Ubuntu is a well-liked desktop Operating System, which uses the Linux kernel, but its server edition is getting very popular too. The main reason is the fact that the OS is amazingly light and it will function on almost any hardware without any issues, utilizing its resources to the maximum. Ubuntu is also really reliable and secure and all Long-Term Support (LTS) editions are supported for at least five years, which warrants that you should have a safe and dependable software environment on your web hosting server at all times. In addition, Ubuntu has one of the biggest user communities around the world, which means that if you experience any kind of problem or have any question, you will find lots of resources on the net. One of the key advantages of this Operating System is the fact that it contains thousands of software packages which can be easily customized according to your needs and / or the requirements of the apps that you want to run, not to mention that you will not have to pay any license fees any time. In contrast, other Operating Systems are paid and their program code is not accessible, thus it cannot be changed.