John was hoping to present this at the March meeting, but since there was too much Linuxfest things to work on, he decided to wait until April. Nessus is a commonly used tools by admins (And Hackers) to Audit servers for exploits. To get Nessus, goto: http://www.nessus.org to get more info and to download it.
This program also uses Nmap, another commonly used tools by admins(and Hackers) to Audit servers for ports that are open. You can find this program at: http://www.insecure.org – They also have the top ten security tools, which includes a link to Nessus, the number one on thier list.