PHP Curl fake IP Source instance

Curl the file to issue the request fake_ip.php:

Code

The code is as follows

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<?php $ch = Curl_init (); $url = "http://localhost/target_ip.php"; $header = Array ( ' client-ip:58.68.44.61 ', ' x-forwarded-for:58.68.44.61 ', ); curl_setopt ($ch, Curlopt_url, $url); curl_setopt ($ch, Curlopt_httpheader, $header); curl_setopt ($ch, curlopt_returntransfer,true); $page _content = curl_exec ($ch); Curl_close ($ch); echo $page _content; ?> The requested target file target_ip.php: Code <?php echo getenv (' http_client_ip '); echo getenv (' http_x_forwarded_for '); echo getenv (' remote_addr '); ?>

The IP print order in the target file target_ip is the IP capture sequence of many open source systems at present
Visit fake_ip.php and see the results:
58.68.44.61
58.68.44.61
127.0.0.1

Instance

Curl is really tough and can forge IP and source.
1.php request 2.php.

The code is as follows

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1.php Code: $ch = Curl_init (); curl_setopt ($ch, Curlopt_url, "http://localhost/2.php"); curl_setopt ($ch, Curlopt_httpheader, Array (' x-forwarded-for:8.8.8.8 ', ' client-ip:8.8.8.8 ')); Constructing IP curl_setopt ($ch, Curlopt_referer, "http://www.111cn.net/"); Structural antecedents curl_setopt ($ch, Curlopt_header, 1); $out = curl_exec ($ch); Curl_close ($ch); The 2.php code is as follows: function Getclientip () { if (!empty ($_server["HTTP_CLIENT_IP"])) $ip = $_server["Http_client_ip"]; else if (!empty ($_server["http_x_forwarded_for"])) $ip = $_server["Http_x_forwarded_for"]; else if (!empty ($_server["REMOTE_ADDR"])) $ip = $_server["REMOTE_ADDR"]; Else $ip = "Err"; return $IP; } echo "IP:". Getclientip (). ""; echo "Referer:". $_server["Http_referer"];

Forgery success, this is not to "brush the ticket" friends to provide a good exchange of IP program!!