Ubuntu is a widely used desktop Operating System, that uses the Linux kernel, and its server release is getting pretty popular as well. The reason is that the operating system is really light and it will run on almost any hardware without any issues, utilizing its resources to the maximum. Ubuntu is also extremely reliable and secure and all the Long-Term Support (LTS) versions are supported for at least 5 years, which guarantees that you should have a protected and stable software environment on your hosting server all the time. Also, Ubuntu has one of the biggest user communities on the planet, which means that if you experience any issue or have any kind of question, you will find a number of resources on the Internet. One of the key advantages of this OS is that it includes a great number of software packages which can be easily modified in accordance with your needs as well as the requirements of the apps that you need to run, not to mention that you will not have to pay any kind of license fees any time. In comparison, other Operating Systems are paid and their code isn't accessible, therefore it can't be changed.