Ubuntu is a well known desktop Operating System, that uses the Linux kernel, but its server release is getting very popular too. The reason is that the operating system is very light and it will run on almost any hardware without any issues, utilizing its resources to the fullest. Ubuntu is also extremely reliable and secure and all Long-Term Support (LTS) editions are supported for at least five years, which warrants that you will have a safe and stable software environment on your web hosting server all of the time. Also, Ubuntu has one of the biggest user communities worldwide, so if you experience any issue or have any kind of question, you will discover lots of resources on the Internet. One of the major benefits of this Operating System is the fact that it includes tens of thousands of software packages which can be easily customized in accordance with your needs as well as the requirements of the apps which you want 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 isn't accessible, therefore it can't be changed.