$ whatis slackfire
SlackFire is an iptables script written especially for Slackware, my favourite Linux distribution in this corner of the Galaxy. The main purpose of the script is to protect a stand-alone machine or a small network with a stateful firewall. SlackFire isn’t perfect (yet) but have you seen a perfect iptables script?
Anyway, I hope that README and this screenshot will give an idea of how it works and how it doesn’t.SlackFire may be freely used, modified, and distributed under the terms of the GNU General Public License with any Linux distribution except Caldera and those RedHat releases which are not legally available for free download.Source: http://slackfire.berlios.de/