How to change hostname on Ubuntu 20.04? This question often arises for new Linux users. We can change the Hostname in 2 ways, here are the ways:
1. Change Hostname on Ubuntu 20.04 Permanently
In this first method, we need to edit 2 files namely the file /etc/hosts and /etc/hostname. The steps are as follows:
- To check the current hostname, you can run the command hostname or hostnamectl
Hostname Command
- Edit /etc/hosts file, then replace the old Hostname with the new Hostname you want
Change Hosts File
- Edit /etc/hostname file, then replace the old Hostname with the new Hostname you want
Change Hostname File
- If you have edited the two files, reboot
Reboot Your Ubuntu
- After rebooting, your Ubuntu Hostname will change, please check with the command hostname or hostnamectl
Change Hostname Success
- The hostname was successfully changed, the Hostname change process did not take long, here’s the GIF I made in the Hostname change process
Change Hostname Ubuntu Permanent
2. Change Hostname on Ubuntu 20.04 without Restart/Reboot
If you want to change Hostname without rebooting your Ubuntu. You can use hostnamectl command to change the Hostname. here are the steps:
- To check the current hostname, as in the first method, you can use the command hostname or hostnamectl
- Next, you can directly change the hostname with the command
hostnamectl set-hostname newHostname
Change Hostnamectl
- Here you don’t need to restart/reboot your Ubuntu and the Hostname has been successfully changed. The hostname change process doesn’t take long, here’s a GIF I made in the process of changing Hostname without restarting/rebooting
Change Hostname Ubutnu without Reboot
Hostname change has been successful!
Alright, that’s my short information about how to change hostname on Ubuntu 20.04. Hopefully this information can be useful. Thanks for reading 😀
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