Ubuntu is a really popular OS, which makes use of the Linux kernel. Although it's used primarily on personal computers, its server version has been becoming more popular recently as well. Ubuntu is one of the lightest Linux releases out there and it is compatible with almost any kind of hardware, which makes it a universal OS. It's also very stable and secure and has an at the very least a 5-year support life cycle, so you will be able to receive official safety and performance updates. Unlike a number of other Operating Systems, Ubuntu is distributed with no license fees and you can customize its core, or all of the thousands of packages it contains, in any way you see fit. This allows you to install the proper software environment for all your web applications whatever their requirements. As a result of the popularity of the Operating System, Ubuntu has large developer and user communities, so you will always find lots of materials on the world wide web regarding any question or problem that you might have.