server {
    listen [::]:8811 ipv6only=off;
    listen [::]:8411 ssl http2 ipv6only=off;

    access_log /var/log/nginx/sigmah.access.log;
    error_log /var/log/nginx/sigmah.error.log;

    location / {
        proxy_pass http://127.0.0.1:8011;
    }
}