Sample NGINX site config for reverse proxy w/ forced TLS using Let's Encrypt certs

nginx_site_config

server {
    # Port 80 is the default port for accepting HTTP connections
    listen 80;

    # These are the domain names (including subdomains) which this configuration will accept connections for
    server_name mydomain.com;

    # This line is for permanently redirecting to SSL/TLS
    return 301 https://mydomain.com$request_uri;
}

server {
    # Port 443 is the default port for accepting HTTPS connections
    listen 443 ssl;

    # These are the domain names (including subdomains) which this configuration will accept connections for
    server_name mydomain.com;

    # SSL/TLS Configuration
    add_header Strict-Transport-Security max-age=31536000;
    ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
    ssl_ciphers 'ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:CAMELLIA:DES-CBC3-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!aECDH:!EDH-DSS-DES-CBC3-SHA:!EDH-RSA-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA';
    ssl_prefer_server_ciphers on;
    ssl_session_cache shared:SSL:30m;
    ssl_session_timeout 30m;
    ssl_stapling on;
    ssl_stapling_verify on;
    ssl_dhparam /etc/nginx/ssl/dhparams.pem;

    ssl_certificate /etc/letsencrypt/live/mydomain.com/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/mydomain.com/privkey.pem;

    location / {
        proxy_set_header X-Forwarded-For $remote_addr;
        proxy_pass http://127.0.0.1:3300;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_cache_bypass $http_upgrade;
    }
}