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

Peter Scheie peter at scheie.homedns.org
Sat Sep 20 11:41:44 UTC 2008

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.


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;  (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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