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Reverse IP Look-up

Posted on November 2, 2008 at 9:05 pm by Mark Chaney

Reverse IP look-up
Shows the IP address that a website originates from.

Domain or IP:   

if(trim(@$_REQUEST['q']) && checkImage())
{
$q = $_REQUEST['q'];
if(preg_match("#\d+\.\d+.\.\d+.\.\d+.#",$q))
{
$res = gethostbyaddr($q);
}
else
{
$res = gethostbyname($q);
}
echo "
The Host/IP Address you provided resolves to:

“;
echo “$res
“;
}
?>

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