Nextcloud getting 127.0.0.1 instead of real IP from NPM

[Terrorbyte]

• Nextcloud Server version (e.g., 29.x.x):
  • 30.0.6
• Operating system and version (e.g., Ubuntu 24.04):
  • Truenas Scale ElectricEel-24.10.2
• Web server and version (e.g, Apache 2.4.25):
  • replace me
• Reverse proxy and version _(e.g. nginx 1.27.2)
  • NPM 2.12.3
• PHP version (e.g, 8.3):
  • 8.3.17
• Is this the first time you’ve seen this error? (Yes / No):
  • Yes
• When did this problem seem to first start?
  • 3 weeks ago
• Installation method (e.g. AlO, NCP, Bare Metal/Archive, etc.)
  • AlO
• Are you using CloudfIare, mod_security, or similar? (Yes / No)
  • No

Summary of the issue you are facing:

I have Pihole and NPM installed on another server, i configured nextcloud and pihole to use IPv6 if this is relevant
the Main problem is that I am facing in issue where the logged IP i am getting in Nextcloud is 127.0.0.1 instead of their real IP

Steps to replicate it (hint: details matter!):

1. Install nextcloud AIO
2. Put 1962.168.8.5 (IP address of pihole and NPM) in trusted Proxy
3. Point drive.xxx.com to 192.168.8.4:11000 in NPM

Log entries

https://pastebin.com/MYu8t2aC

Web server / Reverse Proxy

(https://pastebin.com/2qxtRrEA)

Configuration

https://pastebin.com/xENfQEk8

Apps

https://pastebin.com/9ECdnC20

[Terrorbyte]

I am not sure but I attempted to restart both servers and now its working

[DrJambus]

For a container behind an reverse Proxy the http request contains a header that tells the client actual ip. I think its called x-forward something. Nginx should set this header normally. Maybe that change was made after restart.