control of internet access

[Kai Wüstermann]

Moin all together!

I answer to my first mail to say thank you for your answers.

The edubuntu server will be the only one in the LAN an will have two
network cards. One for the thin clients and one for the Internet.

To setup a second server as router is not a solution for me. I don't
want to administrate two machines and it would waste so much energy...

I checked the site Dansquard and could not find a real advantage against
squidguard. 

So I configured a squid/squidgard proxy on my test system as it is
described in german on 
http://wiki.ubuntuusers.de/Squid
http://wiki.ubuntuusers.de/squidGuard

It works if the user uses localhost:3128 as proxy. I think it's a
solution to redirect port 80 to 3128 on interface lo and eth0.
Alternatively you can overwrite prefs.js every time you start firefox to
be sure the proxy is set. But the you have to watch every firefox
update.

The only thing I did not solved yet is to use systemgroups to control
the access in squidguard. But this should not be so difficult. (I know,
I shouldn't say things like that;-)

Thank you
Kai