Hass.io using external https via duckdns and using internal IP address as well

Installation
1

Hi

I’m using hassio 0.62 on a raspberry pi 3b and my router is a fritzbox. I can correctly access my hassio using https://something.duckdns.org:8123. Last week my external internet connection went down and I couldn’t access my hassio configuration using the above address (as expected). However, I was also unable to access hassio using my local address https://192.168.178.79:8123 Error “Your connection is not private”.

What is the format for adding my local 192.168.178.79 IP address to my configuration/certificate? I am also running the inbuilt mqtt broker, but I haven’t setup mqtt yet.

Currently my configuration is as follows…

DuckDNS Options:

{
  "lets_encrypt": {
    "accept_terms": false,
    "certfile": "fullchain.pem",
    "keyfile": "privkey.pem"
  },
  "token": "e558a538-6fd5-4cc0-b353-922a65ffb940",
  "domains": [
    "something.duckdns.org"
  ],
  "seconds": 300
}

Lets Encrypt Options:

{
  "email": "[email protected]",
  "domains": [
    "something.duckdns.org"
  ],
  "certfile": "fullchain.pem",
  "keyfile": "privkey.pem"
}

Configuration.yaml:

http:
  base_url: something.duckdns.org:8123
  ssl_certificate: /ssl/fullchain.pem
  ssl_key: /ssl/privkey.pem
  # Secrets are defined in the file secrets.yaml
  api_password: mypassword

Many thanks
Kiwi

2

base_url (Optional): The URL that Home Assistant is available on the internet. For example: hass-example.duckdns.org:8123. Defaults to the local IP address. The iOS app finds local installations, if you have an outside URL use this so that you can auto-fill when discovered in the app.