Backtrack

Backtrack is a linux distro which is derived from slackware which is a merger of whax and auditor security collection. Backtrack two released on 6 March 2007 which include more than 300 security tools while the beta version of BackTrack 3 was released on 14 December 2007 on the third release is more focused on hardware support. While the version of backtrack 3 released on 19 June 2008 on backtrack 3 versions of this saint and the inserting nessus maltego while not included as well stick with kernel version 2.6.21.5. And the most recent backtrack 5.

example of using backtrack:
- networking
- security
- auditing
- hacking


and still much more . . . .