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Learn how Nmap port scanning works by running practical scans against a local machine and an authorized test target. Understand open, closed, and filtered ports, service detection, useful scan options, and how to turn Nmap output into actionable security information.

Learn Nmap from the ground up with practical examples covering host discovery, port scanning, service detection, OS detection, NSE scripts, scan results, common options, troubleshooting, and safe security-auditing workflows.