Ubuntu is a well known desktop Operating System, which uses the Linux kernel, and its server edition is getting pretty popular as well. The main reason is the fact that the operating system is really light and it will run on almost any hardware without any issues, utilizing its resources to the maximum. Ubuntu is also really reliable and secure and all Long-Term Support (LTS) editions are supported for a minimum of five years, which guarantees that you should have a protected and dependable software environment on your hosting server all the time. Also, Ubuntu has one of the biggest user communities around the world, so if you experience any issue or have any question, you will find plenty of resources on the web. One of the main benefits of this OS is the fact that it contains thousands of software packages that can be freely adjusted according to your needs and / or the needs of the apps that you would like to run, not to mention that you won't have to pay any license fees any time. In comparison, other OS's are paid and their code isn't accessible, thus it can't be changed.