DuckDNS/SSL not working



I’m new to HA and trying to set up DuckDNS/SSL. I used this guide from 2017:

I got through all of the steps just fine but when I navigated to it didn’t work:

This site can’t be reached. refused to connect.

I then redid it by removing the dehydrated folder and using the script:

sudo hassbian-config install duckdns to redo it.

Same problem.

I have no errors in the home-assistant.log, and I can access it through https://hassbian.local:8123 but not through duckdns.

I verified that I have a port forward in my router forwarding 8123 to my local ip’s 8123.

Is there any way I can figure out what’s going on?


In my config.yaml I didn’t know what “api_password” is so I just left it out. Otherwise i copied it exactly:

ssl_certificate: /home/homeassistant/dehydrated/certs/
ssl_key: /home/homeassistant/dehydrated/certs/


I am an idiot. My ISP’s modem was blocking traffic. Worked after I fixed that.