Endian Firewall Community Updated at October 28, 2009 By Endian S.r.l. A turn-key Linux security distribution based on IPCop and Red Hat
fwknop Updated at September 9, 2009 By Michael Rash fwknop implements an authorization scheme that requires only a single encrypted packet to communicate various pieces of info.
IPFire Updated at June 23, 2009 By ipfire.org a linux based firewall distribution with a lot of extras
Vyatta Updated at March 10, 2009 By Vyatta Inc. A Linux-based router and firewall offering a free community edition and two commercial editions with support.
fwdaemon Updated at August 5, 2008 By Zbigniew Michal Kempczynski fwdaemon is a Linux networking firewall runtime backend.
ips-qos Updated at April 26, 2008 By cool solutions ips-qos software is a flexible firewall and traffic shaping tool.