Set Hostname in Centos 7

CentOS 7 only allows Fully Qualified Domain Names (FQDN’s). Acceptable values include lower-case letters a to z, numbers 0 to 9, the period, and the hyphen, and between 2 and 63 characters.

At the console, type:

hostnamectl set-hostname my.new-hostname.server

NOTE: Replace my.new-hostname.server with your chosen hostname.

Check the Hostname

hostnamectl
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