Arkiletian wrote: > > > > #!/bin/bash > > > > # lounge machines > > /usr/bin/ltspinfo --host=lounge-a --shutdown > > /usr/bin/ltspinfo --host=lounge-b --shutdown > > /usr/bin/ltspinfo --host=lounge-c --shutdown > > > > # dhcp machines > > START=101 > > END=249 > > > > NETWORK="192.168.105." > > > > for i in `seq $START $END`; do > > IP="$NETWORK$i" > > X=`/usr/bin/ltspinfo --host=$IP --shutdown` > > echo "$IP: $X" > > done > > > > > > I warn people not to enable this feature as it's a security issue in > ltsp 4.x. However, george, if you do use it I would put in a time > interval for each powerdown becuase the loop to issue powerdown runs > very quickly. So it's effectively like having 30 people hit power off > button at the same time. That could cause a power surge (maybe it's > called spike) for equipment still up and may potentially damage > something. > > A 1 second interval (sleep 1s) should be sufficient. > A power down can cause a "phased ringing" of the current but that is unlikely to instigate damage unless the circuit is running at full capacity. The bigger issue is using similar methods to power _on_ the clients. That can cause a power surge that pops breakers and can also flood the DHCP capabilities since UDP is pretty brain dead. try 'sleep .1s' to spread out the load. A full second is fine, too. -- James P. Kinney III CEO & Director of Engineering Local Net Solutions,LLC http://www.localnetsolutions.com GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics) Fingerprint = 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7 -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. From nadavkav at gmail.com Mon Sep 29 16:43:03 2008 From: nadavkav at gmail.com (Nadav Kavalerchik) Date: Mon, 29 Sep 2008 19:43:03 +0300 Subject: [K12OSN] Fedora 9, LTSP 5, and KDE In-Reply-To: <20080918T131710Z_424200110000@deerpark.wednet.edu> References: <20080918T131710Z_424200110000@deerpark.wednet.edu> Message-ID: <4219988b0809290943q1eb829cen248b1affa67fa6e9@mail.gmail.com> i have been trying to move from fc6 (k12ltsp) for some time but with no success. from the same reasons. kde 3.5.x can not run on fc9 (i checked with fedora people) kde 4.1 is not stable enouhg (and features are missing) there is no official Kiosk Admin tool in fc9 (although suse has built one for kde 4.1 that partially works on fedora) the under lying lockdown framework suppose to work without the gui but has changed from version 3.5.x. ltsp 5 works slower then ltsp 4.2 (on fedora 9) maybe it is just me ? we decided to stay with fc6+ltsp 4.2 that works great for a hole new year dispite what every one suggests. i just upgraded OpenOffice and Firefox. (not using rpm) hope it helps :-) 2008/9/18 Steve Krause > > With the help of Sean Harbour, I have users able to login to the thin clients using their Active Directory accounts and accessing their home directories stored on a Windows server. Thank you very much Sean. > > We are trying to get the Display to KDE so we can use the Kiosk Admin Tool to manage the thin client desktops. We have been doing it with pretty good success using FC6/ltsp4.2. > > Does anyone out there know how to configure the system to only allow thin client logins to get KDE? I have tried setting up /etc/sysconfig/desktop and editting the lts.conf to launch SCREEN_07=xdmcp. No luck there. I have tried going to the /usr/share/xsessions/ and leaving only kde.desktop. Still no luck. > > I understand the thin clients use ldm to login and launch the desktop. I can find very little on how to configure it. Thanks in advance. > > > Steve Krause, CNE > Network Manager > Deer Park School District #414 > Deer Park, WA > (509) 464-5567 > krauses at deerpark.wednet.edu > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see From microman at cmosnetworks.com Mon Sep 29 16:48:59 2008 From: microman at cmosnetworks.com (=?ISO-8859-1?Q?=22Terrell_Prud=E9_Jr=2E=22?