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Readme file for the CAPTCHA module for Drupal
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captcha.module is the basic CAPTCHA module, offering general CAPTCHA
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administration and a simple math challenge.
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Submodule image_captcha.module offers an image based challenge.
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Installation:
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Installation is like with all normal drupal modules:
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extract the 'captcha' folder from the tar ball to the
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modules directory from your website (typically sites/all/modules).
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Dependencies:
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The basic CAPTCHA module has no dependencies, nothing special is required.
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Conflicts/known issues:
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CAPTCHA and page caching do not work together currently.
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However, the CAPTCHA module does support the Drupal core page
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caching mechanism: it just disables the caching of the pages
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where it has to put its challenges.
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If you use other caching mechanisms, it is possible that CAPTCHA's
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won't work, and you get error messages like 'CAPTCHA validation
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error: unknown CAPTCHA session ID'.
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Configuration:
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The configuration page is at admin/config/people/captcha,
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where you can configure the CAPTCHA module
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and enable challenges for the desired forms.
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You can also tweak the image CAPTCHA to your liking.
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