CentOS is among the most widespread Linux-based server Operating Systems today. It's preferred by various web hosting service providers, as it is very stable, secure and reliable, not to mention that it is freely customizable, since it's an open-source OS. CentOS is used for production servers, for the reason that it's also really quick and takes negligible resources. On top of that, you're able to install and run any kind of web app, as long as it can operate on a Linux equipment. When you use a CentOS-powered server, you'll be able to modify any part of your Operating System in accordance with your needs. The fact that CentOS is free of charge does mean that you will need to pay just for your server, but not for any kind of license fees, that will cut down your overall expenses. A vast team of developers and users is behind CentOS, so in case you ever have any kind of problems, or you are simply unsure how to perform a specific task, you'll be able to find a solution in no time. A significant benefit of the OS is also the fact that every single version is officially supported and updated for no less than 10 years, so you'll always have a safe and reliable software environment.