Detailed explanation of how to modify the host name in CentOs7.3

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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