Ubuntu is a well-liked desktop OS, that uses the Linux kernel, and its server edition is getting really popular too. The reason is that the operating system is extremely light and it will run on almost any hardware without any issues, utilizing its resources to the max. Ubuntu is also very reliable and secure and all of the Long-Term Support (LTS) releases are supported for at least five years, which warrants that you should have a risk-free and dependable software environment on your server all the time. Furthermore, Ubuntu has one of the largest user communities around the world, so if you experience any kind of problem or have any kind of question, you will discover numerous resources on the Internet. Among the major benefits of this Operating System is that it features thousands of software packages that can be freely changed according to your needs and / or the needs of the apps which you need to run, not to mention that you will not have to pay any kind of license fees at all. In contrast, other OS's are paid and their program code is not accessible, which means that it cannot be changed.