Nmap
Network Mapper, or Nmap for short, is a free, open-source network scanner and it’s one of the most recognized tools of this type used by networking experts and white hat hackers across the world. It’s also rather useful in tasks such as network inventory management, scheduling service upgrades, and server or service uptime monitoring. However, before going any further, let’s hear a bit about Nmap’s background. It was introduced for the first time in September 1997 by security expert Gordon Lyon in Phrack, an online magazine written by and for hackers. Originally written in C, C++, Python, and Lua programming languages, Nmap came a long way from its previous versions. Although Nmap started its journey as a Linux utility, today it’s available on multiple operating systems (OS’) including Windows, Mac OS, Gentoo, and BSD. Nevertheless, it’s still most popular among Linux enthusiasts. Visiting Nmap’s official site took us back to the not-so-distant past with a web design that withstoo...