DNS SCANNER!

0,"usec"=>75000)); $len = strlen($request); $port = 53; socket_sendto($sock, $request, $len, 0, $target, $port); $r = socket_recvfrom($sock, $response, 1024, 0, $target, $port); if ($response[3] == "\x80") { echo "[+] Recursion appears to be enabled on $target!
\n"; $logfile="DNSw00t.txt"; $fp = fopen($logfile, "a") or die("Unable to open file!"); fwrite($fp, $target . "\n") or die("Unable to write to file!"); fflush($fp); fclose($fp); return true; } else if ($response == "") { echo "[-] No response from $target
\n"; return false; } else { echo "[-] Recursion appears to be disabled on $target
\n"; return false; } ob_flush(); socket_close($sock); } ?>

dns scanner