强大的PHP伪造IP头、Cookies、Reference……

<?
$fp = fsockopen ("passport.baidu.com", 80,
$errno, $errstr, 30);
if (!$fp) {
echo "$errstr
($errno)<br>\n";
} else {
$msg="GET
/?login&username=lapiaotuan22&password=oyhz123456
HTTP/1.0\r\n";
$msg.="Host:passport.baidu.com \r\n";
$msg.="Referer:
http://passport.baidu.com/ \r\n";
$msg.="Client-IP:
202.101.201.11\r\n";
$msg.="X-Forwarded-For: 202.101.201.11\r\n";
//主要是这里来构造IP
$msg.="Connection: Close\r\n\r\n";
fputs ($fp,
$msg);
while (!feof($fp)) {
echo fgets ($fp,1024);
}
fclose
($fp);
}
?>
HTTP-REFERER这个变量已经越来越不可靠了，完全就是可以伪造出来的东东。
以下是伪造方法：
PHP(前提是装了curl):
PHP代码
$ch = curl_init();
curl_setopt ($ch, CURLOPT_URL, "http://www.dc9.cn/xxx.asp
");
curl_setopt ($ch, CURLOPT_REFERER, "http://www.dc9.cn/
");
curl_exec ($ch);
curl_close ($ch);
PHP(不装curl用sock)
PHP代码
$server = 'www.dc9.cn';
$host = 'www.dc9.cn';
$target = '/xxx.asp';
$referer =
'http://www.dc9.cn/'; // Referer
$port = 80;
$fp = fsockopen($server,
$port, $errno, $errstr, 30);
if (!$fp)
{
echo "$errstr
($errno)<br />\n";
}
else
{
$out = "GET $target
HTTP/1.1\r\n";
$out .= "Host: $host\r\n";
$out .= "Cookie:
ASPSESSIONIDSQTBQSDA=DFCAPKLBBFICDAFMHNKIGKEG\r\n";
$out .= "Referer:
$referer\r\n";
$out .= "Connection: Close\r\n\r\n";
fwrite($fp, $out);
while (!feof($fp))
{
echo fgets($fp, 128);
}
fclose($fp);
}
IP也可以伪造
$fp = fsockopen ("192.168.0.128", 80, $errno, $errstr, 30);
if (!$fp)
{
echo "$errstr ($errno)<br>\n";
} else {
$msg="GET /003.php
HTTP/1.0\r\n";
$msg.="Host: 192.168.0.128\r\n";
$msg.="Referer: http://www.baidu.com\r\n
";
$msg.="Client-IP: 1.1.1.1\r\n";
$msg.=&quo