replied on August 4, 2022
Install your Public license on the external server, then while logged into either server go to Access Rights and an option to make the form public will be shown. So you can continue to maintain your processes from the internal server, but the public processes will only work on the external server.
If you are allowing users to login to the external server to perform tasks, there may not be any advantage to having an internal server any longer and you might want to consolidate.
Usually an internal / external server setup requires a VPN for user tasks and the external server only acccepts public submissions.