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Re: reverse proxy identification

To: sami ghourabi <sami.ghourabi@icn.com.tn>
Subject: Re: reverse proxy identification
From: Javier Fernández-Sanguino <jfernandez@germinus.com>
Date: Fri, 19 Jan 2007 13:47:49 +0100
Cc: pen-test@securityfocus.com
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sami ghourabi dijo:
However I dont think that for each IP adress there is a physical server, but perhaps a multiplexing device that also does application firewalling.
According to nmap it may be a Blue Coat SG4.

If it's a Bluecoat (or some other reverse proxy) which is load balancing between different servers you can sometimes determine the techonology based on the cookie used for tracking users at the app level (although not everybody does this, some people configure reverse proxies to do persistence by IP address or, even, no persistence).

You can use the cookie database available at: http://www.owasp.org/index.php/Category:OWASP_Cookies_Database

Regards

Javier





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