How To activate Captcha on OJS

CAPTCHA Settings

You can configure OJS to use CAPTCHA challenges to prevent user registration and comment abuse. Find the CAPTCHA Settings section in config.inc.php and uncomment and change to the following:

[captcha]

; Whether or not to enable Captcha features
captcha = On

; Whether or not to use Captcha on user registration
captcha_on_register = On

; Whether or not to use Captcha on user comments
captcha_on_comments = On

; Font location for font to use in Captcha images
font_location = /usr/share/fonts/truetype/freefont/FreeSerif.ttf

Please note that your server needs to support the GD (PHP4) or GD2 (PHP5) library for this to work, and that you need to point yourfont_location variable to a font that exists on your system, which may be different than the default provided.

 

Repost from: here.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s