Metasploit is an amazingly powerful and free security tool that must be on the weapons rack of the penetration tester. For the casual cyber-jutsu practitioner, who is not seeking to engage in hard core hacking, contract penetration testing, or cyber-warfare, Metasploit is not a required tool. However, we'll be looking at this tool in detail. Green belts interested in becoming CyberCede Samurai should understand what Metasploit is, and learn to execute reconnaissance and attacks to deliver payloads from within the framework.
To emphasize the importance of your familiarity with this tool: Green Belts seeking their Black belts, and ultimately the title of CyberCede Samurai, will endeavor to write their own exploit in Ruby for use within the Metasploit Framework (msf) or modify/enhance a previously written Metasploit exploit for use against a particular target. Actual Ruby code should be posted in the applicable hacking code blog, when the time comes.
You should download and install Metasploit if you have not already done so.
Don't forget to breathe!