Hi, I have a clean instance of HASS which I want to make available through the internet and an already running instance of NGINX with configured SSL via Let’s Encrypt. When I try to access it via the subdomain, I am getting 400 Bad Request and the logs from the HASS Docker container prints: 2021…

OK to help with the changing addresses try 172.16.0.0/16 as the proxy. That should include that whole subnet.

Did you try searching the forum? you may find the solution in this thread. you probably need to list the actual ip address of your reverse proxy in the config. [image] A request from a reverse proxy was received from 172.30.33.4, but your HTTP integration is not set-up for reverse …

Hi, thanks for you answer. I tried multiple things from the forum, including adding 127.0.0.1 (which is suggested in your link). I also came across the 0.0.0.0/0 setting which - if I got this right - would be basically “allow any proxy”, which I tried but didn’t work for me too. I actually tried s…

[image] panic158: 127.0.0.1 The HA error says the reverse proxy ip address is 172.19.0.3 Docker containers many times set up their own network for local communication.

Yes I’m aware of that. When I enter docker network inspect <NETWORK_NAME>, I also get the IP address from my NGINX instance (which was 172.19.0.3 in my inital post). Even if I add exactly this IP address to my configuration.yaml, I still receive the same error. http: trusted_proxies: - 172.1…

Did you restart HA after making that change? You might want to try adding a subnet mask like this 172.19.0.3/32 That specifies that particular address.

Yes I restarted via HASS panel and since that didn’t work also tried to restart the container. Same behavior when using 172.19.0.3/32. Can I somehow verify that this configuration.yaml file is even used? All I know is that when a syntax error exists in the file HASS doesn’t boot up. Is that enough …

[image] panic158: Can I somehow verify that this configuration.yaml file is even used? Home Assistant does some configuration checks if you ask That option os on the Server Controls configuration page. I am using 2021.11.5 so the menu path may have changed in 2021.12.x. [image]

Okay config file seems to be fine. [Screenshot_20211231-163952_Brave]

Anything different show up in the HA logs or just the same error?

[Screenshot_20211231-164458_Brave] I see a second error now, but it seems to happen much later. But nothing else. (IP changed since I recreated the containers)

Getting 400 when accessing Home Assistant through a reverse proxy (dockerized nginx)

Configuration

Prodigyplace December 31, 2021, 2:54pm 2

Did you try searching the forum? you may find the solution in this thread. you probably need to list the actual ip address of your reverse proxy in the config.