[rt-users] RT 4.4.1 - ExternalAuth intermittently failing
ktm at rice.edu
Tue Nov 22 16:40:11 EST 2016
On Tue, Nov 22, 2016 at 04:13:46PM -0500, Mike Johnson wrote:
> We just went live with RT 4.4.1 and it seems that LDAP authentication is
> It has now died 2 days in a row, at approximately the same time.
> The RT log is showing the following error:
> 2819] [Mon Nov 21 21:10:28 2016] [critical]:
> RT::Authen::ExternalAuth::LDAP::_GetBoundLdapObj Can't bind:
> LDAP_INVALID_CREDENTIALS 49
> This seems like a generic LDAP error, and it's not pointing us to a
> specific issue.
> The user that we are binding with is a user that was in-use on our RT 3.8.X
> environment that hadn't had an issue in years (3?).
> Restarting apache resolves the immediate issue, but clearly there is
> something else going on that we should be able to fix permanently. Anyone
> have any ideas on where to look?
> This didn't come up in our testing, but I don't believe we had the volume
> of credential testing that we do in prod.
> Any help would be great!
> P.S. The LDAP server is a Microsoft Active Directory server. This same
> server was being used for ExternalAuth extension in 3.8.
You probably will need to check your AD logs as well. We have seen issues
with AD authentication when an account is locked out by a bad password
login attempt. Since it is about the same time of day, maybe something
else is trying to login with those credentials and causing it to lock.
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