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How to modify the host name in centos7, many novices are not very clear about this. In order to help you solve this problem, the following editor will explain it in detail. People with this need can come and learn. I hope you can get something.

First: hostname hostname

01.hostname host name

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Hostname xxx

In this way, only the temporary hostname can be modified, and when the machine is rebooted, the hostname changes back.

Centos7 modified host name and the following version are not the same, this is very confused, du Niang is still very powerful.

The second kind: hostnamectl set-hostname xxx

Enter on the command line

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Hostnamectl set-hostname xxx

01.hostnamectl set-hostname xxx is modified in this way, and the host name can be changed permanently!

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