Ubuntu is an exceptionally popular Operating System, that employs the Linux kernel. Even though it's used mainly on desktops, its server version has been rising in popularity lately as well. Ubuntu is one of the lightest Linux releases you can get and it's compatible with almost any kind of hardware, that makes it a universal OS. It is also very stable and secure and has an at least a 5-year support life cycle, so you are able to receive official security and performance updates. Unlike many other Operating Systems, Ubuntu is distributed without any license fees and you will be able to customize its core, as well as any of the numerous packages it contains, in any way you find fit. This will allow you to set up the ideal software environment for all your web apps whatever their requirements. As a result of the popularity of the OS, Ubuntu has vast developer and user communities, so you'll always find find a lot of materials online related to any question or problem that you might have.