Ubuntu is a widely used desktop Operating System, which uses the Linux kernel, and its server release is getting pretty popular as well. The main reason is that the operating system is extremely light and it'll run on almost any hardware without any issues, utilizing its resources to the fullest. Ubuntu is also pretty reliable and secure and all of the Long-Term Support (LTS) versions are supported for at least 5 years, which guarantees that you will have a risk-free and dependable software environment on your hosting server all of the time. Furthermore, Ubuntu has one of the largest user communities around the world, which means that if you experience any issue or have any question, you'll discover plenty of resources on the web. One of the basic benefits of this Operating System is the fact that it has tens of thousands of software packages which can be freely modified in accordance with your needs and / or the needs of the applications that you'd like to run, not to mention that you will not have to pay any kind of license fees any time. In comparison, other OS's are paid and their code is not accessible, thus it cannot be changed.