Ubuntu is a preferred desktop OS, which uses the Linux kernel, and its server edition is getting really popular as well. The reason is the fact that the OS is extremely light and it'll run on almost any hardware with no issues, utilizing its resources to the maximum. Ubuntu is also really reliable and secure and all the Long-Term Support (LTS) versions are supported for a minimum of five years, which guarantees that you will have a protected and stable software environment on your server all of the time. In addition, Ubuntu has one of the biggest user communities on the planet, so if you experience any issue or have any kind of question, you will discover lots of resources on the net. Among the basic benefits of this Operating System is that it features a large number of software packages which can be freely modified in accordance with your needs and / or the requirements of the apps which you would like to run, not to mention that you won't have to pay any kind of license fees any time. In comparison, other OS's are paid and their code isn't accessible, thus it cannot be changed.