this post was submitted on 25 Oct 2023
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A few Questions about reverse proxies and running your own Jellyfin server (self.selfhosted)
submitted 1 year ago by KpntAutismus to c/selfhosted
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First things first, the setup is currently up and running. but i would like to modify it to use a reverse proxy through my personal domain.

Currently, i'm using an old pc with Truenas and a jail with jellyfin in it. i'm connecting to it with the free Fritz!Box VPN service.

but that's stupid and slow. so i've bought a domain at godaddy.com. but i don't understand the principle of whatever is managing the domain knowing the public IP-adress of my server. i've heard of Caddy, but it's also running locally, so i don't understand how i connect the pc to the domain.

if anyone could simplify this down for me, it'd be very helpful.

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[–] [email protected] 3 points 1 year ago

There's a nice explanation of how caddy reverse proxies work here. https://caddy.community/t/using-caddy-as-a-reverse-proxy-in-a-home-network/9427

Essentially you setup your router to port forward any new incoming connections to Caddy, which then decides what to do with them according to the configuration (Caddyfile).

Even simpler: Your local network is like a castle, inside is a safe and secure place where your devices communicate freely. Your router is a firewall around the castle, by default it blocks incoming connections. This is good because the internet is scary. By port forwarding you allow a door in the firewall which leads to Caddy, which is like a guard. Caddy asks them what they want, and if they say e.g. jellyfin.example.com, then it sets up an encrypted connection with https to your local jellyfin server. If they want anything else they aren't allowed in.