Re: Obtain real IP address of client

Tech-Archive recommends: Fix windows errors by optimizing your registry

"Peter Bromberg [C# MVP]" <pbromberg@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote
in message news:32D3EE58-F126-4518-A28A-90F9ADD4F69F@xxxxxxxxxxxxxxxx
Maybe what you really need to do is make people log in, and store their
credentials in such a way that if they log in a second time with the same
credentials, you'll be able to detect that's a duplicate login. Then you
needn't worry about IP addresses.
-- Peter
Recursion: see Recursion
site: http://www.eggheadcafe.com
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Detecting multiple logins by the same account is easy, but isn't what I'm
after. What I would like to be able to is to distinguish between multiple
sessions (logged in) from one pc and those which are from two or more pcs.
The rational being not to stop someone from having multiple browser windows
open on their pc, but to stop or at least detect if the same account is
logged in from two or more different pcs (in the same office). I hope you
can see what I'm aiming for.

I know there are issues like has the browser been closed without logging
off, but I can see workarounds for issues like those. Alexey has given a
work around that works for telling apart pcs behind a proxy, but I'm stuck
on how to tell two pcs apart which are behind the same router. Any ideas
appreciated.
--
Brian Cryer
www.cryer.co.uk/brian


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