No external acces with a reverse proxy (synology) but ok in internal (closed)

Configuration
#1

Hello,

I have a problem and despite reading the forums, I can’t find a solution.

I have Home Assistant (HA) running on a Raspberry Pi (IP 192.168.1.76).
I have a Synology NAS with IP 192.168.1.20.
My router is at 192.168.1.1.
I have a domain provided by Synology: truc.synology.me.
I have forwarded external ports 443, 80, and 5001 to my Synology.

I can access my Synology without any issues by typing its address from my mobile device (outside the Wi-Fi network). The routing is functionnal.

I have set up the reverse proxy on Synology with an SSL certificate, and it works fine locally.

However, it doesn’t work when I try accessing it from the outside.

Does anyone have any ideas?

Here is my configuration.yaml

Please help !

"Sorry for putting everything in a single image. As a new user, I can only post one image at a time.

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image730×3160 320 KB

Edit : Yes, in network of HA parameters/system the “external access” is notified “active”

#2

Images of text are a horrible thing, which is why the pinned post asks you not to do that.

Did you check HA’s log file? Did you check the proxies log file?

#3

> Images of text are a horrible thing, which is why the pinned post asks you not to do that.

No problem! I’m not familiar with the customs of forums. I’m not a geek, just a knowledgeable user

> Did you check HA’s log file? Did you check the proxies log file?

In the log of HA i found nothing (i checked Home Assistant Core, Supervisor, Host and DNS).
It record no information when i try to log from external.

And in the synology, i absolute don’t know where to found it. I checked on the logs, but no information from proxy. I checked i SSH but no files, exept if i install a ProxyServer package that i don’t need at all…

#4

So, are you using a proxy or not?

#5

So, are you using a proxy or not?

I’m am. The DSM reverse proxy, internal to synolgy. Not the Proxy Server package.

#6

I FOUNDED !

It’s my router !
It does not accept request from port 443 … i don’t know why !!
I switched of the firewall, for testing. Nothing.

So the routing way : 443 → 443 NAS is not functionnal
I made a new rule : 943 → 443 NAS (943 or what we want)

And http://ha.truc.synology.me:943 is working both local or external …

Subject to close.
Good luck for thoose who have the same problem…

Thanks for your help Tinkerer.