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nmap

Port scanning and service/version detection.

The reference network scanner. It discovers live hosts, open ports, service versions and, with its NSE scripts, checks for known vulnerabilities. Almost every box starts here: a full port scan and then a targeted version scan over whatever is open.

Family Network & port scanning

Flags -p- -sCV --min-rate -sU

Concepts Port Scanning (Nmap), From version to exploit

Cheatsheet Discovery & scanning

Installation

sudo apt install -y nmap

Useful commands6 commands

Appears in

Some machines where its use is documented; not an exhaustive list.