Subject:
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Re: New Poll
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Newsgroups:
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lugnet.publish
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Date:
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Tue, 19 Sep 2000 22:08:22 GMT
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Viewed:
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785 times
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In lugnet.publish, Kevin Loch writes:
> So now I'm going to have to take the time to write additional protections
> to discourage most intentional ballot stuffing. That's work I diddn't think
> I had to do for the "friendliest place on the Internet".
>
> Bah.
OTOH, what I tried out was probably not something that most people would
figure to give a try, so it may not end up being a real issue. If you ask
people not to vote more than once (like explicitly state that, and make
that a condition of submitting a vote), that would eliminate any question
about whether it's OK or not. But ballot stuffing is a huge problem with
polls on the Internet...going by a cookie may have been what caused the
strange skews talked about here:
http://slashdot.org/article.pl?sid=00/09/18/1649233&mode=thread
One approach to weed out ballot stuffing attempts which I've used before with
CLSotW is to hash on a triplet of values, for example string-paste together
(1) IP address, (2) UserAgent, and (3) int(epochtime/3600) and throw out
duplicates. That theoretically doesn't stop script kiddles who fiddle with
the UA string or IP rotation, but may still improve general interaction
significantly.
--Todd
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Message has 1 Reply:
 | | Re: New Poll
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| (...) I did something like that. It checks for frequent occurrances of IP and UA, and separately checks frequent occurances of IP regardless of UA. It also logs each successful vote so abuse patterns can be manually detected and the parameters (...) (24 years ago, 19-Sep-00, to lugnet.publish)
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Message is in Reply To:
| | Re: New Poll
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| (...) Google (...) Yes, Netscape does think resize == reload which is stupid. However, that is not what the problem was here. Hitting reload does not normally register additional votes. Todd stopped accepting cookies at just the right time and that (...) (24 years ago, 19-Sep-00, to lugnet.publish)
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