Jellyfin, Caddy, and Cloudflare Real IP

submitted by notdeadyet

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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12 Comments

Scott

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

notdeadyet [OP]

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)

Scott , edited

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.

Auli

I thought that is was not against their TOS now.

Scott , edited

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

Toes♀

Track the CF-Connecting-IP field instead of the IP address to get the client.

https://developers.cloudflare.com/support/troubleshooting/restoring-visitor-ips/restoring-original-visitor-ips/

notdeadyet [OP]

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.

SteveTech

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.

Toes♀

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.

notdeadyet [OP]

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

DarkSirrush

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

notdeadyet [OP]

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

Decronym , edited

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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