JetBackup will register your license once you activate it. The license will register your server's Public IP. If you migrate/replace the server, you will need to reissue the license through our client area.
Login to your client area, from the top menu navigate to "Services" > "My Services", and choose JetBackup (click the "View Details" button).
Under "Management Actions", click on "Reissue License".
Now all you need to do is to access the JetBackup through the GUI, and the license will be reissued using the new server details.
To force JetBackup to validate your license against our licensing servers please execute the
following command from your server's CLI as root user -
jetcli backup --license