CentOS is amongst the most widely used Linux-based server Operating Systems out there. It's preferred by a lot of 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 is also very quick and takes negligible resources. What's more, you can set up and run any kind of web app, as long as it can operate on a Linux equipment. If you use a CentOS-powered server, you will be able to adjust any part of the Operating System in accordance with your specifications. The fact that CentOS is free also means that you'll have to pay only for your server, and not for any license fees, which will cut down your overall expenses. A vast community of developers and users is behind CentOS, so in case you ever have any problems, or you're simply unsure how to perform a specific task, you'll be able to find a solution right away. An important benefit of the OS is also the fact that each release is officially supported and updated for at least 10 years, so you'll always have a safe and reliable software environment.