Nmap — Network Mapper
Nmapis the world's most widely used network scanner. It discovers hosts, open ports, running services, operating systems, and vulnerabilities across any network — from a single machine to millions of addresses.
Module Sections
What is Nmap
History, architecture, capabilities, and why it is the industry standard for network scanning.
How Nmap Works
Deep dive into the 7 phases of an Nmap scan, from target specification through output generation.
Scan Types
TCP SYN, Connect, UDP, NULL, FIN, Xmas, ACK, and more. Learn which scan to use when.
Port States
Understanding open, closed, filtered, unfiltered, and ambiguous states in scan results.
Timing Templates
T0 through T5 explained. Balance speed against stealth and network reliability.
Common Flags
A comprehensive reference of every essential Nmap flag with real-world usage examples.
NSE Scripts
The Nmap Scripting Engine: vulnerability detection, service enumeration, and brute forcing with Lua.
Installation
Install Nmap on Linux, macOS, Windows, and from source. Verify your setup.
Usage Examples
Twelve real-world commands from basic host discovery to advanced decoy scanning.
Command Builder
Interactive tool to toggle flags, set targets, and generate copy-paste Nmap commands.
Pro Tips
Expert advice on stealth scanning, output formats, IDS evasion, and legal considerations.
Nmap Quiz
Test your knowledge with 17 multiple-choice questions covering all Nmap concepts.
Nmap Lab
Hands-on exercises where you type real Nmap commands for 12 different scenarios.
Quick Start
New to Nmap? Start with these three sections in order:
Important