When moving to another server, please do the following:
Copy the serial.no file content as you will need them for the new server.
Run the command:
This command will talk to the Litespeed license server and unlock your serial number, it will generate a 3-day temp license so you don't get any downtime.
Then paste in the content from the old one. Save it.
Run the Installer:
If you wish to copy your old installation directory over to the new hardware, then you just need to activate your license.
To retrieve a new license key, run: