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cookie protection

Posted: Fri May 02, 2008 6:03 am
by gogobg
So I've this idea where people click on link, go to page and vote for this page. But only once in 24 hours.
This is where I need the cookie, but if this cookie is deleted from the clients computer they can vote again.
Is it possible to create some kind of protection on existing cookie on client computer from being deleted?
Or is there anyother solution that can work for me?

Thank you.

Re: cookie protection

Posted: Fri May 02, 2008 1:14 pm
by Christopher
You can also try to match their IP address, browser string, etc. But all are spoofable.