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RE: off topic : metadirectory
Hi,
I would certainely expect for enterprise environments using a directory to
look at servers that provide "dynamic" joins (as well as synchronous ) to
applications such as Oracle, NT, PeopleSoft and so on. This provides a basis
for a single point of access and control for enterprise users, providing the
ability to support SSO and PKI amongst other things. Making it dynamic
provides to some degree real-time capability. This is something many
directory vendors are doing, so synchronous is a good starting point but
OpenLdap when moving into the meta arena should aim to catch up with levels
of joins to apps and how it does this.
Thanks,
Dhiren.
Dhiren Pankhania wrote:
>
> you will obtain info from the Burton Group, Syntegra (Control Data),
> Critical Path (Isocor), iPlanet (Sun) and a number of other organisations.
> They will provide platform support and what environments they will apply
> meta calls.
>
> Metadirectories is not a defined standard so all tools provided are
> proprietary in nature but will use backend directory services for
knowledge.
> As for openldap, I do not know of any organisation that has provided meta
> capability there, but there is no reason for not developing one.
Many features go under the definition of meta-directory. In OpenLDAP
there's an attempt to implement a multi-target LDAP proxy that glues
together different directories under a common naming context, possibly
thru regex/map-based dn rewriting. It is called back-meta, and is
currently in the HEAD of the CVS. Eventually it might evolve in
something
more sophisticated, by adding a synchronous join capability.
To summarize:
current back-meta: shows independent entries on separate servers as
belonging to the same naming context; there's no control for duplicate
results.
(future?) synchronous join: different portions of a single entry may
reside on different servers, and the meta-directory shows it as a unique
entity.
Pierangelo.
--
Dr. Pierangelo Masarati | voice: +39 02 2399 8309
Dip. Ing. Aerospaziale | fax: +39 02 2399 8334
Politecnico di Milano | mailto:masarati@aero.polimi.it
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