Update hostname¶

Update hostname

sudo hostnamectl set-hostname <HOSTNAME>

Edit the /etc/cloud/cloud.cfg file

sudo vim /etc/cloud/cloud.cfg

Search for preserve_hostname and change the value from false to true:

# This will cause the set+update hostname module to not operate (if true)
preserve_hostname: true

To verify that the hostname was successfully changed, once again use the hostnamectl command:

hostnamectl

Then reboot