Captcha is a security mechanism to prevent forms from being submited by robots.
Captchas are available on following forms:
Attention
We use the GD::SecurityImage Perl module to generate images. This module is required if you enable Captcha feature. With Debian-based distributions, you may have to install ‘gsfonts’ package.
Go in General parameters
> Portal
> Captcha
:
New in version 2.0.15.
If the default Captcha does not meet your requirements, you can replace it with
a different implementation. See the Lemonldap::NG::Portal::Captcha
manual
page for details on how to implement a Captcha module.