Linux is a Unix-like and POSIX-compliant computer operating system assembled under the model of free and open source software development and distribution. The defining component of Linux is the Linux kernel, an operating system kernel first released on 5 October 1991 by Linus Torvalds.
This is a great video made by Assistant Professor Dr Mike Pound on how to make yourself root user on a computer using a buffer overflow attack in Kali Linux. …