I have found an upstream ticket which seems to be exactly our issue: ITS#7107 [1].
It's fixed on upstream, but was fixed after the release of 2.4.28. It's a one line fix, see git commit [2]. I don't have tested if it effectivelly fix our issue, but description seem very close to our problem. [1]: http://www.openldap.org/its/index.cgi/Software%20Bugs?id=7107;selectid=7107 [2]: http://www.openldap.org/devel/gitweb.cgi?p=openldap.git;a=commit;h=85c1c545f4e20882a2f748fcef5f732ea2d2ecf6 -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openldap in Ubuntu. https://bugs.launchpad.net/bugs/1023025 Title: search fail with get_ctrls : controls require LDAPv3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openldap/+bug/1023025/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs