Shorewall firewall

[cloverm]

I finally figured it out and understand how to configure it. Webmin has a nice GUI interface for it. Once you understand the concept, it's a breeze to set it up (reading the documentation really helps ;D).

http://www.shorewall.net

Ok, I'm back to Earth now ....

[Guitarlynn]

Yep, Shorewall can really simplify some complicated setups
as well with the filtering. Tom is a pretty good friend of mine,
and LEAF "Bering" has been using Shorewall for over a year now.

~Guitarlynn
http://leaf.sourceforge.net

[elovkoff]

If you're looking for the nice GUI to manage iptables then try www.fwbuilder.org. That was an eye-opener for me (I have a lot of Checkpoint background and wanted to set up a linux firewall without digging deep into command line syntax)