this post was submitted on 23 May 2026
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Assuming the user will not be connecting over vpn, but is both remote and non-technical, how would you expose Jellyfin to them securely?

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[–] nibbler@discuss.tchncs.de 3 points 1 month ago* (last edited 1 month ago) (2 children)

If client certificates and basic auth is not supported by jellyfin:

  • reverse proxy
  • strong random subdomain
  • wildcard certificate
  • tls1.3 only
  • doh/dot only

1-3 make random scanners unable to find your service, 4&5 even hide it from your ISP. Dot/doh service will still know your subdomain, so be your own dot/doh ! :D

[–] Jason2357@lemmy.ca 2 points 1 month ago (2 children)

I'm no expert, but an unguessible URL path is similar but not visible to DNS. Could do both.

[–] nibbler@discuss.tchncs.de 2 points 1 month ago

Just stumbled upon this: https://jellyfin.org/docs/general/post-install/networking/

Base URL

Running Jellyfin with a path (e.g. https://example.com/jellyfin) is supported.

caution Base URL is known to break HDHomeRun, the DLNA plugin, Sonarr, Radarr, and MrMC.

so: yes, it works. but most likely: no you don't want this.

[–] nibbler@discuss.tchncs.de 1 points 1 month ago

If jellyfin Clients can do URLs, sure

[–] Dultas@lemmy.world 1 points 1 month ago (1 children)

Throw in port knocking for good measure.

[–] nibbler@discuss.tchncs.de 1 points 1 month ago (1 children)

You telling me jellyfin Clients can't handle client certs but can port knock?

My proposal is for maxing ux on the client side while being properly hidden.

[–] Dultas@lemmy.world 1 points 1 month ago (1 children)

No you port knock first to open the ports. Then connect the client.

[–] nibbler@discuss.tchncs.de 1 points 1 month ago (1 children)

usually port knocking opens the relevant port to the client IP that is knocking. So it makes a lot of sense to have the knocking done by the requesting client. In many situations knocking from your mobile while behind the same NAT as your jellyfin client will do the trick, but if you have different IPv6 on those devices etc, it won't.

Also: if you assume your DNS lookups are sniffed - so are your port knocks. If you don't, spare the extra work. But then, if you like port knocking - keep knocking, nothing wrong about it :D

[–] Dultas@lemmy.world 1 points 1 month ago

Could always get super complicated and rotate your port knocking so no replay attacks. But now we're just getting silly :)