Solved

connect to Whois server via proxy  and proxy chaining

Posted on 2006-07-07
13
3,701 Views
Last Modified: 2012-06-27
Hello experts
My first question here :)
The following code from
http://de2.php.net/manual/de/function.fopen.php#53090
Should  get the continent of a page via proxy  ( I have not tried but it should be fine )
<?php
function proxy_url($proxy_url)
{
   $proxy_name = '127.0.0.1';
   $proxy_port = 4001;
   $proxy_user = "user";    // added
   $proxy_pass = "password";    // added
   $proxy_cont = '';

   $proxy_fp = fsockopen($proxy_name, $proxy_port);
   if (!$proxy_fp)    {return false;}
   fputs($proxy_fp, "GET $proxy_url HTTP/1.0\r\nHost: $proxy_name\r\n");
   fputs($proxy_fp, "Proxy-Authorization: Basic " . base64_encode ("$proxy_user:$proxy_pass") . "\r\n\r\n");    // added
   while(!feof($proxy_fp)) {$proxy_cont .= fread($proxy_fp,4096);}
   fclose($proxy_fp);
   $proxy_cont = substr($proxy_cont, strpos($proxy_cont,"\r\n\r\n")+4);
   return $proxy_cont;
}
?>


The following code from
http://www.zend.com/zend/spotlight/connecting.php
 ( I have not tried but it should be fine )

function lookup($lookup){  
            $whois = "whois.geektools.com";  
            $fp = fsockopen($whois, 43, &$errno, &$errstr, 30);  
            if (!$fp){  
                printf("Error: %s (%s)", $errstr, $errno);  
                $data = 0;  
            } else {  
                $lookup .= "\n";  
                fputs($fp, $lookup);  
                $data = fread( $fp, 16384 );  
                fclose($fp);  
            }  
            return $data;  
        }  

should connect to whois and gives the whois result ( I have not tried but it should be fine )

Now my questions
say I have two proxy servers
proxy1  111.111.111.111:8080
proxy2   222.222.222.222:80

1-How to connect to whois server via proxy ( the script connects to proxy1 then proxy1 connect to the whois server and get the result )
2- How to do proxy chaining  ( the script connect to proxy1 then proxy1 connects to proxy2 then get the result from msn.com  for example )
3- How to do proxy chaining to connect to whois server ( the script connect to proxy1 then proxy1 connects to proxy2 then get the result from whois server  )

Please provide complete code
Thank you in advance
 
0
Comment
Question by:honestman31
  • 5
  • 3
  • 2
  • +1
13 Comments
 
LVL 10

Author Comment

by:honestman31
Comment Utility
Hello experts .
Are my questions difficult or do you need more clarification ?
Please let me know
0
 
LVL 24

Expert Comment

by:slyong
Comment Utility
Proxy chaining is more of a network issue then PHP issue.  So if you are doing [ workstation --> proxy1 --> proxy2 --> Web Server ] connection, you need to setup the proxy chain from proxy1 --> proxy2 first.  There is nothing to do with the PHP script.
0
 
LVL 10

Author Comment

by:honestman31
Comment Utility
slyong ,
Do you mean Proxy chaining  cannot be done in PHP ?
Also what about connecting to whois via proxy ? cannot be done in PHP too?
Thank you
0
 
LVL 24

Expert Comment

by:slyong
Comment Utility
honestman31,

Yes proxy chaining is not to be done on PHP, it can be done in PHP but it is a huge proxy hacking through sockets and things like that.  There is a PHP proxy implementation here: http://sourceforge.net/project/showfiles.php?group_id=52440.  You can also do use other proxy chaining tools like:

http://www.security.nnov.ru/soft/3proxy/
and
http://proxychains.sourceforge.net/

To connect to whois via proxy can be done in PHP with Curl extension:

The code example can be found here http://au2.php.net/manual/en/ref.curl.php
0
 
LVL 29

Expert Comment

by:TeRReF
Comment Utility
What OS are you using?
0
Find Ransomware Secrets With All-Source Analysis

Ransomware has become a major concern for organizations; its prevalence has grown due to past successes achieved by threat actors. While each ransomware variant is different, we’ve seen some common tactics and trends used among the authors of the malware.

 
LVL 10

Author Comment

by:honestman31
Comment Utility
I use windows xp sp2 ( PHP Version 4.3.11 )
and also I have shared hosting uses linux (PHP Version 4.4.2)
Thanks
0
 
LVL 29

Expert Comment

by:TeRReF
Comment Utility
I was asking, because it might be easier to use an external program (like whois on linux).
If you call it with exec() in PHP you can 'catch' the output for use in your PHP script
0
 
LVL 10

Author Comment

by:honestman31
Comment Utility
I cannot install any program on my shared hosting.
My problem is that I provide whois look up in my site after some queries the whois server will block the server IP for a one day  , So I was thinking to query whois via proxies . and even I want to make it more efficient by using  proxy chaining
Thanks
0
 
LVL 1

Accepted Solution

by:
smackadoo earned 500 total points
Comment Utility
of course they will block your server ip.
People running whoiservers pay to run their whois queries and don't allow people to hijack their websites, sucking their bandwidth so you can show it to users on your site (probably making money by showing ads aswell)

Instead of showing their information on your pages, link to their site where they can see the information on their pages.

I'd expect if the whois sites spotted you were abusing their webpages by proxy or by other means, some of them have been known to send a lawyers letter with a bill for all the bandwidth you have used) (eg DnsStuff.com)
0
 
LVL 29

Expert Comment

by:TeRReF
Comment Utility
Good point :)
0
 
LVL 10

Author Comment

by:honestman31
Comment Utility
I have not accepted this answer nor I recieved a notification of the Administrative Comment  dated  08/19/2006 11:45AM PDT,
0

Featured Post

Why You Should Analyze Threat Actor TTPs

After years of analyzing threat actor behavior, it’s become clear that at any given time there are specific tactics, techniques, and procedures (TTPs) that are particularly prevalent. By analyzing and understanding these TTPs, you can dramatically enhance your security program.

Join & Write a Comment

Suggested Solutions

Introduction Many web sites contain image galleries; a common design for these galleries includes a page with a collection of thumbnail images.  You can click on each of the thumbnail images to see the larger version of the image.  This is easily i…
Since pre-biblical times, humans have sought ways to keep secrets, and share the secrets selectively.  This article explores the ways PHP can be used to hide and encrypt information.
The viewer will learn how to dynamically set the form action using jQuery.
This tutorial will teach you the core code needed to finalize the addition of a watermark to your image. The viewer will use a small PHP class to learn and create a watermark.

763 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

11 Experts available now in Live!

Get 1:1 Help Now