'Preventing' HTTP Tunneling Direct HTTP for http://www.example.com/ $ nc www.example.com 80 GET / HTTP/1.0 Host: www.example.com HTTP/1.1 200 OK Date: Thu, 25 Sep 2003 20:30:00 GMT Server: Apache Content-Length: 5773 Connection: close Content-Type: text/html; charset=iso-8859-1 ...