Re: OpenLDAP, SASL and TLS

[Kristof Takacs <kristof.takacs@gmail.com>]

Thanks for letting me know that it's an ok use case.

The back end is AD, but it is a "black box" to me.  I have access, but the event viewer is empty.  It does work if I use Kerberos only or TLS with simple bind through.  Is there anything you can suggest that I can do on the server side to show me what it may be complaining about?

Thanks for your help!

Kris

On Tue, Oct 7, 2014 at 10:31 AM, Howard Chu <hyc@symas.com> wrote:

Kristof Takacs wrote:

Is the usecase of SASL authentication with Kerberos to the LDAP server and TLS
to the LDAP server for all other communication a valid one?

Certainly it is valid, and has worked in the past. Just keep in mind that what you've described here is SASL/GSSAPI + TLS on the same session. Not all LDAP servers support that, M$ AD is known to have failed on that in the past. It has been tested to work fine in OpenLDAP before.

I have not personally tested with the version of Cyrus SASL and Heimdal Kerberos you mentioned, so no comment on the current state of things.

Thanks,
Kris



On Mon, Oct 6, 2014 at 2:27 PM, Dan White <dwhite@olp.net
<mailto:dwhite@olp.net>> wrote:

    On 10/06/14 13:24 -0500, Dan White wrote:

        There is a known bug in Cyrus SASL which triggers this problem:

        https://bugzilla.cyrusimap.__org/show_bug.cgi?id=3480
        <https://bugzilla.cyrusimap.org/show_bug.cgi?id=3480>

        If adding "-O maxssf=0" to your ldapsearch command, when using both
        Kerberos and TLS, works then that's likely the culprit.


    Apparently I can't read my own bug reports. This may or may not be your
    issue.

    --
    Dan White

--
  -- Howard Chu
  CTO, Symas Corp.           http://www.symas.com
  Director, Highland Sun     http://highlandsun.com/hyc/
  Chief Architect, OpenLDAP  http://www.openldap.org/project/