Ubuntu is a widely used desktop Operating System, which uses the Linux kernel, and its server edition is getting really popular as well. The reason is that the OS is extremely light and it can function on almost any kind of hardware without any issues, utilizing its resources to the fullest. Ubuntu is also very reliable and secure and all the Long-Term Support (LTS) releases are supported for a minimum of 5 years, which warrants that you will have a risk-free and stable software environment on your web hosting server all the time. In addition, Ubuntu has one of the largest user communities in the world, so if you experience any issue or have any kind of question, you will find a number of resources on the net. One of the main advantages of this OS is that it contains tens of thousands of software packages that can be easily changed in accordance with your needs as well as the needs of the apps that you need to run, not to mention that you won't have to pay any license fees any time. In contrast, other Operating Systems are paid and their program code isn't accessible, therefore it can't be changed.