Ubuntu is a preferred desktop OS, that uses the Linux kernel, but its server release is getting pretty popular as well. The reason is that the operating system is amazingly light and it will run on almost any hardware with no issues, utilizing its resources to the fullest. Ubuntu is also really reliable and secure and all of the Long-Term Support (LTS) editions are supported for at least 5 years, which warrants that you will have a secure and dependable software environment on your web hosting server at all times. In addition, Ubuntu has one of the largest user communities on earth, so if you experience any problem or have any question, you will find lots of resources on the web. One of the major benefits of this OS is the fact that it features thousands of software packages which can be freely changed according to your needs and the requirements of the applications that you'd like to run, not to mention that you won't have to pay any license fees any time. In contrast, other Operating Systems are paid and their program code is not accessible, thus it can't be changed.