How to modify the host name in centos7

In hostnamectl 7, hostname has three forms: static (Statichostname) dynamic (Transient/dynamichostname) Alias (Prettyhostname) querying host name hostnamectl or hostctlstatus querying host name hostnamectl

Hostnamectl

In version 7, hostname has three forms:

Static host name)

Dynamic (Transient/dynamic host name)

Alias (Pretty host name)

 

Query host names

Hostnamectl or hostctl status

Hostnamectl status [-- static | -- transient | -- pretty]

 

 

Modify hostname

Hostnamectl set-hostname servername [-- static | -- transient | -- pretty]

 

Delete hostname

Hostnamectl set-hostname ""

Hostnamectl set-hostname "" -- static

Hostnamectl set-hostname "" -- pretty

 

 

Modify configuration file

Hostname name

Vim/etc/hostname

 

 

Modify through nmtui, and then restart hostnamed

Systemctl restart systemd-hostnamed

 

 

Modify through nmcui, and then restart hostnamed

Nmcli general hostname servername

Systemctl restart systemd-hostnamed