There are times you may come up with a need for change in your computer’s identity over network. This is when you will have to change the Hostname of your computer. The hostname is pretty much like a label to your computer or the device for identification over the network. The hostname can be just a simple name, an IP Address or even a domain name.
To change the hostname in Ubuntu, follow these simple steps:
1. Find out your existing hostname by entering this command in terminal:
So on my computer, the hostname is “santhosh-desktop”
2. Change the hostname by editing:
sudo nano /etc/hostname
You will see the existing hostname. Change it to whatever new hostname you want and save it by hitting Ctrl + O
In this tutorial, I change it to
3. Now edit the hosts:
sudo nano /etc/hosts
Here change the ::1 and 127.0.1.1 to the new hostname you chose.
::1 gigacore-desktop localhost6.localdomain6 localhost6
3. Restart the hostname service.
sudo /etc/init.d/hostname restart
Now check the hostname by following the step 1 and you should see the new hostname.