The following column centos tutorial will introduce to you the method of changing the host name in CentOs7.3. I hope it will be helpful to friends in need!
CentOs7.3 Modify the host name
The first
Command format
hostname <hostname> $ hostname node1
This way, only The temporary host name can be modified. When the machine is restarted, the host name changes back.
Second
Command format
hostnamectl set-hostname <hostname> $ hostnamectl set-hostname node1
Restart the server
$ reboot
Reconnect the server
$ hostname node1
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