If you plan to use an image CAPTCHA
- You MUST create a directory where the CAPTCHA will be written
- Joomla needs read and write rights to this directory
- The directory must be publicly accessible via a URL
I.e. the CAPTCHA directory is /var/www/yoursite.com/images/captcha
the URL would be http://yoursite.com/images/captcha - Creates CAPTCHA files with prefix "captcha_" and erases old images
- Do not set the CAPTCHA word length to greater than 8
If you are unsure of the exact path to use, proceed as follows
- Login as a Joomla admin
- Go to the System - Global Configuration menu
- Select Server
- Examine the setting in the field Path to Temp Folder
- One level up will be the /path/to/joomla
- Use the tools provided by your web hosting provider to create a folder /path/to/joomla/captcha
- This is the path you will then need to specify when configuring the module:
Advanced Options - Directory to Write Captchas - Make sure the "owner" of this folder is the same as the owner for the /path/to/joomla folder
Example
You go to the System - Global Configuration - Server menu, and see the following setting next to Path to Temp Folder:
/homepages/22/875122/htdocs/joomla/tmp
This means that the /path/to/joomla is this:
/homepages/22/875122/htdocs/joomla/
Using the tools provided by your web hosting provider you create a folder called "captcha" under the /path/to/joomla.
The entry you will now make for the module config in the Directory to Write Captchas advanced option:
/homepages/22/875122/htdocs/joomla/captcha