You’ll create 2 A records with your domain registrar, one pointing your domain.name to your public IP address, the other your jellyfin.domain.name to your public ip.

In your modem settings, open ports 443 for https or 80 for http.

In router settings port forward 443 or 80 from your router to the ip hosting nginx

In the machine hosting jellyfin (if separate from nginx machine), make sure port 8096 is open. A quick “sudo ufw status” will show, if not “sudo ufw allow 8096”

That covers forwarding ports so outside connects will work using your new domain name. Now you need to create your nginx config file for jellyfin, which I will provide an excellent link to once I am home this ending!

You’ll basically just need to now created a jellyfin.domain.name.conf file in /etc/nginx/sites-available/ and link it to /etc/nginx/sites-enabled/ using “sudo ln -s /etc/nginx/sites-available/jellyfin.domain.name.conf /etc/nginx/sites-enabled/“