You can also read my articles on my Blogspot, Click Here In this blog, we will see what is kali, how to use it, and its applications of it, and also see the steps of installation of Kali Linux in a virtual box. This blog is for only educational purposes that how Kali Linux is used and work. What is Kali? Kali is a Kernel that is open-source and is used for penetration testing, ethical hacking, and security research purpose. Kali is a bunch of solutions and free to available for information security professionals.