[cifs-protocol] [REG:110102774074009] "description" attribute in AD

Obaid Farooqi obaidf at microsoft.com
Wed Oct 27 15:21:48 MDT 2010

Hi Matthias:
My name is Obaid Farooqi and I'll help you with this issue regarding the definition of description in AD. I'll be in touch as soon as I have an answer. Please feel free to contact me if you have any question/clarification regarding this issue.

Obaid Farooqi
Escalation Engineer | Microsoft

-----Original Message-----
From: Matthias Dieter Wallnöfer [mailto:mdw at samba.org]
Sent: Wednesday, October 27, 2010 3:11 PM
To: Interoperability Documentation Help
Cc: cifs-protocol at samba.org
Subject: "description" attribute in AD

Hi dochelp team,

the "description" attribute in AD seems very special. Altough defined as multi-valued in the schema it's defacto single-valued.

That means:
- on LDAP entry add operations you are able to set it multi-valued
- on LDAP entry change operations you aren't - e.g. if you try to replace it multi-valued or perform a multi-valued add you get ERR_ATTRIBUTE_ALREADY_EXISTS.

As far as I know I didn't find much in the docs about this strange behaviour and as far as I can tell it only applies to "description". It would be nice to enhance MS-ADTS regarding it and to start some investigation if it wouldn't be better to really define it as single-valued in the schema.


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