[K12OSN] K12LTSP 5 EL: no Web access for non-terminal clients

Sun Sep 21 05:50:56 UTC 2008

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 <peter at scheie.homedns.org> wrote:

> From: Peter Scheie <peter at scheie.homedns.org>
> 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." <k12osn at redhat.com>
> 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
> <rob.owens at biochemfluidics.com> wrote:
> > 
> >> From: Rob Owens
> <rob.owens at biochemfluidics.com>
> >> 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." <k12osn at redhat.com>
> >> 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
> >>>
> >>>
> >>>       
> >>>
> >>>
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