TheGraveyard.org

FireAngel

FireAngel is a relatively small script that should easy the pain of setting up a Linux 2.4.x iptables based firewall. It can do basic firewalling such as specifying unsafe and safe interfaces, host/subnets and ports. FireAngel can also set up Masquerading for you (over multiple interfaces if you really want that). There's no fancy documentation, just a quick installation guide (a couple of lines) and a documented configuration script. FireAngel just tries to do its work as good as it can, nothing more, nothing less...

Oh and by the way... This thing comes without guarantees! I do not and will never take responsibility for faults in the script or the configuration file.