Working with Active Directory on Windows Server 2012 R2

Steffen Kaiser
Tue, 25 Nov 2014 10:21:54 -0000

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On Tue, 25 Nov 2014, Aaron Jenkins wrote:

> I?m having issues getting Dovecot to work with AD on 2012 R2 in a test
environment.
> ?
> Nov 19 09:22:23 auth: Debug: auth client connected (pid=10345)
> Nov 19 09:22:23 auth: Debug: client in: AUTH 1 PLAIN service=imap secured
session=pkJxdDkISwAK0zcd lip=10.211.55.33 rip=10.211.55.29lport=993 rport=56395
> Nov 19 09:22:23 auth: Debug: client passdb out: CONT 1
> Nov 19 09:22:23 auth: Debug: client in: CONT 1  (previous base64 data may
contain sensitive data)
> Nov 19 09:22:29 auth: Debug: client passdb out: FAIL 1 user=aaron.jenkins
temp

Your conf:
auth_bind       = yes
dn              = aaron.jenkins
dnpass          = dummypass1
auth_bind_userdn = CN=%u,CN=users,DC=ad,DC=automaton,DC=uk

Can you really succeed a simple auth with the dn aaron.jenkins ? This
ought to be a full DN. As I understand auth_bind_userdn, you do not need
dn/dnpass anyway, because auth_bind_userdn prevents searching for the
user's DN, in which case Dovecot requires a connection before any user
bind takes place.

I wonder if the log shows the error from this setting or from the user's
login attempt. Could you try another user?

Can you auth from command line via

ldapsearch -x -H ldap://dc1.ad.automaton.uk -D  \
CN=aaron.jenkins,CN=users,DC=ad,DC=automaton,DC=uk -W \
- -b CN=aaron.jenkins,CN=users,DC=ad,DC=automaton,DC=uk

- --
Steffen Kaiser
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