php-curl-class/docs/nginx/default_reverse_proxy

server_tokens off;

server {
    server_name phpcurlclass.com;
    return 301 $scheme://www.phpcurlclass.com$request_uri;
}

server {
    listen      80;
    server_name www.phpcurlclass.com;
    location / {
        proxy_pass http://127.0.0.1:8000/;
        proxy_set_header Host            $host;
        proxy_set_header X-Real-IP       $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }
}