> way, we can create correct databases with standard OpenLDAP scheme like
> 'dc=domain,dc=com' and other database 'dc=domain2,dc=net', etc.
I tried that. It was worthless for practical use (for Postfix,
Exim, Courier, Apache, and NIS PAM). For example, a simple lookup using
ldap://blah/$domain/$local_part in Exim now becomes a complicated
headache, and there are further limitations in Postfix.
We had a discussion about it on the OpenLDAP list a month or so
ago. The responses I got when asking about it were basically "it's a
standard, and it's good to follow standards". But it's not really a
standard; it's a convention inherited from X.500 and I find no use in it
with the singular exception of sharing out your company's LDAP data to a
global directory service.
Other responses were "it sounds like your client LDAP apps are not
very configurable", because it was so much easier to NOT use the
dc=domain,dc=tld scheme. Apache and Exim lack many things, but
configurability is not one of them.
> That way I can keep things more secure and organized.
This is offtopic, but if you could send me a private message
explaining how the dc=domain,dc=tld scheme is any more secure (or
organized, for that matter) I would appreciate it. Or perhaps you were
just refering to have separate servers for different domains?
As to your question, OpenLDAP can defer particular sub-DNs to
sub-servers. So you could specify one top-level server for all your
Courier daemons and then have the top-level server defer to other LDAP
servers for particular sub-domains. That way you could have one standard
config file for Courier, and you would also be able to move data around to
different servers without reconfiguring anything.
Thanks,
Derek Simkowiak
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