Ubuntu is a widespread desktop Operating System, which uses the Linux kernel, but its server edition is getting really popular as well. The main reason is the fact that the operating system is very light and it can function on almost any kind of hardware with no issues, utilizing its resources to the max. Ubuntu is also extremely reliable and secure and all of the Long-Term Support (LTS) versions are supported for at least 5 years, which guarantees that you will have a secure and dependable software environment on your website hosting server all of the time. Furthermore, Ubuntu has one of the largest user communities on the planet, which means that if you experience any difficulty or have any kind of question, you'll discover a number of resources on the Internet. Among the main advantages of this Operating System is that it contains tens of thousands of software packages that can be freely changed according to your needs and / or the needs of the applications that you'd like to run, not to mention that you will not have to pay any 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.