Hi, sorry to bother people about this, I feel it is a dumb question.
I set up my Home Assistant many years ago and recently pulled the hood back to update everything and improve it. I found that my duckdns wouldn’t connect and realise I’d replaced my router and had to re-forward ports because I was getting the above error. Whilst I was at it I installed the NGINX Home Assistant SSL proxy Add-on so that I could have https on remote access whithout having to use in on my local network. Up until now I was simply accessing ot on https locally and getting a ‘not secure’ error.
All go so far and everything seems to be working. However, I used to access my assistant at xxx.duckdns.org:8123
. Now that does not work but I can access it without the port number.
Settings wise, I forwarded 443 and 8123 to my Pi’s 443 and 8123.
If I enter http://xxx.duckdns.org
I get redirected to https://xxx.duckdns.org
and the browser says it is secure. If I try to access the URL with :8123 I get the “ERR_SSL_PROTOCOL_ERROR” error. Sounds good, I think.
My question is, with those ports forwarded (and no others) and how I now have to access the URL (without the 8123 port), am I missing something that may be a vulnerability or does it sounds like I stumbled my way to success???
Thanks.