Kali Linux (Kali) is a Linux distribution system that was developed with a focus on the penetration testing task. Previously, Kali Linux was known as BackTrack, which itself is a merger between three different live Linux penetration testing distributions: IWHAX, WHOPPIX, and Auditor.
BackTrack is one of the most famous Linux distribution systems, as can be proven by the number of downloads that reached more than four million as of BackTrack Linux 4.0 pre final.
Kali Linux Version 1.0 was released on March 12, 2013. Five days later, Version 1.0.1 was released, which fixed the USB keyboard issue. In those five days, Kali has been downloaded more than 90,000 times.
As a Mac user for the last several years, I have come to appreciate virtualization software and the added flexibility they bring to the Mac user. VMware and Parallel Desktop are the two standards for Mac users. The videos show exactly how to install Kali Linux 2 on VMware 8 and Parallel Dekstop 11. These are all new major upgrades released in August 2015.