PHPcurl: forged IP address and header information. code example _ php instance

Source: Internet
Author: User
This article mainly introduces the PHPcurl counterfeit IP address and header information code examples. This article provides the server and client implementation code, provides the counterfeit function and server detection code, for more information, see curl. Although it is powerful, it can only forge $ _ SERVER ["HTTP_X_FORWARDED_FOR"]. For most IP address detection programs, $ _ SERVER ["REMOTE_ADDR"] is hard to forge:

First, the client. php code

The Code is as follows:


$ Headers ['client-ip'] = '192. 103.229.40 ';
$ Headers ['x-FORWARDED-FOR '] = '2017. 103.229.40 ';

$ HeaderArr = array ();
Foreach ($ headers as $ n => $ v ){
$ HeaderArr [] = $ n. ':'. $ v;
}

Ob_start ();
$ Ch = curl_init ();
Curl_setopt ($ ch, CURLOPT_URL, "http: // localhost/curl/server. php ");
Curl_setopt ($ ch, CURLOPT_HTTPHEADER, $ headerArr); // construct an IP address
Curl_setopt ($ ch, CURLOPT_REFERER, "http://www.163.com/"); // construct a path
Curl_setopt ($ ch, CURLOPT_HEADER, 1 );

Curl_exec ($ ch );
Curl_close ($ ch );
$ Out = ob_get_contents ();
Ob_clean ();

Echo $ out;

Then there is server. php

The Code is as follows:


Function GetIP (){
If (! Emptyempty ($ _ SERVER ["HTTP_CLIENT_IP"])
$ Cip = $ _ SERVER ["HTTP_CLIENT_IP"];
Else if (! Emptyempty ($ _ SERVER ["HTTP_X_FORWARDED_FOR"])
$ Cip = $ _ SERVER ["HTTP_X_FORWARDED_FOR"];
Else if (! Emptyempty ($ _ SERVER ["REMOTE_ADDR"])
$ Cip = $ _ SERVER ["REMOTE_ADDR"];
Else
$ Cip = "cannot be obtained! ";
Return $ cip;
}
Echo"
Access IP: ". GetIP ()."
";
Echo"
Access path: ". $ _ SERVER [" HTTP_REFERER "];

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.