Warnings "Unknown proxy"

[maloutx]

Hi all, 
I have Jellyfin 10.11.110.11.2 (deb packages) installed on a minipc, connected to a NAS which serves as a reverse proxy as well as a file server for Jellyfin.
Everything works fine, but I noticed in my jellyfin logs hundreds of lines such as the following ones :

Code:

[2025-11-14 08:58:59.443 +01:00] [WRN] Unknown proxy: "192.168.1.78:40876"
[2025-11-14 08:58:59.607 +01:00] [WRN] Unknown proxy: "192.168.1.78:40876"
[2025-11-14 08:58:59.835 +01:00] [WRN] Unknown proxy: "192.168.1.78:40874"
[2025-11-14 08:59:00.144 +01:00] [WRN] Unknown proxy: "192.168.1.78:40874"
[2025-11-14 08:59:00.321 +01:00] [WRN] Unknown proxy: "192.168.1.78:39828"
[2025-11-14 08:59:10.319 +01:00] [WRN] Unknown proxy: "192.168.1.78:39828"
[2025-11-14 08:59:20.352 +01:00] [WRN] Unknown proxy: "192.168.1.78:39828"
[2025-11-14 08:59:30.331 +01:00] [WRN] Unknown proxy: "192.168.1.78:39828"
[2025-11-14 08:59:40.320 +01:00] [WRN] Unknown proxy: "192.168.1.78:39828"

The IP address ending with 78 is the one of my NAS. 

I'm not sure I fully understand what's going on. Should I be worried ? It looks like someone is probing a bunch of ports to access Jellyfin, am I right ? How do I know if these attempts are successful or are an issue ? And if need be, how do I prevent them ?

I get that this is probably not strctly a jellyfin issue, but any help or pointers wouldl be appreciated.
Thanks in advance

[pxr5]

Have you done this: "Therefore, the IP address(es) of your reverse proxy must be configured under “Known Proxies” in Jellyfin’s Network settings"?

https://jellyfin.org/docs/general/post-i...rse-proxy/

[maloutx]

Ha,thanks for your reply. I had not done that, indeed...
Just did, I'll let you know in a day or two if that took care of the issue.
Thanks again