ferm is a tool to maintain and setup complicated firewall rules.
Version: 2.0.6ferm is a tool to maintain and setup complicated firewall rules. It allows one to reduce the sometime nasty task of carefully inserting rules and chains, thus enabling the firewall administrator to spend more time on developing good rules, and less time on the proper implementation of those rules.
Operating System: Linux
Ferm is written in perl, so it requires perl5, and one of the kernel firewall programs (ipchains/iptables/ipfwadm) to work, although you may test firewall rule generation on any platform that supports perl.
For a good understanding how ferm works: check out the examples listed on top of this page.