Professor Messer

Optimizing your Nmap Scan: The Nmap Ping Process

Nmap / April 30, 2007

If you’ve ever run Nmap alone on the command line with simply a target IP address, then you’re probably using an inefficient method of performing your Nmap scans. Nmap includes many different command line options so you can tailor each scan to the results that you need.

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Deciphering Nmap’s Port Descriptions

Nmap / April 28, 2007

Nmap is an incredibly useful tool, but it’s even more useful if you understand the results of an Nmap scan. After a scan is complete, Nmap will categorize each scanned port into one of six states; open, closed, filtered, open|filtered, closed|filtered, and unfiltered.

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