=) Date: Mon, 29 Sep 2008 12:48:59 -0400 Subject: [K12OSN] Fedora 9, LTSP 5, and KDE In-Reply-To: <4219988b0809290943q1eb829cen248b1affa67fa6e9@mail.gmail.com> References: <20080918T131710Z_424200110000@deerpark.wednet.edu> <4219988b0809290943q1eb829cen248b1affa67fa6e9@mail.gmail.com> Message-ID: <48E106FB.50604@cmosnetworks.com> Give K12LTSP 5.0EL (based on CentOS 5) a try. It looks virtually identical to FC6, but with updated apps. It will be supported until the year 2014, so you don't have to upgrade every year. It has LTSP 4.2, and it contains the familiar (and stable) KDE 3.5. I just upgraded here at home from K12LTSP 4.2EL to 5.0EL, and while 4.2EL was and is rock-stable, I'm glad I did the upgrade. --TP _______________________________ Do you GNU ? Microsoft Free since 2003 --the ultimate antivirus protection! Nadav Kavalerchik wrote: > i have been trying to move from fc6 (k12ltsp) for some time but > with no success. from the same reasons. > > kde 3.5.x can not run on fc9 (i checked with fedora people) > kde 4.1 is not stable enouhg (and features are missing) > there is no official Kiosk Admin tool in fc9 (although suse has > built one for kde 4.1 that partially works on fedora) > the under lying lockdown framework suppose to work without the gui > but has changed from version 3.5.x. > > ltsp 5 works slower then ltsp 4.2 (on fedora 9) maybe it is just me ? > > we decided to stay with fc6+ltsp 4.2 that works great for a hole new year > dispite what every one suggests. > > i just upgraded OpenOffice and Firefox. (not using rpm) > > hope it helps :-) > > > 2008/9/18 Steve Krause > >> With the help of Sean Harbour, I have users able to login to the thin clients using their Active Directory accounts and accessing their home directories stored on a Windows server. Thank you very much Sean. >> >> We are trying to get the Display to KDE so we can use the Kiosk Admin Tool to manage the thin client desktops. We have been doing it with pretty good success using FC6/ltsp4.2. >> >> Does anyone out there know how to configure the system to only allow thin client logins to get KDE? I have tried setting up /etc/sysconfig/desktop and editting the lts.conf to launch SCREEN_07=xdmcp. No luck there. I have tried going to the /usr/share/xsessions/ and leaving only kde.desktop. Still no luck. >> >> I understand the thin clients use ldm to login and launch the desktop. I can find very little on how to configure it. Thanks in advance. >> >> >> Steve Krause, CNE >> Network Manager >> Deer Park School District #414 >> Deer Park, WA >> (509) 464-5567 >> krauses at deerpark.wednet.edu >> _______________________________________________ >> K12OSN mailing list >> K12OSN at redhat.com >> https://www.redhat.com/mailman/listinfo/k12osn >> For more info see >> > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > -------------- next part -------------- An HTML attachment was scrubbed... URL: From krauses at deerpark.wednet.edu Mon Sep 29 22:22:19 2008 From: krauses at deerpark.wednet.edu (Steve Krause) Date: Mon, 29 Sep 2008 15:22:19 -0700 Subject: [K12OSN] Fedora 9, LTSP 5, and KDE Message-ID: <20080929T152219Z_424200110000@deerpark.wednet.edu> Thanks for the input. I have come to the same conclusion about KDE 3.5 on FC9. Since my boss wants to keep apps updated, I don't want to have to install manually all the time on FC6 or whichever version pre-9. I spent the day investigating another distro. So far it looks fairly promising. Again, thanks. Steve Krause, CNE Network Manager Deer Park School District #414 Deer Park, WA (509) 464-5567 krauses at deerpark.wednet.edu -------------- next part -------------- An HTML attachment was scrubbed... URL: From rob.owens at biochemfluidics.com Tue Sep 30 12:02:13 2008 From: rob.owens at biochemfluidics.com (Rob Owens) Date: Tue, 30 Sep 2008 08:02:13 -0400 Subject: [K12OSN] OT: check case and format of filename In-Reply-To: References: <48DD13C7.9080301@biochemfluidics.com> <48DD272E.1030709@biochemfluidics.com> Message-ID: <48E21545.90908@biochemfluidics.com> Nils Breunese wrote: > Rob Owens wrote: > >> Nils Breunese wrote: >>> Rob Owens wrote: >>> >>>> Since list has been kinda slow lately, I'll test your patience with one >>>> more scripting question. You guys have really helped me learn a lot in >>>> the past couple of days. I've been looking into bash parameter >>>> expansion, awk, and sed, but I'm not really sure I'm going in the right >>>> direction. >>>> >>>> I need to check a filename for a particular "format" or "convention". >>>> File names should look like this: >>>> >>>> AB12D89-S123--revA >>>> AB12D89-S123--revA--page1 >>>> >>>> In other words: >>>> >>>> 1) They should be all uppercase and numeric before the '--' > > There's also a dash before the '--'. That not uppercase or numeric... I > added dash to the allowed characters before '--' in the regular > expression below. > >>>> 2) They must contain '--revX', where X is any uppercase letter, and >>>> 'rev' must be lowercase. >>>> 3) There is an optional --page# at the end, where # is any number, and >>>> 'page' must be lowercase. >>>> >>>> I can work out the logic of testing for compliance with my rules, but >>>> I'm not sure how to identify the case of each letter, nor how to split >>>> the filename up using '--' as the divider. >>>> >>>> Thanks for any advice you might have. By the way, this is to be >>>> part of >>>> a bash script (which is to be run on my K12LTSP box). >>> >>> Do you need a function that returns true or false depending on whether a >>> string (filename) complies with the format or do you need something that >>> returns all filenames in a directory that do or do not comply or >>> something? Did you already figure out that you're probably looking at >>> using regular expressions? http://www.regular-expressions.info/ has a >>> lot of info on regular expressions. >>> >> Yes, I've been learning about regular expressions. I appreciate the >> link. More stuff to read! >> >> I need to check one particular string for compliance with the format. I >> don't need to correct the format, I just need to inform the user that it >> is incorrect. > > Without going to Python or Perl or something you could try this: > > echo $filename | grep "^[A-Z0-9-]\+--rev[A-Z]\(--page[0-9]\+\)\?$" > > and check the return value ($?, 0 for succes). > Thanks, this worked perfectly. I really appreciate everybody's help. I also appreciate the advice to learn Perl. It's now officially on my list of things to do, as well as reading up more on regular expressions. -Rob ******************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the addressee, any disclosure, reproduction, copying, distribution, or other dissemination or use of this transmission in error please notify the sender immediately and then delete this e-mail. E-mail transmission cannot be guaranteed to be secure or error free as information could be intercepted, corrupted lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard copy version. ******************************************************** From nils at breun.nl Tue Sep 30 12:39:19 2008 From: nils at breun.nl (Nils Breunese) Date: Tue, 30 Sep 2008 14:39:19 +0200 Subject: [K12OSN] OT: check case and format of filename In-Reply-To: <48E21545.90908@biochemfluidics.com> References: <48DD13C7.9080301@biochemfluidics.com> <48DD272E.1030709@biochemfluidics.com> <48E21545.90908@biochemfluidics.com> Message-ID: Op 30 sep 2008, om 14:02 heeft Rob Owens het volgende geschreven: > I really appreciate everybody's help. I also appreciate the advice to > learn Perl. It's now officially on my list of things to do, as well > as > reading up more on regular expressions. I recommend trying Python instead, but see for yourself. The Python Tutorial [0] is pretty nice. Nils Breunese. [0] http://docs.python.org/tut/tut.html From brian at portsmouth-college.ac.uk Tue Sep 30 14:13:28 2008 From: brian at portsmouth-college.ac.uk (Brian Chivers) Date: Tue, 30 Sep 2008 15:13:28 +0100 Subject: [K12OSN] Help with a script Message-ID: <48E23408.1060508@portsmouth-college.ac.uk> I've got a issue where I've had to tweak the setting for firefox but of cause some users have been using it and they're not working as they have settings in ~/.mozilla. I've looked at the script on this page http://k12ltsp.org/mediawiki/index.php/Cache_Removal and tweaked it slightly. Our users homes all live in a structure like this /home_student/tutorgroup/xx-xx/username where xx-xx is a tutorgroup such as 3P-SC so you have /home_student/tutorgroup/3P-SC/k999999 I'd like the script to remove the .mozilla directory completely so next time they start up it'll copy it over again for them hopefully fixing the problems. Can anyone see any problems (I'll be amazed if there arent' any *grin*) Thanks Brian #!