Ubuntu is a well known desktop Operating System, that uses the Linux kernel, but its server release is getting very popular too. The reason is the fact that the operating system is really light and it can function on almost any kind of hardware with no issues, utilizing its resources to the fullest. Ubuntu is also very reliable and secure and all of the Long-Term Support (LTS) versions are supported for at least 5 years, which warrants that you will have a safe and dependable software environment on your hosting server all of the time. In addition, Ubuntu has one of the biggest user communities globally, which means that if you experience any problem or have any kind of question, you'll discover a number of resources online. Among the main advantages of this OS is the fact that it comes with a large number of software packages that can be easily modified in accordance with your needs as well as the needs of the apps that you wish to run, not to mention that you won't have to pay any kind of license fees at any time. In contrast, other Operating Systems are paid and their code is not accessible, which means that it can't be changed.