Ubuntu is a popular desktop OS, which uses the Linux kernel, and its server release is getting pretty popular too. The reason is that the operating system is really light and it can function on almost any kind of hardware without any issues, utilizing its resources to the max. Ubuntu is also really reliable and secure and all Long-Term Support (LTS) releases are supported for a minimum of five years, which guarantees that you should have a risk-free and stable software environment on your hosting server all of the time. In addition, Ubuntu has one of the largest user communities on earth, so if you experience any problem or have any kind of question, you'll find a number of resources on the net. Among the basic benefits of this OS is that it features a great number of software packages which can be freely modified according to your needs as well as the requirements of the apps which you'd like to run, not to mention that you will not have to pay any license fees at any time. In contrast, other Operating Systems are paid and their code is not accessible, which means that it can't be changed.