server {

    listen 8448 ssl;

    server_name YOURDOMAIN.COM;

    ssl_certificate /etc/letsencrypt/live/YOURDOMAIN.COM/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/YOURDOMAIN.COM/privkey.pem;

    location / {
        proxy_pass http://127.0.0.1:8449;
        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;
    }

}