Ubuntu is an exceptionally popular OS, that uses the Linux kernel. Even though it's used mainly on PCs, its server version has been becoming more popular recently as well. Ubuntu is one of the lightest Linux releases available and it's compatible with almost any hardware, that makes it a universal Operating System. It's also very stable and secure and has an at the very least a 5-year support life cycle, so you'll be able to get official safety and performance updates. Unlike a number of other Operating Systems, Ubuntu is distributed with no license fees and you can modify its core, and all of the countless packages it contains, in any way you see fit. This enables you to set up the right software environment for your web apps regardless of their requirements. Due to the popularity of the Operating System, Ubuntu has vast developer and user communities, so that you'll always find find plenty of materials on the world wide web related to any question or problem that you may have.