Nmap is a command-line network scanning utility for discovering and mapping networks, hosts, and services. It helps users perform network vulnerability assessments and improve network security.
Nmap works by sending data packets to a specified port and IP address. It waits for a response, analyses it, and provides a report
Features
Network hosts identification by protocol or port.
Ping scan for host testing.
Fast scan for quick port scanning.
TCP/IP stack fingerprinting determines a network device’s OS and hardware elements. 
Pricing
Nmap is a free and open-source application.

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Nmap is a free, open-source command-line utility for network scanning and discovery. It identifies network hosts, services, and ports by sending data packets and analyzing responses. Key features include ping scans, fast port scanning, and TCP/IP stack fingerprinting for OS detection, making it valuable for network vulnerability assessments and security improvements.

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