RE: [ActiveDir] Migration between domains with same NetBios name

[Eric Fleischman]

Rename it?   I will admit, I’ve never actually tried this, but I know people who say it works. I think you should try this procedure, on a test box first, and report back. Maybe you should do it to an BDC you bring up just to test, isolated, and see how it goes. http://support.microsoft.com/default.aspx?scid=kb;en-us;169741   If this does work, I’d like to know, so I can recommend it in the future.   The other option is logical data migration but not actual “migration” if you will. IE, ldifde and such. But that comes with the normal “lose the SIDs” type of issues, which I assume to be a major headache for your scenario.   ~Eric   PS: Basically, this mail translates roughly in to me saying, this might or might not work, and I’d like you to be my testing guy to let me know, since I’ve never had occasion to give it a whirl myself.     From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Grillenmeier, Guido Sent: Wednesday, June 15, 2005 10:43 PM To: ActiveDir@mail.activedir.org Subject: [ActiveDir] Migration between domains with same NetBios name   Here is a nice one - I've done quite a few migration with all kinds of scenarios, so I hardly ask questions around this topic.   But when migrating from one NT4 domain to an AD domain which both have the same NetBios names, various issues and potential conflicts come to mind and I wonder if others had to do this in the past, who could share their experience.   Think about an existing NT4 domain called CORP and another existing AD domain called CORP (with DNS=copr.company.com). And now you need to migrate all users and resources from the NT4 CORP to the AD CORP and place AD DCs into the same sites as the exising NT4 DCs...   I can imagine various challenges, besides not being able to setup a trust and thus loosing various options for doing a "normal" migration. At least I have no need to register the AD domain in WINS; all clients are XP, but I know for sure that I'm going to run into various other issues (the worst one being that the account activation and the resource migration has to happend instantaneously, since resource access won't be possible accross the domains). But I'm also thinking of networking issues with and NT4 DC of the one and an AD DC of the other domain in the same ip-subnet...   I wonder how others have tackled this challenge and what issues you ran into.   /Guido