Ubuntu is a really popular Operating System, which employs the Linux kernel. Although it's used primarily on personal computers, its server version has been becoming more popular lately as well. Ubuntu is one of the lightest Linux distributions out there and it's compatible with almost any hardware, that makes it a universal Operating System. In addition, it is very stable and secure and has an at least a five-year support life cycle, so you are able to receive official protection and performance updates. Unlike alternative OS's, Ubuntu is distributed with no license fees and you will be able to customize its core, as well as any of the numerous packages it comes with, in any way you see fit. This enables you to set up the proper software environment for all of your web applications whatever their specifications. Because of the popularity of the Operating System, Ubuntu has huge developer and user communities, so you will always find numerous materials online regarding any question or problem that you might have.