Ubuntu is a well-liked desktop Operating System, that uses the Linux kernel, and its server edition is getting really popular too. The reason is the fact that the operating system is amazingly light and it can run on almost any kind of hardware with no issues, utilizing its resources to the max. Ubuntu is also pretty reliable and secure and all the Long-Term Support (LTS) versions are supported for at least 5 years, which warrants that you will have a secure and stable software environment on your web hosting server at all times. Furthermore, Ubuntu has one of the biggest user communities around the world, which means that if you experience any problem or have any kind of question, you will discover lots of resources on the web. One of the basic benefits of this OS is that it contains a large number of software packages that can be freely customized according to your needs and / or the needs of the applications that you want 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 is not accessible, therefore it can't be changed.