this post was submitted on 13 Jun 2024
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Hello everyone,

I currently have Jellyfin running through Caddy and Cloudflare as reverse proxies.

I have tried everything and can't seem to get Jellyfin to report anything but the Cloudflare IP for clients.

Does anyone have a similar setup and could help me troubleshoot this? I can share whatever configs I am using as required.

Thanks!

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[–] [email protected] 23 points 1 month ago (2 children)

Be careful about using video over the cloudflare proxy, they will come after you if you are using a TON of bandwidth

[–] [email protected] 3 points 1 month ago (1 children)

Do you know of a way to have a global caddy setting to only allow Cloudflare IPs, but "exempt" Jellyfin?

(I posted my caddy cloudflare section down below which only works as a global setting)

[–] [email protected] 8 points 1 month ago* (last edited 1 month ago)

You would change it from orange cloud to gray cloud to disable the proxy in your domain DNS settings.

Specifically for the jellyfin subdomain.

That would be the correct solution IMO.

[–] [email protected] 1 points 1 month ago (1 children)

I thought that is was not against their TOS now.

[–] [email protected] 0 points 1 month ago* (last edited 1 month ago)

I haven't heard any such thing unless you are paying for their video CDN which isn't cheap

[–] [email protected] 6 points 1 month ago (1 children)
[–] [email protected] 3 points 1 month ago (2 children)

I have followed that guide which let me to a few GitHub issues.

Here is what I have put in my config:

servers {
        trusted_proxies cloudflare {
                        interval 12h
                        timeout 15s
                }
        trusted_proxies static private_ranges
        client_ip_headers Cf-Connecting-Ip X-Forwarded-For
        }
}

I have also added all Cloudflare IPs in Jellyfin's known proxies:

103.21.244.0/22, 103.22.200.0/22, 103.31.4.0/22, 104.16.0.0/13, 104.24.0.0/14, 108.162.192.0/18, 131.0.72.0/22, 141.101.64.0/18, 162.158.0.0/15, 172.64.0.0/13, 173.245.48.0/20, 188.114.96.0/20, 190.93.240.0/20, 197.234.240.0/22, 198.41.128.0/17

Yet, I'm still not seeing the real IPs.

[–] [email protected] 2 points 1 month ago

I have also added all Cloudflare IPs in Jellyfin's known proxies

You should only need to add the IP of the last proxy before reaching Jellyfin, which would be Caddy.

[–] [email protected] 1 points 1 month ago (1 children)

Using a whitelist in this manner with cloudflare may be challenging as this list can potentially change. They do have means to query it though. https://developers.cloudflare.com/api/operations/cloudflare-i-ps-cloudflare-ip-details Additionally, have you considered ipv6 support?

if you haven't solved the problem yet, I would consider switching to Apache for your reverse proxy and using mod_remoteip.

[–] [email protected] 2 points 1 month ago

I might have to switch, as much as I like the simplicity of Caddy, I keep running into issues like this unfortunately.

[–] [email protected] 3 points 1 month ago (1 children)

Authelia has a page on cloudflare, does this help at all? Note that I use traefik as my reverse proxy and am not using any of cloudflares advanced features.

https://www.authelia.com/integration/proxies/forwarded-headers/#cloudflare

[–] [email protected] 1 points 1 month ago

Thanks for the suggestion. I followed that and it didn't solve the problem sadly.

[–] [email protected] 1 points 1 month ago* (last edited 1 month ago)

Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I've seen in this thread:

Fewer Letters More Letters
CF CloudFlare
DNS Domain Name Service/System
IP Internet Protocol

3 acronyms in this thread; the most compressed thread commented on today has 6 acronyms.

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