WHAT IS Nmap ( Network Mapper ) is a network scanner created by Gordon Lyon (also known by his pseudonym Fyodor Vaskovich ). Nmap is used to discover hosts and services on a computer network by sending packets and analyzing the responses Nmap is a Network maping tools. Original author(s) Gordon Lyon ( Fyodor ) Initial release September 1997 ; 25 years ago Stable Release 7.92 / 7 August 2021 ; 12 months ago Repository Written in C, C++, Python, Lua Operating System Cross-platform Available in English Type Network security License NPSL or modified GPLv2 or proprietary Website nmap .org Nmap provides a number of features for probing computer networks, including host discovery and service and operating system detection. These features are extensible by scripts that provid...