this post was submitted on 01 Apr 2026
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Are you singling out Jellyfin for a particular reason? Or are also going to advise just never opening ports in general?
jellyfin people just always spout this advice as some sort of copium and i dont even know why. ALL software will have security issues at some point or another. just update and move on with your life.
Definitely.
But I think more than copium it's them understanding their users. It's advice for people that will figure out how to run Jellyfin but won't stay on top of updates, setup a waf, use a firewall/reverseproxy to limit access, etc. There are surely a lot of those that just one clicked an installer etc and for them it's good advice.
that's fair, does it not have any kind of encryption by default?
Standard TLS, I think, but what else would you need?
None really, just wondering what the issue with opening it up is if it has TLS? In 10+ years I've never had my Plex server compromised and it just uses TLS. I do change the default port but that's it.
Plex logins go through their login server so you'll also have login throttling and probably other bot protections.
They also do some SSL shenanigans to get every user a unique, valid public certificate created during setup. https://words.filippo.io/how-plex-is-doing-https-for-all-its-users/