CentOS is one of the most widely used Operating Systems for hosting servers. It is one of the many Linux distributions in existence, yet what distinguishes it from all of the others is its long-term support, which ensures that you will always have a dependable and safe Operating System. Each CentOS version that is released is supported for 10 years, that is a lot longer than with another OS out there. CentOS also has a much more numerous developer community than other distributions, therefore in case you experience any kind of problem or have some questions, you are able to quickly find the details which you need. CentOS is considered to be one of the best server Operating Systems, due to the fact that it's very stable and protected, that makes it really reliable even if you host confidential data. Since it is open-source, you are able to modify any part of it and customize it according to your requirements, not to mention that the total cost for a CentOS-based server will be lower, as you will not need to pay license fees of any type.