RHEL / Centos Linux 7: Change and Set Hostname Command

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To change the hostname of a CentOS/RHEL 7 system, you can use the following commands:

# hostnamectl set-hostname newhostname

Replace “newhostname” with the desired hostname for your system.

In addition to changing the hostname, you may also need to edit the /etc/sysconfig/network file to set the hostname permanently:

# nano /etc/sysconfig/network

Update the line that starts with HOSTNAME= to include your new hostname. Save and close the file, then restart the network services for the changes to take effect:

# systemctl restart network

You can verify the new hostname by running the hostnamectl command:

# hostnamectl

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