Ubuntu is an extremely popular Operating System, which employs the Linux kernel. Although it's used primarily on PCs, its server version has been gaining in popularity nowadays as well. Ubuntu is one of the lightest Linux releases you can get and it is compatible with almost any kind of hardware, which makes it a universal OS. It is also very stable and secure and has an at least a five-year support life cycle, so you can receive official protection and performance updates. Unlike various other OS's, Ubuntu is distributed without license fees and you'll be able to customize its core, or any of the numerous packages it comes with, in any way you find fit. This enables you to set up the ideal software environment for all your web apps irrespective of their specifications. As a result of the popularity of the OS, Ubuntu has large developer and user communities, which means that you will always find numerous materials online regarding any question or problem which you may have.