I noticed from last month's Ruby on Rails vulnerabilities that many in the HN crowd had not heard of or used the Metasploit Framework before. I wrote a comment "What is Metasploit?" that many of you found helpful. This blog post expands on that comment to help you get started playing with Metasploit through the Armitage GUI. The goal--next time something that hits close to home is made available, you'll know how to jump in and test the attack against your own systems.