Jump to content

Archived

This topic is now archived and is closed to further replies.

hackerkts

How to check unique person

Recommended Posts

As the subject says, how do you guys actually check if the person is unique.
What I mean is, hmm... Let's take this example:

I have a voting system, but I wanna make it only 1 person to vote once.
But I can't set it as 1 person vote one time according to their IP address, some of the people have dynamic IP (which changes everytime they restart their cable/modem)

Is there a way to check MAC address and use it in PHP code ?

Sorry, I'm dumb with computer. :s

Share this post


Link to post
Share on other sites
I don't think you can get the MAC address (that can be spoofed too though). You could check for IP ranged (i.e. 1.2.3.*), an example of this is shown here: http://projects.xaos-ia.com/icebb/browser/trunk/icebb.php#L221

Share this post


Link to post
Share on other sites
Use Sessions, IP, and Cookies to check, 3 levels of protection, should be good enough :)

Share this post


Link to post
Share on other sites
[quote author=hackerkts link=topic=99848.msg393443#msg393443 date=1152340268]
But I can't set it as 1 person vote one time according to their IP address, some of the people have dynamic IP (which changes everytime they restart their cable/modem)
[/quote]

And there is the opposite problem, as in a classroom situation, where several users may have the same IP

Share this post


Link to post
Share on other sites
>.<! Thanks for all the replies, I think I will go with IP address.
The unlucky one will not be able to vote :p

o.O Or I think I might only allow them to vote if they are member :P

Share this post


Link to post
Share on other sites

×

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.