Why do you think it is opened to the Internet? May be just a box behind a NAT calling home and/or be part of closed VPN swarm.
I would love to hear how the management part got implemented.
I would love to hear how the management part got implemented.
Every open3ABox has an open websocket connection to my server. I do the monitoring over this connection and for updates and support I tell the box over the websocket connection to forward a port via ssh to my server. The port will be automatically closed by the open3ABox after three hours.
This means no constantly open port and an encrypted connection where only my server is allowed to do a remote function execution (get monitoring values, open port, etc.) on the box.
Reverse ssh tunnels are a really good way to manage stuff like that.
Thank you for the explanation!