--On Saturday, November 16, 2019 12:24 PM -0500 Jean-Francois Malouin Jean-Francois.Malouin@bic.mni.mcgill.ca wrote:
It's purely informational and can be ignored.
OK!
Just so this could be helping others, can you tell us what is triggering it?
One or more of your LDAP clients is requesting that control when connecting to the server. The server doesn't recognize that control and logs the request.
You can obtain more information about what the control being requested does at https://tools.ietf.org/html/draft-masarati-ldap-deref-00
Unless you are specifically wanting to use this feature, there is no need to enable it (i.e., no need to load the deref overlay). It may be possible to disable this behavior on the client side as well, depending on the client.
Regards, Quanah
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Quanah Gibson-Mount Product Architect Symas Corporation Packaged, certified, and supported LDAP solutions powered by OpenLDAP: http://www.symas.com