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On Wed, 19 Jul 2006, Kurt D. Zeilenga wrote:
At 08:01 AM 7/19/2006, Adam Tauno Williams wrote:
Are there any recomendations should I use posixGroup or
groupOfUniqueNames for new installations?
Neither! Use "groupOfNames"; "groupOfUniqueNames" is not what you think
it is.
That is because of the tantalizing name "groupOfUniqueNames", making
you think that names in "groupOfNames" are not unique.
No, they are not. Multiple objects, at different times, can be
named by the same DN. For instance, uid=adam,dc=example
may at one time refer an object representing you and at
another time refer to an object representing some other Adam.
Uh-oh, it sounds like different people are using different definitions of
"unique".
This one seems to mean that a real-world object referred to by any
specific DN is always the same one. That's one kind of uniqueness over
time. One could propose a system in which, once a directory object is
created, it cannot be destroyed and recreated, which is an internal rather
than external uniqueness over time.
Another sort of uniqueness is instantaneous uniqueness across a namespace.
At any instant DNs have to be unique, but RDNs do not, for example. I
think that the earlier question actually doesn't have much to do with a
hierarchial directory, but rather with references from the directory to
unique names within a flat namespace.
I could probably bore you with more forms of "uniqueness", but my point is
that we need a precise specification of the desired relationship before we
can say whether system X implements it.
- --
Mark H. Wood, Lead System Programmer [EMAIL PROTECTED]
Typically when a software vendor says that a product is "intuitive" he
means the exact opposite.
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