Can't get hassio http to respond on port 443

Configuration
1

I have hass.io 82.0 and am trying to get the http service to respond on port 443 instead of port 8123.

I made the following changes to the http: section but it is still not switching over to port 443. Any advice would be appreciated. I’ve cleared browser caches, restarted the pi sever times including hard resets and there are NO errors in the log file - at all.

 http:
  base_url: notmyaddress.duckdns.org
  server_port: 443
  ssl_certificate: /ssl/fullchain.pem
  ssl_key: /ssl/privkey.pem
2

Why not keep the port 8123 and use your router to forward 443 to 8123 on that ip?

3

Primarily because I want to configure dns inside my network to never let 443 traffic to the duckdns.org address out of the network. I want devices inside the network to stay there but also work from outside the network.