Ubuntu is like the most used Linux OS or a distro out there hence has a huge market share in the so called free and open source community. So in my opinion i coin it as the Windows of Linux or Gnu Linux.
A hacker is a highly skilled computer operator who uses bugs and exploits to break into computer systems and networks. An ethical hacker, on the other hand identifies vulnerabilities in computer systems and networks, and plugs these holes. Here’s a round-up of the best OS’s for ethical hacking and pen testing.