Ubuntu is a very popular OS, which employs the Linux kernel. While it is used primarily on desktops, its server version has been becoming more popular nowadays as well. Ubuntu is among the lightest Linux distributions you can get and it is compatible with almost any hardware, that makes it a universal OS. In addition, it is very stable and secure and has an no less than a five-year support life cycle, so you'll be able to get official security and performance updates. Unlike alternative Operating Systems, Ubuntu is distributed devoid of license fees and you can customize its core, and / or any of the numerous packages it comes with, in any way you see fit. This enables you to install the proper software environment for your web apps whatever their specifications. Because of the popularity of the OS, Ubuntu has vast developer and user communities, so you will always find numerous materials on the Internet related to any question or problem which you may have.