NM
Nmap
Network discovery and security auditing tool. Port scanning, OS detection, and vulnerability discovery.
About Nmap
Nmap (Network Mapper) is a free and open source utility for network discovery and security auditing. It uses raw IP packets to determine available hosts, services, operating systems, packet filters, and dozens of other characteristics.
Key Features
✓ Port scanning & service detection
✓ OS fingerprinting
✓ NSE scripting engine
✓ Traceroute & host discovery
✓ Output in XML, grepable, normal
✓ Zenmap GUI available
Why choose Nmap?
Nmap is an open source alternative to Masscan, Angry IP Scanner. Licensed under NPSL, it gives you full access to the source code and the freedom to modify, self-host, and contribute. It is available as a desktop or web application.