The Ubuntu is a free and open source operating system and Linux distribution which is based on Debian. The Ubuntu is offered in three official editions such as Ubuntu Desktop for personal computers, Ubuntu Server for servers and the cloud, and Ubuntu Core for Internet of things devices. The new releases of Ubuntu occur every six months, while long-term support (LTS) releases occur every two years. Ubuntu is the most popular operating system for the cloud, and is the reference operating system for OpenStack. Some of the default software present in the Ubuntu such as Firefox, Thunderbird, Transmission, and several lightweight games such as Sudoku and chess. In addition, some additional software packages can also be accessible from the built in Ubuntu Software previously Ubuntu Software Center as well as any other APT-based package management tools. The Ubuntu divides the software into four domains to reflect differences in licensing and the degree of support available. Some of the unsupported applications can also receive updates from the community members but not from the Canonical Ltd.