Ubuntu is a popular desktop Operating System, which uses the Linux kernel, and its server version is getting pretty popular as well. The main reason is that the OS is amazingly light and it will run on almost any kind of hardware without issues, utilizing its resources to the maximum. Ubuntu is also really reliable and secure and all the Long-Term Support (LTS) editions are supported for at least 5 years, which guarantees that you will have a secure and dependable software environment on your web hosting server at all times. In addition, Ubuntu has one of the largest user communities around the world, which means that if you experience any difficulty or have any kind of question, you'll discover lots of resources online. One of the basic benefits of this OS is the fact that it features thousands of software packages that can be freely changed in accordance with your needs and the requirements of the apps which you wish to run, not to mention that you won't have to pay any license fees at all. In contrast, other OS's are paid and their program code isn't accessible, therefore it cannot be changed.