About CentOS:
CentOS which stands for Community Enterprise Operating System and it’s an open source OS. CentOS is a distribution of Linux Operating System based on Red Hat Enterprise Linux(RHEL). CentOS exists to provide a free enterprise class computing platform and strives to maintain 100% binary compatibility with its upstream source, Red Hat. It is one of the most popular Linux Distributions in the hosting industry. Due to its binary compatibility with RHEL, it is highly compatible with most Linux software. Most of the hosting control panels use CentOS as the preferred Linux distribution. Now you will see, how to check server centOS version.
Command to check your Server’s CentOS Version:
The easiest way to check the Server’s CentOS Version is by using command-line.
Log into the server using SSH and run the command cat /etc/centos-release
You can also use this command cat /etc/redhat-release
The above command will work with all CentOS versions. This is the best way to keep track of CentOS versions when running a CentOS server.