Ubuntu is a popular desktop OS, which uses the Linux kernel, and its server version is getting pretty popular too. The reason is that the operating system is amazingly light and it'll run on almost any hardware without issues, utilizing its resources to the maximum. Ubuntu is also very reliable and secure and all the Long-Term Support (LTS) versions are supported for a minimum of 5 years, which warrants that you will have a risk-free and stable software environment on your website hosting server all of the time. Also, Ubuntu has one of the largest user communities on earth, which means that if you experience any difficulty or have any question, you will discover lots of resources on the Internet. One of the basic benefits of this OS is the fact that it includes a great number of software packages that can be easily modified according to your needs and the needs of the applications that you would like to run, not to mention that you won't have to pay any kind of license fees at any time. In comparison, other OS's are paid and their program code is not accessible, thus it cannot be changed.