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Re: [K12OSN] transparent proxy setup



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
> 
> 
> 
> 
> 
> 
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