Ubuntu is a popular desktop OS, that uses the Linux kernel, but its server version is getting very popular as well. The main reason is the fact that the OS is very light and it can run on almost any hardware with no issues, utilizing its resources to the maximum. Ubuntu is also pretty reliable and secure and all Long-Term Support (LTS) releases are supported for a minimum of 5 years, which guarantees that you will have a protected and dependable software environment on your server at all times. In addition, Ubuntu has one of the largest user communities worldwide, so if you experience any kind of problem or have any kind of question, you will find a number of resources on the Internet. Among the key benefits of this Operating System is that it includes a great number of software packages that can be freely adjusted according to your needs and / or the requirements of the apps which you want to run, not to mention that you will not have to pay any kind of license fees at any time. In contrast, other OS's are paid and their program code is not accessible, which means that it cannot be changed.