Ubuntu is a widespread desktop OS, that uses the Linux kernel, but its server version is getting pretty popular as well. The main reason is that the OS is really light and it'll run on almost any hardware without any issues, utilizing its resources to the maximum. Ubuntu is also extremely reliable and secure and all Long-Term Support (LTS) versions are supported for a minimum of five years, which warrants that you will have a safe and dependable software environment on your web hosting server all of the time. Also, Ubuntu has one of the biggest user communities worldwide, so if you experience any kind of problem or have any kind of question, you'll find numerous resources online. One of the basic advantages of this Operating System is the fact that it contains thousands of software packages that can be freely adjusted according to your needs as well as the requirements of the apps that you would like to run, not to mention that you will not have to pay any kind of license fees at any time. In contrast, other Operating Systems are paid and their code isn't accessible, thus it cannot be changed.