Ubuntu is an exceptionally popular Operating System, which employs the Linux kernel. Though it is used mainly on desktop machines, its server version has been becoming more popular these days as well. Ubuntu is one of the lightest Linux releases available and it supports almost any kind of hardware, that makes it a universal OS. It's 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 a number of other OS's, Ubuntu is distributed without any license fees and you are able to modify its core, as well as any of the thousands of packages it comes with, in any way you find fit. This will allow you to set up the optimal software environment for all your web applications irrespective of their requirements. Due to the popularity of the OS, Ubuntu has huge developer and user communities, so that you'll always find find numerous materials on the Internet about any question or problem that you might have.