Google authentication FreeRadius stop working

[Alan DeKok]

On Dec 7, 2017, at 12:41 PM, Janet Wang <jzwang at RRC.CA> wrote:
> 
> I have google authentication Free Radius server. It is running Ubuntu. It is for 2 factor authentication for our Horzion View.  Since yesterday afternoon, this radius server stopped working.
> It won't authenticator any domain users anymore.
> I ran radtest from the box itself, it gave me err message:
> radclient: no response from server for ID 88 socket 3
> 
> In the radius.log:
> 
> Thu Dec  7 11:02:07 2017 : Error: Discarding duplicate request from client localhost port 50181 - ID: 222 due to unfinished request 0
> Thu Dec  7 11:02:12 2017 : Error: Discarding duplicate request from client localhost port 50181 - ID: 222 due to unfinished request 0
> Thu Dec  7 11:02:34 2017 : Error: WARNING: Unresponsive child for request 0, in component authenticate module pam
> Thu Dec  7 11:02:35 2017 : Info: WARNING: Child is hung for request 0 in component authenticate module pam.
> Thu Dec  7 11:02:37 2017 : Info: WARNING: Child is hung for request 0 in component authenticate module pam.
> Thu Dec  7 11:02:39 2017 : Info: WARNING: Child is hung for request 0 in component authenticate module pam.
> Thu Dec  7 11:02:42 2017 : Info: WARNING: Child is hung for request 0 in component authenticate module pam.
> 
> Would you please tell me how to solve the issues?

  Fix the back-end so that it responds to the server.

  No amount of poking FreeRADIUS will make the back-end work.

  Alan DeKok.