Traffic is going through cloudflare when accessing services on the same network

[Hakisak]

Hello,

The Issue:
I have Nginx Proxy Manager installed on my home assistant machine and when I access my services, all the traffic will go through Cloudflare instead of my internal network. For example; FileBrowser app installed on my TrueNAS, when viewing a video, it will buffer a lot because the video bitrate is higher than my upload speed.

I have tried to fiddle with unbound overrides, but it always seems to do nothing or break everything, Unless I'm just doing it wrong?
I tried moving NPM to my TrueNAS machine, but the same problem still persists.

Some pointers or directions would be appreciated ❤️

Please see attached pictures of network map and network traffic when playing video on FileBrowser (my upload speed is max 50/Mbps), The public IP's listed seem to be cloudflare servers:






Here are some pictures of my OPNsense configuration:





And Nginx Proxy Manager

[bartjsmit]

You need split DNS. Internal clients go direct, bypassing NPM because they have the internal IP of your host(s).

If you don't want to build a second DNS server, add hosts entries on your clients. For Windows this is in system32\drivers\etc

[Hakisak]

You need split DNS. Internal clients go direct, bypassing NPM because they have the internal IP of your host(s).

If you don't want to build a second DNS server, add hosts entries on your clients. For Windows this is in system32\drivers\etc

Is split DNS different from unbound overrides? I thought unbound would be able to do it, but I think it was causing the client to detect my opnsense router wasn't authorised to use that domain name (but again, maybe I was just doing it wrong).

by second DNS server are you saying I should just run ad-guard on my opnsense? or pi-hole on my homeassistant?

edit: also windows host file can only do IP, not IP:port, but I would prefer not to alter host files.