configure freeradius to send no response if LDAP database fails

Matthew Almen malmen at
Tue May 1 22:47:58 CEST 2018

Allen, Thank you so much for your response.  I checked and I do have the policy.  I added the config you provided in the LDAP portion of the authorize section of /etc/raddb/sites-enabled/default and it works exactly how you I need it to now!  Matt

-----Original Message-----
From: Freeradius-Users [ at] On Behalf Of Alan DeKok
Sent: Tuesday, May 01, 2018 12:57 PM
To: FreeRadius users mailing list
Subject: Re: configure freeradius to send no response if LDAP database fails

On May 1, 2018, at 1:33 PM, Matthew Almen <malmen at> wrote:
> Hello, I am trying to find out if there is a way to configure freeradius to exit or not send a response to queries if the local LDAP database becomes unavailable after the radius server is started.  The radiusd service will not start if it cannot connect to the local LDAP database which I would expect.  If I stop the LDAP service while freeradius is running I see from the debugging output pf /usr/sbin/radiusd -X that it fails to contact the LDAP server over and over and just keeps sending access-rejects back to our NAS router.  Our router is configured to test the radius server with a test username but it will not mark the server as dead and move onto the next server in the server-group if it receives any response from the radius server.  Even if an access-reject is received that still satisfies the test and the server does not get marked as dead.  I need the server to be marked as dead if LDAP is down and radius is replying with an access-reject for everything.  Any help would be appreciated.  Thanks, Matt

  do this:

	ldap {
		fail = 1
	if (fail) {

  That should do it.

  The magic "fail = 1" prevents it from leaving the "authorize" section if the LDAP module fails.

  It then checks for "fail" and runs the "do_not_respond" policy from raddb/policy.d/control.  If you don't have that policy there, upgrade.

  Alan DeKok.

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