инструмент исследования сети и сканер безопасности / портов (Network exploration tool and security / port scanner)
NMAP BOOK
While this reference guide details all material Nmap options, it
can't fully demonstrate how to apply those features to quickly
solve real-world tasks. For that, we released Nmap Network
Scanning: The Official Nmap Project Guide to Network Discovery
and Security Scanning. Topics include subverting firewalls and
intrusion detection systems, optimizing Nmap performance, and
automating common networking tasks with the Nmap Scripting
Engine. Hints and instructions are provided for common Nmap tasks
such as taking network inventory, penetration testing, detecting
rogue wireless access points, and quashing network worm
outbreaks. Examples and diagrams show actual communication on the
wire. More than half of the book is available free online. See
https://nmap.org/book
