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tbarua
Staff
Staff
April 22, 2025

Technical Tip: How to login as remote RADIUS admin while Push notification is selected in FortiAuthenticator as RADIUS server

  • April 22, 2025
  • 0 replies
  • 356 views
Description

 

This article describes how to log in as a remote RADIUS admin while the Push notification is selected in FortiAuthenticator as a RADIUS server.

 

Scope

 

FortiWeb, FortiAuthenticator 6.6.x.

 

Solution

 

In order to configure remote RADIUS administrators using FortiAuthenticator as a RADIUS server, see Technical Tip: How to configure FortiWeb Remote Radius Administrators using FortiAuthenticator as RADIUS server.

 

Step 1: Generally, if any remote RADIUS admin uses Two-factor authentication, a token code prompt appears. For example:

 

fortiweb2.png


fortiweb3.png

 

The token needs to be inserted manually. 

 

Step 2: However, if the option 'trigger push without RADIUS challenge' is enabled, the access-challenge does not occur in the authentication process.

 

While keeping the option enabled, the FortiWeb remote RADIUS admin fails with the following error, and the token code option prompt does not appear.

 

fortiweb4.png

 

The admin user needs to concatenate the password and OTP in the initial credential submissions in order to login as a remote RADIUS admin using two-factor authentication. For example: 

  • password+6 digit OTP -> password123456

 

fortiweb5.png

 

Step 3: To see logs in the FortiAuthenticator RADIUS server:

  • Open: http://<FAC_IP/debug/
  • Select: RADIUS -> Authentication.
  • Admin1 Test Authentication Negotiation is visible.

 

fortiweb6.png

 

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