DuckDNS SSH - 400 bad request ERR_INVALID_REQ

zubredo · January 21, 2019, 9:01pm

Hi,

I am trying to get remote access to work. Followed the instruction on https://www.juanmtech.com/hassio-duckdns-add-on-set-up/.

The DuckDNS Plugin seems to work as well as the port forwarding of my router (forwarded extern port 443 to local port 8123). However, if I try to access my domain https://xxx.duckdns.org I got the follow error message showing up:

#400 Bad Request
ERR_INVALID_REQ
Webserver Mon, 21 Jan 2019 20:42:13 GMT`

Does anyone has an idea what is going wrong?

zubredo · January 21, 2019, 10:09pm

Hi solved the problem.

It was a problem with port forwarding of my fritzbox. After I changed port forwarting to “extern port 8123 to local port 8123”, I can now access Home Assistant by https://mydomain.duckdns.org:8123.

flow0103 · November 30, 2021, 11:08pm

Hi there, I feel like I am struggling with the exact same problem. How did you change the port from external to internal?

zubredo · December 2, 2021, 9:23pm

In my German interface under Internet → Freigaben you can edit the specific port forwardings („freigaben“). See the following screenshot: