...we would allow many tiscali-adsl-users to retrieve the file : http://www.ics-php.com/extra/f_blocked.htm
( the actual setting will only allow a client having the IP address : 123.45.67.89 to retrieve the page at link here above )
PHP CODE ( referer ) /extra/index.php
( .htaccess ) /extra/f_unblocked.htm