TOOL TUTORIAL · Networking

How to install and use NMAP

Nmap (Network Mapper) is a powerful, free, and open-source tool used for network discovery and security auditing. It is widely trusted by cybersecurity professionals to identify hosts and services within a network, effectively creating a detailed "map" of the infrastructure. Wit…

Quick install: sudo apt install nmap

Installation steps

  1. Open a terminal on Kali Linux or any Debian based system
  2. Run sudo apt update to refresh the package list
  3. Run sudo apt install nmap to install the scanner
  4. Type nmap --version to confirm it installed correctly
  5. Test it against scanme.nmap.org which is allowed for practice

See the full NMAP reference →