Ubuntu is a widespread desktop Operating System, that uses the Linux kernel, and its server edition is getting quite popular too. The reason is that the operating system is extremely light and it can function on almost any kind of hardware without issues, utilizing its resources to the maximum. Ubuntu is also really reliable and secure and all of the Long-Term Support (LTS) versions are supported for a minimum of five years, which guarantees that you should have a protected and dependable software environment on your server all the time. In addition, Ubuntu has one of the largest user communities around the world, which means that if you experience any difficulty or have any kind of question, you'll discover numerous resources on the Internet. Among the main benefits of this Operating System is that it includes tens of thousands of software packages which can be easily modified in accordance with your needs and the requirements of the apps that you wish to run, not to mention that you won't have to pay any license fees at any time. In contrast, other Operating Systems are paid and their program code is not accessible, therefore it cannot be changed.