redhat linux firewall issues

[dmaurer]

Hy, I have set up a Dell pc to run as a Redhat linux server. I use Redhat 7.3. I installed it as a server, with no firewalling, but ... clients can go on the internet trough squid but some win2000 clients have to go on the internet using a default gateway and a dns server. Bind works, but the clients just can't connect to the internet without using squid. Is there something I have to change in the configuration? Ipchains and Ip tables are already disabled. Thanx in advance.

[jumpedintothefire]

enable iptables and run a masq/firewall script, search this site for some examples.....

[dmaurer]

Oke I've enabled ip tables through webmin, but were do I find a masq/firewall script? and were do i run/put it?

[dmaurer]

Through webmin 1.000 i've gone to networking/linux firewall I've set all (forward, input and output) to accept always on any port, but I still can't connect to the internet using only the default gateway and dns server. Default gateway and dns is set to the network card with the local ip adress and there is another network card with the external ip adresses and dns servers etc.:confused:

[jumpedintothefire]

A quick search turned up this.....

http://linuxnewbie.org/forum/showthread.php?s=&threadid=62063

there should be a NHF (newbie help file)

[dmaurer]

I followed the instructions in the link and it worked. Thanx.:D