Ubuntu is a very popular Operating System, that uses the Linux kernel. Even though it is used mainly on desktop machines, its server version has been becoming more popular these days as well. Ubuntu is among the lightest Linux distributions out there 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 a minimum of a 5-year support life cycle, so you're able to get official safety and performance updates. Unlike a number of other Operating Systems, Ubuntu is distributed without any license fees and you are able to modify its core, and any of the numerous packages it features, in any way you find fit. This allows you to set up the proper software environment for all of your web apps regardless of their requirements. As a result of the popularity of the Operating System, Ubuntu has huge developer and user communities, which means that you will always find a lot of materials on the Internet related to any question or problem which you might have.