Ubuntu is an exceptionally popular Operating System, that makes use of the Linux kernel. Though it's used mainly on personal computers, its server version has been becoming more popular recently as well. Ubuntu is among the lightest Linux distributions available 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 the very least a 5-year support life cycle, so you'll be able to get official security and performance updates. Unlike numerous other Operating Systems, Ubuntu is distributed with no license fees and you will be able to modify its core, and / or all of the numerous packages it contains, in any way you find fit. This allows you to set up the right software environment for your web applications regardless of their requirements. Due to the popularity of the OS, Ubuntu has huge developer and user communities, so you can always find find numerous materials on the world wide web about any question or problem that you might have.