Port for update sensors from HAss App and update from external?

Installation
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1

Hello,

Is all communication to Home Assistant including sensor update from HAss App going via the same port 8123? Or can be sensor update from HAss App be do in a different way?

Currently I am running HAss in my LAN with no access from outside. I have an own domain, running a proxy server for other applications and I am running a VPN. I can reach HAss from HAss App on the phone when I enable VPN. That is fine for my use case. Technically I am also able to set-up the reverse proxy or port forwarding to permanently get access from outside. This I have not done so far due to security concerns.

My issue is that I would like to open the connection for the HAss App to update the position data without exposeing my full HAss to the outside world. Any possibilities?

The only options I see so far:

  • permanently enable VPN on the mobile
  • expose full HAss to outside by port forwarding in the firewall
  • expose full HAss to outside by reverse proxy
2

Interesting. Is my question so unclear or is my use case so unique?

If I want to get position data from HAss App to my HAss I either have to expose the full server to outside by port forwarding or proxy. This is my current level of information. No other option for sensor update.