Ubuntu is a widespread desktop Operating System, that uses the Linux kernel, and its server edition is getting pretty popular as well. The reason is 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 pretty reliable and secure and all Long-Term Support (LTS) editions are supported for at least five years, which guarantees that you should have a protected and stable software environment on your website hosting server all of the time. Furthermore, Ubuntu has one of the largest user communities globally, which means that if you experience any kind of problem or have any question, you will discover lots of resources on the net. Among the basic advantages of this OS is that it features thousands of software packages which can be freely customized in accordance with your needs as well as the needs of the applications which you need to run, not to mention that you will not have to pay any license fees at any time. In comparison, other OS's are paid and their program code is not accessible, which means that it cannot be changed.