Ubuntu is an extremely popular Operating System, which uses the Linux kernel. While it's used mainly on desktop machines, its server version has been gaining in popularity these days as well. Ubuntu is one of the lightest Linux distributions you can get and it is compatible with almost any kind of hardware, which makes it a universal OS. In addition, it is very stable and secure and has an no less than a five-year support life cycle, so you can receive official security and performance updates. Unlike various other Operating Systems, Ubuntu is distributed devoid of license fees and you are able to modify its core, as well as all of the countless packages it comes with, in any way you see fit. This will enable you to install the proper software environment for all of your web applications whatever their specifications. Because of the popularity of the OS, Ubuntu has huge developer and user communities, which means that you will always find numerous materials on the web related to any question or problem which you might have.