How to disable the same person to play my RPG game as two different persons?

Posted by Donator on Stack Overflow See other posts from Stack Overflow or by Donator
Published on 2010-05-15T19:30:14Z Indexed on 2010/05/15 19:34 UTC
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Ok, so title says it all. Of course, I store all players' ip addresses in mysql and I can check if there is a person with the same ip address before he registers, but then, he can register to my page at school or wherever he wants. So, any suggestions?

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