CAPTCHA feature

Noah's Classifieds supports using CAPTCHA images in some of the forms. CAPTCHAs are used to prevent automated software from performing actions in Noah's. It is a great way to fight against spammers, but your server must fulfill some requirements so that they can work:

• The GD library of Php must be installed (GD is used to generate images),
• FreeType support of Php must be enabled, too.

You can check their presence by either asking your server support, or uploading and displaying a 'phpinfo.php' file on your server. (The 'phpinfo.php' file is a simple text file that contains this: <?php phpinfo(); ?> If you display it in your browser, it gives you a page with a bunch of information about your system setup. Search for 'GD' and 'FreeType' on that page!). In some cases, it can happen that the CAPTCHA image can't be displayed even if the above libraries are both available. From the 4.0.0 release, you will be able to check the CAPTCHA feature on the 'Check' page of Noah's. If the CAPTCHA image is not properly displayed there, visit this link in your browser:

  http://your.classifieds.site/gorum/captcha/captcha.php

If you get either a “Permission denied”, or a “Page doesn't exists” page, at first check that the above 'captcha.php' file surely exists. If that file is really there, but the page is still inaccessible, it means that the permissions are misconfigured on your server. In that case, ask your server support to make it possible to run Php scripts not only in the web root of your site, but also in the sub directories of it! The above link must display nothing but a CAPTCHA image! So, even if it is accessible, but displays some garbage, the feature won't be available for you! (E.g. some hosting services (especially the cheap ones) has been set up so that they prefix every pages of yours with their advertisement banner!)