How to Change Hostname in CentOS 7
Manage the Hostname Using hostnamectl. You can run the following command to check for the current hostname Confirm that your current hostname, execute the following command [root@nod home]# hostnamectl change your current hostname, execute the following command [root@nod home]# hostnamectl set-hostname server1.mydomain.com –static That’s it! You’ve just changed your server hostname to server1.mydomain.com