How to combine kolab and posix groups

Alexander Gran alexg at
Thu Apr 22 21:57:04 CEST 2010

Am Donnerstag 22 April 2010 17:53:36 schrieb Gunnar Wrobel:
> Look at the core feature of a group: A group combines a number of
> members. If you look at the posixGroup you see that its member
> attribute is "memberUid" which identifies a user by the uid he has on
> a system. The kolabGroupOfNames however derives from groupOfNames and
> that uses the "member" attribute which is a DN within the LDAP tree.
> This is something completely different than the uid for the posixGroup.
> I do not deny that there may be a mapping. But that mapping cannot be
> defined by simply merging the two object types. I'm interested to read
> about how Christian solved this problem.

Well, I see a difference between kolab and Posix Groups: posix groups contain 
only PosixAccounts (if you ignore the possibility that other classes could 
have a uid attribute as well), whereas kolabGroups can contain anything in the 
ldap, including e.g. other groups.
As far as I can see, kolab goups contain just user accounts, and these are - 
at least for me - posixAccounts. When I try to add a group to a group I 
thereofre get:
No user with email address, UID or alias customersmachsim at

Therefore I don't (yet?) see the need for the difference?



Dipl. Inform. Alexander Gran, MBA
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