<!-- This is a simple resolver designed for local use						-->
<!-- Not advised to be put on any site without adding some security features-->
<!-- Coded by Null Set (1 Aug 2011)											-->
<!-- Submitted originally to securityoverride.com							-->


<?php
if(isset($_POST['ip'])){
	$ip = $_POST['ip'];
	$hostname_result = gethostbyaddr($ip);
	echo $ip.\" has hostname \".$hostname_result.\"<br /><br />\";
}
if(isset($_POST['addr'])){
	$addr = $_POST['addr'];
	$ip_result = gethostbyname($addr);
	echo $addr.\" has IP \".$ip_result.\"<br /><br />\";
}
?>

<form action='' method='POST' name='ip'>
	IP Address to check: <input type='text' name='ip' /><input type='submit' value='Submit!' />
</form>
<form action='' method='POST' name='addr'>
	Hostname to check: <input type='text' name='addr' /><input type='submit' value='Submit!' />
</form>