Ubuntu is a widely used desktop OS, that uses the Linux kernel, and its server version is getting really popular too. The main reason is the fact that the OS is really light and it'll run on almost any kind of hardware with no issues, utilizing its resources to the maximum. Ubuntu is also pretty reliable and secure and all 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 website hosting server at all times. Furthermore, Ubuntu has one of the largest user communities around the world, which means that if you experience any difficulty or have any kind of question, you'll discover numerous resources on the Internet. Among the main benefits of this OS is the fact that it has numerous software packages that can be easily changed in accordance with your needs and / or the requirements of the applications that you would like to run, not to mention that you will not have to pay any kind of license fees at all. In contrast, other Operating Systems are paid and their code isn't accessible, therefore it cannot be changed.