How to Change the Hostfile Entry in the Cent OS 7
In Order to change the host file entry in the Centos 7, you may need to login on the console using the root credentials and have to run the below command:
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# hostnamectl set-hostname
Once the above command is executed you may need to restart the network services to ensure the changes made persists in the system.
# /etc/init.d/network restart
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