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Re: Browser fingerprinting? [message #182786 is a reply to message #182780] Fri, 13 September 2013 00:31 Go to previous messageGo to previous message
Jerry Stuckle is currently offline  Jerry Stuckle
Messages: 2598
Registered: September 2010
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On 9/12/2013 5:56 PM, Gilles wrote:
> Hello
>
> I googled the archives of this ng, but didn't find much.
>
> I'd like to find some good PHP code that does what Panopticlick does,
> namely uniquely identify a user's browser even when they connect as
> anonymously as they can, ie. either in incognito mode or by running a
> browser in a virtual host:
>
> www.lifehacker.com/5458513/panopticlick-shows-how-easy-your-browser-is-to-t rack
>
> The goal is to keep trolls away from a site. As there aren't that many
> browser available, they should tire quickly, profited they even think
> of installing another browser.
>
> Is there some code PHP code for that?
>
> Thank you.
>

You can easily detect the browser the user is using, and you can detect
the IP address.

However, browsers can easily be forged (as others have indicated), and
since there are only a few browsers available, a lot of people use them.

You can detect IP addresses, but there is no way to determine the REAL
IP address if the user is using an anonymous proxy.

The bottom line is - you really can't protect against trolls; they have
too many ways around things.

The article you reference is good marketing material - I would suspect
it works on both browser and IP address. But in real life it has more
holes than swiss cheese.

--
==================
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Jerry Stuckle
JDS Computer Training Corp.
jstucklex(at)attglobal(dot)net
==================
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