Ubuntu is a popular desktop Operating System, which uses the Linux kernel, and its server edition is getting quite popular as well. The reason is the fact that the OS is very light and it'll function on almost any hardware with no issues, utilizing its resources to the maximum. Ubuntu is also very reliable and secure and all of the Long-Term Support (LTS) releases are supported for at least five years, which guarantees that you will have a protected and dependable software environment on your server all of the time. Also, Ubuntu has one of the largest user communities on the planet, which means that if you experience any difficulty or have any question, you will discover numerous resources on the Internet. One of the key benefits of this Operating System is the fact that it features tens of thousands of software packages that can be freely modified according to your needs and / or the needs of the apps that you would like to run, not to mention that you won't have to pay any license fees at all. In contrast, other Operating Systems are paid and their code isn't accessible, which means that it cannot be changed.