The Matriux is a phenomenon that was waiting to happen. It is a fully featured security distribution consisting of a bunch of powerful, open source and free tools that can be used for various purposes including, but not limited to, penetration testing, ethical hacking, system and network administ…
http://www.toolswatch.org/2012/08/matriux-ec-centric-v2-49-beta-c0c0n-2012-released/