Captcha¶
Presentation¶
Captcha is a security mechanism aimed to prevent robots to submit forms.
Captchas are available on the following forms:
- Login form: where user enters login and password to authenticate
- Password reset by mail form: where user enters mail to recover a lost password
- Register form: where user enters information to create a new account
Attention
We use the Perl module GD::SecurityImage to generate images, you need to install it if you enable Captcha feature.
Configuration¶
Go in General parameters > Portal > Captcha:
- Activation in login form: set to 1 to display captcha in login form
- Activation in password reset by mail form: set to 1 to display captcha in password reset by mail form
- Activation in register form: set to 1 to display captcha in register form
- Size: length of captcha
- Captcha module: allows you to use a custom Captcha module, see below. Leave it blank to use the default Captcha implementation
- Captcha module options: options for the custom Captcha module
Custom Captcha modules¶
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.