How to Change Hostname on Ubuntu 20.04

The procedure to change the computer name on Ubuntu 20.04 LTS:

1. Type the hostnamectl command : sudo hostnamectl set-hostname newNameHere. Delete the old name and setup new name.
2. Next Edit the /etc/hosts file: sudo nano /etc/hosts. ...
3. Reboot the system to changes take effect: sudo reboot.

1. How do I change my hostname?
2. How do I change the hostname in Ubuntu 18.04 GUI?
3. How do I change my Ubuntu server name?
4. How do I create a hostname in Ubuntu?
5. How do I change my Ubuntu hostname permanently?
6. How can I change my hostname without rebooting?

How do I change my hostname?

Change a server's hostname

1. Using a text editor, open the server's /etc/sysconfig/network file. ...
2. Modify the HOSTNAME= value to match your FQDN hostname, as shown in the following example: HOSTNAME=myserver.domain.com.
3. Open the file at /etc/hosts. ...
4. Run the hostname command.

How do I change the hostname in Ubuntu 18.04 GUI?

Change hostname in Ubuntu Using GUI

To change the hostname in Ubuntu 18.04 or any other Linux distribution using GNOME desktop, just go to the System Settings and click on Details. In here, you'll see the 'Device name' field that is editable. This 'Device name' is your system's hostname. Change it to whatever you want.

How do I change my Ubuntu server name?

To put it all together:

1. At the start screen press Ctrl + Alt + F1 .
2. Log in using your username and password.
3. Set a password for the "root" account. ...
4. Log out. ...
5. Log in using the "root" account and the password you have previously set.
6. Change the username and the home folder to the new name that you want.

How do I create a hostname in Ubuntu?

Change the Hostname

1. Change the hostname using hostnamectl . # In Ubuntu 18.04 we can change the system hostname and related settings using the command hostnamectl . ...
2. Edit the /etc/hosts file. # Open the /etc/hosts file and change the old hostname to the new one. ...
3. Edit the cloud. cfg file. #

How do I change my Ubuntu hostname permanently?

Ubuntu 18.04 LTS change hostname permanently

1. Type the hostnamectl command : sudo hostnamectl set-hostname newNameHere. Delete the old name and setup new name.
2. Next Edit the /etc/hosts file: sudo nano /etc/hosts. Replace any occurrence of the existing computer name with your new one.
3. Reboot the system to changes take effect: sudo reboot.

How can I change my hostname without rebooting?

To do this issue the command sudo hostnamectl set-hostname NAME (where NAME is the name of the hostname to be used). Now, if you log out and log back in, you'll see the hostname has changed. That's it--you've changed the hostname without having to reboot the server.