Ubuntu is a popular desktop OS, that uses the Linux kernel, but its server release is getting quite popular as well. The reason is the fact that the OS is amazingly light and it will run on almost any hardware with no issues, utilizing its resources to the max. Ubuntu is also extremely reliable and secure and all the Long-Term Support (LTS) versions are supported for at least five years, which warrants that you will have a protected and dependable 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 question, you'll discover a number of resources on the web. One of the basic benefits of this OS is the fact that it features a large number of software packages that can be easily customized according to your needs as well as the needs of the applications which you want to run, not to mention that you won't have to pay any kind of license fees at any time. In contrast, other Operating Systems are paid and their program code is not accessible, which means that it can't be changed.