There are three classes for hostname in Linux
Static – The static
host name is traditional host which can be chosen by the user and is stored in
/etc/hostname file.
Transient – The transient
host name is maintained by kernel and can be changed by DHCP and mDNS.
Pretty – It is a free
form UTF -8 host name for the presentation to the user.
How to check current hostname
Type in terminal like
below
|
[akila@localhost
~]# hostname
localhost.localdomain
|
Below is show how to set hostname using networkManagement Tool(nmtui)
Type nmtui in command prompt,
[akila@localhost ~]# nmtui
NetworkManager tool is
used to set the static host name in /etc/hostname file.
[akila@localhost ~]# nmtui –select set
hostname
You can change
hostname using tool. After changing the hostname restart hostnamed service as
below,
[akila@localhost ~]# systemctl restart system-hostnamed
Now check the hostname
again. You can see changed hostname,
[akila@localhost ~]# hostname
Using hostnamectl command,
To check the status of
hostname, type below command,
|
[akila@localhost
~]# hostnamectl status
|
Set the hostname using
below command,
|
[akila@localhost
~]# hostnamectl set-hostname newHostName
|
If you use this
command, you do not require to notify the change in host name. Close the
current session and re launch the terminal.
