In order to migrate Projetex 3D database to a cloud server, you would need to do the following:

1. Install Projetex 3D Server Administrator application onto your server with the demo database and register it with your license code.
2. Back up your Projetex database on your current server and copy the backup to your new cloud server.
3. Restore the database on your new Projetex 3D cloud server.

4. In order to connect to your server, you would need to ensure the TCP ports 212 and 47111 are open on your server and your server is accessible from public networks (or your internal VPN network).

5. Refer to these Knowledge base articles for further instructions:
https://aithelp.com/Knowledgebase/Article/View/593/0/how-can-i-connect-to-projetex-from-another-pc
https://aithelp.com/Knowledgebase/Article/View/730/0/what-port-does-the-projetex-3d-server-use