/bin/bash for w in `ls /home_student/tutorgroup`; do echo "doing $w ....." for x in `ls /home_student/tutorgroup/${w}`; do echo "Doing $x ..." find /home_student/tutorgroup/${w$}/{x}/.mozilla/ -exec rm -Rf {} \; done done ------------------------------------------------------------------------------------------------ The views expressed here are my own and not necessarily the views of Portsmouth College From k12osn at deltacfax.com Tue Sep 30 15:01:48 2008 From: k12osn at deltacfax.com (Tim Born) Date: Tue, 30 Sep 2008 10:01:48 -0500 Subject: [K12OSN] Help with a script In-Reply-To: <48E23408.1060508@portsmouth-college.ac.uk> References: <48E23408.1060508@portsmouth-college.ac.uk> Message-ID: <48E23F5C.7060804@deltacfax.com> Good use of find. > find /home_student/tutorgroup/${w$}/{x}/.mozilla/ -exec rm -Rf {} \; Can we simplify this to a one-liner? I believe you said you wanted the .mozilla directory and all contents deleted? The above will leave the .mozilla directory in place. find /home_student -name .mozilla -exec rm -Rf {} \; > I'd like the script to remove the .mozilla directory completely Brian Chivers wrote: > I've got a issue where I've had to tweak the setting for firefox but > of cause some users have been using it and they're not working as they > have settings in ~/.mozilla. > > I've looked at the script on this page > http://k12ltsp.org/mediawiki/index.php/Cache_Removal and tweaked it > slightly. > > Our users homes all live in a structure like this > > /home_student/tutorgroup/xx-xx/username > > where xx-xx is a tutorgroup such as 3P-SC > > so you have > > /home_student/tutorgroup/3P-SC/k999999 > > I'd like the script to remove the .mozilla directory completely so > next time they start up it'll copy it over again for them hopefully > fixing the problems. > > Can anyone see any problems (I'll be amazed if there arent' any *grin*) > > Thanks > Brian > > #!/bin/bash > for w in `ls /home_student/tutorgroup`; do > echo "doing $w ....." > for x in `ls /home_student/tutorgroup/${w}`; do > echo "Doing $x ..." > find /home_student/tutorgroup/${w$}/{x}/.mozilla/ -exec > rm -Rf {} \; > done > done > > ------------------------------------------------------------------------------------------------ > > The views expressed here are my own and not necessarily > > the views of Portsmouth College > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see -------------- next part -------------- An HTML attachment was scrubbed... URL: From simpsond at leopards.k12.ar.us Tue Sep 30 15:41:24 2008 From: simpsond at leopards.k12.ar.us (Doug Simpson) Date: Tue, 30 Sep 2008 10:41:24 -0500 Subject: [K12OSN] Help with a script In-Reply-To: <48E23F5C.7060804@deltacfax.com> References: <48E23408.1060508@portsmouth-college.ac.uk> <48E23F5C.7060804@deltacfax.com> Message-ID: <48E20254.550C.0078.0@leopards.k12.ar.us> Why remove the .mozilla directory if it is empty and/or will just be re-created on the next run? Just wondering. . . DS Doug Simpson Technology Specialist De Queen Public Schools De Queen, AR simpsond at leopards.k12.ar.us "A Dollar Saved is a Dollar Earned" >>> Tim Born 9/30/2008 10:01 AM >>> Good use of find. > find /home_student/tutorgroup/${w$}/{x}/.mozilla/ -exec rm -Rf {} \; Can we simplify this to a one-liner? I believe you said you wanted the .mozilla directory and all contents deleted? The above will leave the .mozilla directory in place. find /home_student -name .mozilla -exec rm -Rf {} \; > I'd like the script to remove the .mozilla directory completely Brian Chivers wrote: > I've got a issue where I've had to tweak the setting for firefox but > of cause some users have been using it and they're not working as they > have settings in ~/.mozilla. > > I've looked at the script on this page > http://k12ltsp.org/mediawiki/index.php/Cache_Removal and tweaked it > slightly. > > Our users homes all live in a structure like this > > /home_student/tutorgroup/xx-xx/username > > where xx-xx is a tutorgroup such as 3P-SC > > so you have > > /home_student/tutorgroup/3P-SC/k999999 > > I'd like the script to remove the .mozilla directory completely so > next time they start up it'll copy it over again for them hopefully > fixing the problems. > > Can anyone see any problems (I'll be amazed if there arent' any *grin*) > > Thanks > Brian > > #!