Nmap 5 released

Yes - a little late, I know. Nmap 5 was released on July 16th. Some of the new cool features include Ncat and Ndiff.

Ncat is like Netcat but supposedly better. I have not tried this so I don't want to comment on it.

Ndiff sounds really cool. You can run nmap scans on 2 different occasions and use ndiff to see the difference. One immediate application I can think of would be tracking changes to a network over time. Perhaps run it daily and when a new service appears on a given host, use swatch or some script to alert you. Really cool new tool if you ask me. I can't wait to check this one out!