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W2K Active Direcotry Replication Problem

By jasonb ·
Have three domains. From domain A can replicate domain b & c but from either domain b or c can not replicate domain a but can replicate b or c. Under NTDS Settings do not have a DC listed. Tried to add but don't work. I'm and Enterprise & Schema Admin. Any ideas how to fix?

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W2K Active Direcotry Replication Problem

by zbrain75 In reply to W2K Active Direcotry Repl ...

It sounds like you may be using a master domain model where domain a is your master. Domains b and c are your resource domains. My guess, from what you say, is that domains b and c trust each other and they trust domain a, but domain a does not trust domains b or c.
If this is the case you will need to set up a trust relationship so domain a trusts both domains b and c in order to replicate domain a from b and c.

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W2K Active Direcotry Replication Problem

by jasonb In reply to W2K Active Direcotry Repl ...

I just can't give you any points for this answer. Windows 2000 (W2K) automatically have two-way trusts. So your answer I feel is way to general and not spefic. For these point I'm look for spefic answer.

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W2K Active Direcotry Replication Problem

by binarypc In reply to W2K Active Direcotry Repl ...

The previous answer is a problem because you don't have to setup trust relationships with Windows 2000. You automatically have two-way kerberos transitive trusts between your domains. Are your domains setup at different physical locations (differentsubnets)? You may need to go into the Sites and Services utility and set up your additional sites for your other controllers. I would then make them replication partners. You can set a cost of replication based on their link speeds. Lower cost for higher speed links and higher cost for lower speed links (i.e. you link a to b to c to a; your 'a to a' link is 56k and your 'a to b' and 'a to c' are T1's. You would want a lower cost for the T1's and higher for the 56k.)

If you are having AD problems, one of the best books I have is 'Windows 2000 Active Directory' by Oreilly Press. Another good introductory book is 'Active Directory for Dummies' (and no, its not an insult.) Good luck and let us know how you do.

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W2K Active Direcotry Replication Problem

by binarypc In reply to W2K Active Direcotry Repl ...

correction to my line in parantheses (i.e. you link up a to b to c to a; your 'c to a' link is 56k and your 'a to b' and 'b to c' links are T1's. You would want a lower cost for the T1 links and higher for the 56k link.)

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W2K Active Direcotry Replication Problem

by binarypc In reply to W2K Active Direcotry Repl ...

In reply to ShannonSnowden you would not retain a 4.0 PDC in that configuration. You would set one of your 2k DC's up as a PDC emulator and leave your 4.0 BDC's in place. In this configuration Active Directory supports one-way non-transitive trusts (to the NT 4.0 domain).

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W2K Active Direcotry Replication Problem

by binarypc In reply to W2K Active Direcotry Repl ...

to Jason Bunnell: This may narrow it down for you. Open AD Sites & Services. There you should have two sites listed which contain your 3 servers. Open up Inter-site transports and then open the IP folder. Right click on IP and select "New Site Link". The two sites should be in it by default. Name it and click "ok". At this point you should be able to control replication times and create replication partners between the sites.

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W2K Active Direcotry Replication Problem

by binarypc In reply to W2K Active Direcotry Repl ...

I have a couple of questions for you. Have you tried to manually kick off replication? When you do this, what are you seeing in Event Viewer? Have you checked the FRS logs? Are you up to SP1 (this is probably most important)?

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W2K Active Direcotry Replication Problem

by binarypc In reply to W2K Active Direcotry Repl ...

Based on your earlier information, I'm assuming you have three subnets. A separate one for each Domain. When you open the subnets folder, right-click on the assigned range and select properties; Have you determined that the ranges belonging to A&B are assigned to their single site and the range belonging to C is assigned to its site?

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W2K Active Direcotry Replication Problem

by binarypc In reply to W2K Active Direcotry Repl ...

I know this is a drastic fix (and I'm hoping you are not in production), but I'm hoping it can help. If you cannot setup a replication partner link between b & a, have you thought of removing AD (using DCPromo) from the DC for Domain B and reinstalling it. If at that point you can set the replication partners, you may want to do the same thing in Domain C.

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W2K Active Direcotry Replication Problem

by binarypc In reply to W2K Active Direcotry Repl ...

Have you thought of configuring/designating a bridgehead server for the two sites?

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