Installing the modules

As usual, let's install any modules we will need during the chapter now, to save us time later. The modules we need are as follows:

• CAPTCHA: http://www.drupal.org/project/captcha

  Image Captcha is a part of the CAPTCHA package

• reCAPTCHA: http://drupal.org/project/recaptcha

• Mollom: http://drupal.org/project/mollom

These need to be downloaded, extracted to our modules directory, and then enabled so that we can configure and use them later.