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TOPIC: Block by Ip after 1 survey is completed

Block by Ip after 1 survey is completed 2 years 9 months ago #69577

  • elti69
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Hello,
I'm new at limesurvey and programming in general
I was wondering if there is a way to block the survey answer to one per IP? the cookies can be easily deleted and so people can answer the survey as many times as they want.
Thanks for your responses
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Re: Block by Ip after 1 survey is completed 2 years 9 months ago #69612

  • Mazi
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Even using IPs is no save solution because IPs change. Only very few people use their "own" IP, all others are assigned an IP from their provider and when re-connecting, they receive a new one.

The only safe way to be sure that a user only participates once is to use tokens.

Best regards/Beste Grüße,
Dr. Marcel Minke
(Limesurvey Head of Support)
Need Help? We offer professional Limesurvey support
Contact: marcel.minke(at)limesurvey.org'"
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Re: Block by Ip after 1 survey is completed 2 years 9 months ago #69616

  • elti69
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If I understand the tokens correctly, the people answering the poll all have to be known in advance, and the token is then sent to them.

I'm posting my urvey on many forums and facebook twitter etc to get the maximum input. the token strategy is impossible for me right?
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Re: Block by Ip after 1 survey is completed 2 years 9 months ago #69617

  • Mazi
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Tokens don't need to be predefined. At the survey setings you can "allow public registration" which means that the user will fill out first name, last name, email and then receive an email after having registered. That emails contains their newly created token and a link to the survey.

Best regards/Beste Grüße,
Dr. Marcel Minke
(Limesurvey Head of Support)
Need Help? We offer professional Limesurvey support
Contact: marcel.minke(at)limesurvey.org'"
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Re: Block by Ip after 1 survey is completed 2 years 9 months ago #69619

  • elti69
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OK thank you.
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Re: Block by Ip after 1 survey is completed 2 years 9 months ago #69625

  • Mazi
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elti69 wrote:
OK thank you.
You're welcome!

If our hints have been helpful and you enjoy limesurvey please consider a donation to the team .
We do all this in our free time and you don't have to pay a penny for this software.

Without your help we can't keep this project alive.

Best regards/Beste Grüße,
Dr. Marcel Minke
(Limesurvey Head of Support)
Need Help? We offer professional Limesurvey support
Contact: marcel.minke(at)limesurvey.org'"
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