Ubuntu is a really popular Operating System, that uses the Linux kernel. While it's used primarily on desktops, its server version has been rising in popularity lately as well. Ubuntu is among the lightest Linux releases out there and it is compatible with almost any kind of hardware, which makes it a universal Operating System. It's also very stable and secure and has an a minimum of a five-year support life cycle, so you will be able to receive official security and performance updates. Unlike lots of other OS's, Ubuntu is distributed without any license fees and you're able to customize its core, and all of the numerous packages it comes with, in any way you see fit. This will enable you to install the right software environment for your web applications whatever their requirements. As a result of the popularity of the Operating System, Ubuntu has large developer and user communities, so that you'll always find find numerous materials on the web about any question or problem which you may have.