/bin/bash > for w in `ls /home_student/tutorgroup`; do > echo "doing $w ....." > for x in `ls /home_student/tutorgroup/${w}`; do > echo "Doing $x ..." > find /home_student/tutorgroup/${w$}/{x}/.mozilla/ -exec > rm -Rf {} \; > done > done > > ------------------------------------------------------------------------------------------------ > > The views expressed here are my own and not necessarily > > the views of Portsmouth College > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see From nils at breun.nl Tue Sep 30 15:49:55 2008 From: nils at breun.nl (Nils Breunese) Date: Tue, 30 Sep 2008 17:49:55 +0200 Subject: [K12OSN] Help with a script In-Reply-To: <48E23F5C.7060804@deltacfax.com> References: <48E23408.1060508@portsmouth-college.ac.uk> <48E23F5C.7060804@deltacfax.com> Message-ID: <4E71DE01-9A77-4F0A-ACAE-87F0623E4C20@breun.nl> Tim Born wrote: > Good use of find. >> find /home_student/tutorgroup/${w$}/{x}/.mozilla/ -exec rm -Rf {} \; > Can we simplify this to a one-liner? I believe you said you wanted > the .mozilla directory and all contents deleted? > The above will leave the .mozilla directory in place. > > find /home_student -name .mozilla -exec rm -Rf {} \; You could add '-type d' to make sure you're removing only directories. Nils Breunese. From brian at portsmouth-college.ac.uk Tue Sep 30 16:01:47 2008 From: brian at portsmouth-college.ac.uk (Brian Chivers) Date: Tue, 30 Sep 2008 17:01:47 +0100 Subject: [K12OSN] Help with a script In-Reply-To: <48E20254.550C.0078.0@leopards.k12.ar.us> References: <48E23408.1060508@portsmouth-college.ac.uk> <48E23F5C.7060804@deltacfax.com> <48E20254.550C.0078.0@leopards.k12.ar.us> Message-ID: <48E24D6B.9040806@portsmouth-college.ac.uk> I want to delete the lot as some users have in correct user.js files & extra's that I want to remove. Brian Doug Simpson wrote: > Why remove the .mozilla directory if it is empty and/or will just be re-created on the next run? > > Just wondering. . . > > DS > > Doug Simpson > Technology Specialist > De Queen Public Schools > De Queen, AR > simpsond at leopards.k12.ar.us > "A Dollar Saved is a Dollar Earned" > > > >>>> Tim Born 9/30/2008 10:01 AM >>> >>>> > Good use of find. > > >> find /home_student/tutorgroup/${w$}/{x}/.mozilla/ -exec rm -Rf {} \; >> > > Can we simplify this to a one-liner? I believe you said you wanted the > .mozilla directory and all contents deleted? > The above will leave the .mozilla directory in place. > > find /home_student -name .mozilla -exec rm -Rf {} \; > > >> I'd like the script to remove the .mozilla directory completely >> > > > > Brian Chivers wrote: > > >> I've got a issue where I've had to tweak the setting for firefox but >> of cause some users have been using it and they're not working as they >> have settings in ~/.mozilla. >> >> I've looked at the script on this page >> http://k12ltsp.org/mediawiki/index.php/Cache_Removal and tweaked it >> slightly. >> >> Our users homes all live in a structure like this >> >> /home_student/tutorgroup/xx-xx/username >> >> where xx-xx is a tutorgroup such as 3P-SC >> >> so you have >> >> /home_student/tutorgroup/3P-SC/k999999 >> >> I'd like the script to remove the .mozilla directory completely so >> next time they start up it'll copy it over again for them hopefully >> fixing the problems. >> >> Can anyone see any problems (I'll be amazed if there arent' any *grin*) >> >> Thanks >> Brian >> >> #!/bin/bash >> for w in `ls /home_student/tutorgroup`; do >> echo "doing $w ....." >> for x in `ls /home_student/tutorgroup/${w}`; do >> echo "Doing $x ..." >> find /home_student/tutorgroup/${w$}/{x}/.mozilla/ -exec >> rm -Rf {} \; >> done >> done >> >> ------------------------------------------------------------------------------------------------ >> >> The views expressed here are my own and not necessarily >> >> the views of Portsmouth College >> _______________________________________________ >> K12OSN mailing list >> K12OSN at redhat.com >> https://www.redhat.com/mailman/listinfo/k12osn >> For more info see >> > > > > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > > ------------------------------------------------------------------------------------------------ The views expressed here are my own and not necessarily the views of Portsmouth College