Ubuntu is a popular desktop Operating System, that uses the Linux kernel, but its server release is getting very popular as well. The main reason is that the operating system is extremely light and it can run on almost any kind of hardware without issues, utilizing its resources to the fullest. Ubuntu is also extremely reliable and secure and all of the Long-Term Support (LTS) releases are supported for at least 5 years, which guarantees that you will have a risk-free and dependable software environment on your web hosting server all of the time. Furthermore, Ubuntu has one of the biggest user communities on earth, so if you experience any problem or have any kind of question, you will discover numerous resources on the web. Among the main advantages of this Operating System is that it has numerous software packages that can be easily modified in accordance with your needs and the requirements of the applications which you would like to run, not to mention that you will not have to pay any license fees at any time. In contrast, other Operating Systems are paid and their program code is not accessible, which means that it cannot be changed.