Changing the default hostname on an instance modifies the default server configuration and reinstalls the operating system.
Follow this guide to change the hostname on a Vultr Bare Metal instance using the Vultr Customer Portal.
Navigate to Products and click Compute.
Click your target Bare Metal instance name to open its management page.
Navigate to the Settings tab.
Click Change Hostname on the left navigation menu.
Replace the existing value with your new hostname.
Check the confirmation prompt and click Change Hostname to apply your new hostname changes.