Nmap (Network Mapper) is a powerful open-source tool used for network discovery and security auditing. It allows administrators and security professionals to scan networks to identify hosts, services, operating systems, and potential vulnerabilities. Nmap supports a wide range of scanning techniques, such as TCP connect, SYN stealth, UDP, and OS fingerprinting, making it highly versatile for both defensive and offensive security tasks. In addition to command-line use, Nmap offers a graphical interface called Zenmap for easier visualization of scan results. Overall, Nmap is an essential tool for network monitoring, troubleshooting, and penetration testing.
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