SOLVED: Cannot get caddy working at all, no conections go through

[TheDreadPirate]

I cannot unmark your post as a solution. I've accidentally done this myself and can't undo it. :-(

Just to verify, your caddy files is located in /etc/caddy/Caddyfile, correct?

Try deleting the certificates in /var/lib/caddy. I don't use caddy, so I can't get more specific than that. Stop caddy, delete whatever cert it has requested, and restart caddy.

FYI, your caddy file should be your subdomain.domain.tld and not just domain.tld. Otherwise the certificate will be invalid when accessing Jellyfin since the cert only has domain.tld. Your other option is to use a wildcard cert if you plan to have other services running and only want to manage one cert.

https://caddyserver.com/docs/automatic-h...rtificates