Part II of Re: On-Rev Web Form Dropping Data

Bob Sneidar bobs at twft.com
Thu Dec 2 18:02:55 EST 2010


What?? I was right again??? <looks around nervously for signs that the walls may be caving in>

Bob


On Dec 2, 2010, at 2:41 PM, Gregory Lypny wrote:

> Hi Everyone,
> 
> Yesterday I posted a long question (sorry about that) concerning data lost from a web form submitted through my On-Rev site, where two students appear to have submitted quiz answers from the same IP address at virtually the same time.  Bob Sneidar replied asking whether I had accounted for the possibility that more than one person could sign on to my site from the same IP, and I had said that I have not prohibited that.
> 
> Well, I have since spoken to the students who submitted blank quizzes, and it turns out that they live together, share a wireless network, and each has her own computer.  This probably means that they have their router set to share a single IP address or some such thing.  I guess what I should do is revise by sign-in script to disallow multiple sign-ins from the same IP.
> 
> Regards,
> 
> Gregory
> 
> 
> 
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