Hmmm, interesting question. I think it would just have to send the new DNs
around to everything. If you have any change in security in that new level
that could cause some work for the DCs as well.

I don't think I would be as concerned about replication as I would about
hard coded DNs in non-linked attributes or in applications. I have seen LDAP
based LOB apps fail spectacularly with mass moves of objects from one
location to another in AD. Once had a finance app that assumed users would
be in a specific place even though we said over and over again they would be
subject to moving and it wouldn't be announced since the moves would be
driven by local admins for putting users in specific GPO OUs but still the
finance app assumed a specific structure and sure enough, a mass of users
were moved and their app blew up horribly. What was worse they had no one
who had any clue what the app was really doing so I ended up troubleshooting
their perl to find the issue. 

This is actually a decent sized problem in any medium to fairly large
environment because anyone can write or integrate an LDAP app into your
architecture without DA/EA involvement. You usually don't find out about
them until you take down a DC that they hard coded to or change the
structure of the directory that you hard coded to or something else that
breaks them based on their assumptions on what would always be.

  joe

 

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Thommes, Michael M.
Sent: Monday, October 18, 2004 2:45 PM
To: [EMAIL PROTECTED]
Subject: [ActiveDir] AD replication impact from inserting OU in the middle?

We might want to insert an OU placeholder in the "middle" of our Active
Directory structure, i.e., changing "cn=abc,.....,ou=def,dc=xyz,dc=com"
to "cn=abc,.....,ou=def,ou=GHI,dc=xyz,dc=com".  Can anyone give me an idea
of what impact this will cause on replication?  We have multiple root DCs
with one on a slow link.  I contend that every object below the new OU
structure will at least have its "Distinguished Name" rewritten (other
attributes also?).  Some discussion has ensued.  Any comments are
appreciated!  Thanks!

Mike Thommes
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