Question

Capturing identity of client machine behind a Proxy server

Asked by: sunnydsouza

I'm developing a ASP.NET webapplication that requires me to identify a client machine for security features in audit. I can get the IP of the client machine that is directly connected to the server but if the client machine is behind a proxy server then the IP of the proxy is captured (which is wrong as i need the identification of the machine from which the application was accessed).

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Asked On
2003-11-27 at 06:18:07ID20810160
Tags

behind

,

identify

,

machines

,

server

Topic

.NET

Participating Experts
4
Points
500
Comments
7

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Answers

 

by: DranizzPosted on 2003-11-27 at 11:46:29ID: 9833374

I believe that is normal, I don't know much about network stuff, but the proxy has this purpose to represent the computer behind it. So you can't see the computers it is hiding, I don't think you could unless you use some kind of rigths to do so, admistrative rigths to list the computers. If it's a proxy in a domain, you could access the AD with those rigths.

 

by: sftwengPosted on 2003-11-28 at 00:33:51ID: 9835740

There might be some help with the uPNP (Universal Plug and Play) protocol, which is intended to handle dynamic port management behind a NAT (Network Address Translation) or VPN (Virtual Private Network) firewall, router or proxy.

 

by: sftwengPosted on 2003-11-28 at 00:37:38ID: 9835765

By the way, for more info on uPNP, go to http://www.upnp.org.

 

by: baltmannPosted on 2004-01-24 at 23:56:03ID: 10194563

What about using the MAC on the network card?
You can fish this out with WMI.

 

by: TheLearnedOnePosted on 2004-02-19 at 15:06:25ID: 10407681

No comment has been added lately, so it's time to clean up this TA.
I will leave the following recommendation for this question in the Cleanup topic area:

Accept: Dranizz {http:#9833374}

Please leave any comments here within the next four days.
PLEASE DO NOT ACCEPT THIS COMMENT AS AN ANSWER!

TheLearnedOne
EE Cleanup Volunteer

 

by: sftwengPosted on 2004-02-19 at 15:13:40ID: 10407748

As one of the other respondents, I agree with your recommendation.

20120131-EE-VQP-002

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