Nmap Network Reconnaissance

Overview

Nmap (Network Mapper) is the industry-standard tool for network discovery, security auditing, and vulnerability assessment. This skill provides structured workflows for authorized reconnaissance operations including port scanning, service enumeration, OS fingerprinting, and vulnerability detection using Nmap Scripting Engine (NSE).

IMPORTANT: Network scanning may be disruptive and must only be conducted with proper authorization. Always ensure written permission before scanning networks or systems you do not own.

Quick Start

Basic host discovery and port scanning:

# Quick scan of common ports
nmap -F <target-ip>

# Scan top 1000 ports with service detection
nmap -sV <target-ip>