Posted by cyberhorse on 11/08/59 11:31

> My guess is that your polling system resides on an intranet? I tried to
> find a solution to the same problem a week ago, as in my case IP
> addresses are dynamically assigned and therefore change daily per user.
> Sadly, I could not find a solution. I would just use cookies and if
> it is paramount that users do not vote more than once, make them login
> before casting their vote.

If it's for an intranet, you could try calling nmap from php, get the
results (including a mac address) and use that information to identify
computers (but not users)

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