Nginx

"Nginx (pronounced "engine X") is a web server which can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache. The software was created by Igor Sysoev and first publicly released in 2004.[9] A company of the same name was founded in 2011 to provide support and Nginx plus paid software." - Wikipedia

Nginx from a subdomain (jellyfin.example.org)

Create the file /etc/nginx/sites-available/jellyfin which will forward requests to Jellyfin. After you've finished, you will need to symlink this file to /etc/nginx/sites-enabled and then reload nginx. This example assumes you've already acquired certifications as documented in our Let's Encrypt guide.

Note that a server listening on http port 80 is required for the Certbot / Let's Encrypt certificate renewal process.

HTTPS config example

server {
    # Nginx versions prior to 1.25
    #listen 443 ssl http2;
    #listen [::]:443 ssl http2;

    # Nginx versions 1.25+
    listen 443 ssl;
    listen [::]:443 ssl;
    http2 on;

    server_name jellyfin.example.org;

    ## The default `client_max_body_size` is 1M, this might not be enough for some posters, etc.
    client_max_body_size 20M;

    # Comment next line to allow TLSv1.0 and TLSv1.1 if you have very old clients
    ssl_protocols TLSv1.3 TLSv1.2;

    ssl_certificate /etc/letsencrypt/live/example.org/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/example.org/privkey.pem;
    include /etc/letsencrypt/options-ssl-nginx.conf;
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem;
    ssl_trusted_certificate /etc/letsencrypt/live/example.org/chain.pem;

    # use a variable to store the upstream proxy
    set $jellyfin 127.0.0.1;

    # Security / XSS Mitigation Headers
    add_header X-Content-Type-Options "nosniff";

    # Permissions policy. May cause issues with some clients
    add_header Permissions-Policy "accelerometer=(), ambient-light-sensor=(), battery=(), bluetooth=(), camera=(), clipboard-read=(), display-capture=(), document-domain=(), encrypted-media=(), gamepad=(), geolocation=(), gyroscope=(), hid=(), idle-detection=(), interest-cohort=(), keyboard-map=(), local-fonts=(), magnetometer=(), microphone=(), payment=(), publickey-credentials-get=(), serial=(), sync-xhr=(), usb=(), xr-spatial-tracking=()" always;

    # Content Security Policy
    # See: https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP
    # Enforces https content and restricts JS/CSS to origin
    # External Javascript (such as cast_sender.js for Chromecast) must be whitelisted.
    add_header Content-Security-Policy "default-src https: data: blob: ; img-src 'self' https://* ; style-src 'self' 'unsafe-inline'; script-src 'self' 'unsafe-inline' https://www.gstatic.com https://www.youtube.com blob:; worker-src 'self' blob:; connect-src 'self'; object-src 'none'; font-src 'self'";

    location / {
        # Proxy main Jellyfin traffic
        proxy_pass http://$jellyfin:8096;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header X-Forwarded-Protocol $scheme;
        proxy_set_header X-Forwarded-Host $http_host;

        # Disable buffering when the nginx proxy gets very resource heavy upon streaming
        proxy_buffering off;
    }

    location /socket {
        # Proxy Jellyfin Websockets traffic
        proxy_pass http://$jellyfin:8096;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header X-Forwarded-Protocol $scheme;
        proxy_set_header X-Forwarded-Host $http_host;
    }
}

server {
    listen 80;
    listen [::]:80;
    server_name jellyfin.example.org;
    return 301 https://$host$request_uri;
}

Extra Nginx Configurations

Censor sensitive information in logs

This censors any 'api_key' URL parameter from the logfile.

#Must be in HTTP block
log_format stripsecrets '$remote_addr $host - $remote_user [$time_local] '
                    '"$secretfilter" $status $body_bytes_sent '
                    '$request_length $request_time $upstream_response_time '
                    '"$http_referer" "$http_user_agent"';

map $request $secretfilter {
    ~*^(?<prefix1>.*[\?&]api_key=)([^&]*)(?<suffix1>.*)$  "${prefix1}***$suffix1";
    default                                               $request;
}

#Must be inside server block
#Insert into all servers where you want filtering (e.g HTTP + HTTPS block)
access_log /var/log/nginx/access.log stripsecrets;