Daniel Miessler wrote a nice overview of new nmap features. I highly recommend this to anyone just getting started or looking for a guide for nmap.

At Fyodor’s talk last week at Blackhat he talked about the research he’s been doing, and the ways that research has helped him to improve Nmap. I was lucky enough to attend, and even got to chat with him briefly and get a signed copy of his new book.

Anyway, after receiving numerous complaints over the years regarding performance, he did some colossal scans of the Internet in order to see how Nmap handled extremely large address ranges. What follows is a collection of the most interesting features he added, and information he learned, while doing his research.

Read more