Introduction to network scanning with Nmap

This video, from the National Cybersecurity Training and Education (NCyTE) Center, provides an overview of the Nmap network scanner software. This free and open source software is "... used by system administrators and penetration testers to provide information about a network and attached devices." The video includes a broad overview on how to install, use, and interpret results from Nmap. The video runs 18:52 minutes in length.