An on-premise install also has the similar prereqs as the server.
First you need to have a server.
- It can be also installed on a Windows server and even with MS SQL.
- If it is needed we use only 8080 and 8181 ports for the communication, WebSockets.
- The server has to be able to reach the devices.
See more about: Server prerequisites.
If the server can not reach out to the internet, you can only have Lifetime devices.