fw-rulegen RPM package for Red Hat / Fedora / Aurora

It's a GPL'd perlscript that generates an iptables-restoreable iptables
config. The config is located in /etc/fw/, using three files: rules.conf,
global.conf and interfaces.conf. This config is read by fw-rulegen.pl. It
then outputs the result on STDOUT, it just suffices to pipe it through
iptables-restore and presto.

I have an init.d alike script for it to start/stop the firewall. You can
find it here. Beware though, I use a homedeveloped init.d-alike system, so
you will need to modify the script to make it work.