Change Linux hostname [Ubuntu]

I think everyone has already installed a virtual machine or hired a Cloud and come across the default name in the machine’s Hostname, generally it is the OS used. Or you entered a name and want to change it, but forgot how. In this post we will show TWO WAYS you can change your hostname easily.

Method number 1

1 - Place the desired name in the hosts file

vim /etc/hosts

2 - Place the desired name in the hostname file

vim /etc/hostname

3 - Place the new name directly into memory

echo "NAME_YOU_DESIDRE" > /proc/sys/kernel/hostname

4 - Log off and log back on or run “bash

Look our new hostname:

Method number 2

1 - Check if you have hostnamectl in your distribution

hostnamectl status

2 - Enter the name you want, in my example I used “tutorial”

hostnamectl set-hostname tutorial

3 - Log off and log back on or run “bash”

Let’s see the hostname:

That’s it! From this tutorial we learned two really cool ways to change your machine’s hostname. The tutorial was made in Ubuntu, but it should work in your distribution.

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