"The Metasploit Project is one of the most popular penetration
testing suites available. If you're responsible for the security of
networked systems, you'll want to become familiar with Metasploit
Framework, so you can test your client PCs before someone with
malicious intent does it for you. I'll walk you through an example
exploit of a Windows XP system to show you how effortlessly
Metasploit can penetrate remote systems.
"I used the version 2.6, the current stable version. Grab the
stable tarball for Linux, unpack it, enter the just created
framework-2.6 subdirectory, and take a look around. Among other
things, you'll find nine interesting executable Perl
scripts..."