How to Change Your Computer Name in Ubuntu

Method 1 of 7:

Open the Run dialog And Gnome Text Editor

Open the Run dialog by pressing on Alt+F2 buttons on your keyboard.
When Run dialog is opened, you need to type following command or to use copy/paste method: gksu gedit /etc/hostname

Method 2 of 7:

Enter Password

After you hit Enter or click on the 'Run' button, you'll be asked for a password, so type password and hit Enter.

Method 3 of 7:

Use Gnome Text Editor

A new window will open, which is Gedit. In some cases it will say 'PC', but in your case, you may see some different name, so in that window replace the text with your desired name.
Don't forget to save your file before closing the file. You can do that if you click on 'Save' icon or just hit Ctr+S buttons. After that, close Gedit.

Method 4 of 7:

Open the Run dialog

Open the Run dialog again by pressing on Alt+F2 buttons on your keyboard.
When Run dialog is opened, type in the following command or to use copy/paste method: gksu gedit /etc/hosts

Method 5 of 7:

Enter Password

After you hit Enter or click on 'Run' button, it will ask you for the password. Type password and hit Enter.

Method 6 of 7:

Use Gnome Text Editor

Now for the second time, Gedit is opened. In may say 'PC' again (last line of the first block), so in that window, replace the text with the same desired name that you choose last time.
Don't forget to save your file before closing it. You can do that if you click on 'Save' icon, or just hit Ctr+S buttons. After that, close Gedit.

Method 7 of 7:

Use Terminal

The last step is to restart your system. When you're back on desktop again, open a Terminal (To open Terminal, press Ctrl+Alt+T on your keyboard or go to Applications > Accessories > Terminal, which is located in main menu ) window and you should see that your computer name has changed.

Isabella Humphrey

Update 04 March 2020

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