How To Change The Hostname Of A Linux System

Submitted by Micky on Sat, 04/28/2007 - 00:15
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Change the hostname on a running system

On any Linux system you can change its hostname with the command ‘hostname‘ (surprised?)… Here are some quick usages of the command line hostname:

hostname

Without any parameter it will output the current hostname of the system.

hostname --fqd

It will output the fully qualified domain name (or FQDN) of the system.

hostname NEW_NAME

Will set the hostname of the system to NEW_NAME. This is active right away and will remain like that until the system will be rebooted (because at system boot it will set this from some particular file configurations - see bellow how to set this permanently). You will most probably need to exit the current shell in order to see the change in your shell prompt.

‹ Permanent Redirect Use 'sysctl' To Change The Hostname ›