Nmap is one of the most popular free and open-source command-line utility network scannings. Nmap can be used to discover hosts and service use by the system on the same network.
A Nmap tool helps you to audit local and remote server open ports and the network details.
It is available in all major operating system such as Windows, Linux, and macOS. There is another nmap product known as zenmap, which is GUI based version of nmap.
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