Two Factor Authentication - 2FA

Activate 2FA

This is done in the nuconfig.php file using these setting parameters (true) whose default values when disabled are:

$nuConfig2FAAdmin             = false;              //-- Use 2FA authentication for administrator
$nuConfig2FAUser              = false;              //-- Use 2FA authentication for users
$nuConfig2FAFormID =          "nuauthentication";   //-- 2FA form ID. Default form ID: nuauthentication
$nuConfig2FATokenValidityTime = 168;                //-- 2FA Token Validity Time in hours. Default: 7 days (7 * 24 hours)
$nuConfig2FAShowRememberMe    = false;              //-- Show a checkbox "Remember me for X days" in the authentication form (not implemented yet)

Functionality

• If the 2FA authentication is active, a user is redirected to an authentication form after logging in.
• On that form, a two-factor authentication token can be requested, which will be sent by email (or SMS).
• If a valid token is entered, redirection to the actual form will occur.
• One cannot open any other form until authenticated.
• No need to authenticate again after a successful login during the "Token Validity Time" (same machine, browser)

Setting up 2FA

• Navigate to Home -> Builders -> PHP Procedure "nuAuthentication2FA_Template"
• Clone it
• Adapt the code to your needs and save it.

• Setup the nuconfig.php variables above as appropriate like:

$nuConfig2FAAdmin = true;
$nuConfig2FAUser = true;
$nuConfig2FAShowRememberMe = false;