Backend choice by users

By default, only the configured authentication backend is available for users.

Contrary to multiple backend stacking, backend choice will present all available authentication methods to users, who will choose the one they want.

The choice will concern three backends:

• Authentication
• Users
• Password

The chosen backends will be registered in session:

• $_auth
• $_userDB
• $_passwordDB

Authentication choice will also be registered in session:

• $_authChoice

In Manager, go in General Parameters > Authentication modules and choose Choice for authentication.

Then, go in Choice Parameters:

• URL parameter: parameter name used to set choice value (default: lmAuth)
• Allowed modules: click on New chain to add a choice.

Define here:

• Name: Text displayed on choice tab.
• Authentication module
• Users module
• Password module
• URL: optional, can be used to redirect on another URL (for example https://authssl.example.com). This is mandatory if you want to use an Apache authentication module, which is run by Apache before showing the LemonLDAP::NG portal page.
• Condition: optional, can be used to evaluate an expression to display the tab.