By tnash
via ventureskills.wordpress.com
Published: Aug 01 2007 / 01:57
Step by step how to to defending your site with a CAPTCHA that not only has no additional load on your server but also helps digitise books as well. Specific Drupal step by step as well as general introduction.
Comments
rob.desbois replied ago:
The article provides an incredibly poor explanation of how this works. I'd recommend clicking through the link to recaptcha.net for a good explanation.
Tim Nash replied ago:
really its not particularly complicated the CAPTCHA provides 2 words, one is known by the system one is not, if the user guesses the known correctly then they are allowed through to the site, their guess for the unknown word is then compared to others, when a high percentage agrees that word is added to the known list (and to the digitised book)
Not complicated and pretty much excatly what the intro to the article says.
Voters For This Link (15)
Voters Against This Link (0)