Ubuntu is a well-liked desktop OS, which uses the Linux kernel, and its server version is getting really popular too. The main reason is that the operating system is amazingly light and it'll function on almost any kind of hardware with no issues, utilizing its resources to the maximum. Ubuntu is also extremely reliable and secure and all of the Long-Term Support (LTS) editions are supported for at least five years, which warrants that you will have a secure and stable software environment on your web hosting server all of the time. Also, Ubuntu has one of the largest user communities around the world, which means that if you experience any issue or have any kind of question, you'll discover plenty of resources on the net. Among the major advantages of this OS is that it contains thousands of software packages which can be easily changed in accordance with your needs and the requirements of the applications which you need to run, not to mention that you won't have to pay any kind of license fees at all. In comparison, other OS's are paid and their code is not accessible, therefore it can't be changed.