Command-line way of changing Computer Name in Ubuntu

Know Command-line and GUI way of changing Computer Name

In this session of Terminal Tuts, we will learn how to change your Ubuntu computer name and your server host name via Terminal. Command-line method is more useful for system administrators as usually they do it remotely. To edit the computer name, one has to edit “/etc/hostname” and “/etc/hosts” system files. In this article, we will see how to do edit them.

Rename Host Name in Ubuntu 17.10

METHOD 1: Command-line way useful for Remote login

STEP 1: Launch Terminal and enter the following command to install vim.

sudo apt-get install vim
Change Host name in Ubuntu
Change Host name in Ubuntu

STEP 2: Enter the following command to open the hosts file.

sudo vim /etc/hostname

STEP 3: You will see text editor within the Terminal. Press ‘Esc’ key and then ‘i’ to enter into INSERT mode where you can edit the file.

Change Host Name
Change Host Name

STEP 4: Go ahead and rename the computer by editing the first line which has the current computer name. For example I have renamed my PC name from fosslinux to fosslinuxtest.

Host Name Changed
Host Name Changed

STEP 5: After editing is complete you have save the file and exit out of it. To do press esc key to get to last line. Then type :wq and press enter. vim will save the sh file and exit out to terminal.

Save and Exit Command in vim
Save and Exit Command in vim

STEP 6: Type reboot in the terminal to restart the computer.

That’s it. Your computer name should be changed!

PC Name Changed!
PC Name Changed!

METHOD 2: GUI Way useful for a desktop computer

STEP 1: Type ‘Settings’ in the applications search box and click ‘Settings’.

Launch Settings
Launch Settings

STEP 2: In the ‘Settings’ app, click ‘Details’ located at the bottom left corner.

Click'Details'
Click ‘Details’

STEP 3:  Rename the PC and simply close the app.

Rename the PC
Rename the PC

STEP 4: Reboot the PC to see the new name in effect.

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