Unlike most other desktop and server operating systems, Linux comes in a wide variety of flavors, each based on a common core of the Linux kernel and various GNU user space utilities. If you're running Linux servers -- or Linux desktops, for that matter -- you should understand the important differences and be discerning about which flavor of Linux is best suited to any given situation. This article will help you do just that.
Because Linux is open source software, the number of discrete Linux distributions is hard to know for sure. But a short list of major distributions account for the lion