How to change the host name in CentOs7.3

The following column centos tutorial will introduce to you how to modify the host name in CentOs7.3. I hope it will be helpful to friends in need!

The first

command format

hostname <hostname>
$ hostname node1

In this way, only the temporary host name can be modified. After restarting the machine, The host name has changed again.

Second

Command format

hostnamectl set-hostname <hostname>
$ hostnamectl set-hostname node1

Restart the server

$ reboot

Reconnect the server

$ hostname
node1

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