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post #1 of 7 Old 02-20-2006, 12:56 PM Thread Starter
 
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Frustrating AD Problem

Ok, I'm running up against a problem that's driving me insane. We have a medium-sized distributed network that originally contained just Windows 2000 Advanced servers. There are several VPN tunnels running between major sites and everything worked flawlessly. Then we added some new Windows Server 2003 boxes. Those boxes are as unstable as anything I've ever seen. They stop responding to RPC requests, which means they're useless. Originally, they were all domain controllers but I have since removed DC functionality from two of them and that didn't help a bit. All of the Win2k boxes are SP4 and the Win2k3 boxes are all SP1. I'm assuming it's an AD problem, but I could be way off-base here. Anyone have any clues on how I can get this resolved? I'm catching a lot of flak over these unstable boxes.
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post #2 of 7 Old 02-20-2006, 1:42 PM
 
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Re: Frustrating AD Problem

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Originally Posted by southpark460
Ok, I'm running up against a problem that's driving me insane. We have a medium-sized distributed network that originally contained just Windows 2000 Advanced servers. There are several VPN tunnels running between major sites and everything worked flawlessly. Then we added some new Windows Server 2003 boxes. Those boxes are as unstable as anything I've ever seen. They stop responding to RPC requests, which means they're useless. Originally, they were all domain controllers but I have since removed DC functionality from two of them and that didn't help a bit. All of the Win2k boxes are SP4 and the Win2k3 boxes are all SP1. I'm assuming it's an AD problem, but I could be way off-base here. Anyone have any clues on how I can get this resolved? I'm catching a lot of flak over these unstable boxes.
If they are remote to the other DCs, then you shouldn't be using RPC as the intersite transport. You need to set up bridgeheads at each location and use IP as the intersite transport. In reality the 2K boxes are killing the 2K3 stuff, as they have much more capability and are being stunted by running in 2K functional level. Did you run ADPrep when you added the 2k3 boxes? If you didn't and made them DCs then you may well have broken AD and it's time to read up on NTDSUTIL command lines . . .
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post #3 of 7 Old 02-20-2006, 1:45 PM
 
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Re: Frustrating AD Problem

Yeah, 2K and 2K3 DCs don't play well together. It can be done, but it is better off to keep all DCs on 2K until you can prep the domain for a full migration to 2K3 boxes.
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post #4 of 7 Old 02-20-2006, 1:50 PM Thread Starter
 
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Re: Frustrating AD Problem

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Originally Posted by abtech
If they are remote to the other DCs, then you shouldn't be using RPC as the intersite transport. You need to set up bridgeheads at each location and use IP as the intersite transport. In reality the 2K boxes are killing the 2K3 stuff, as they have much more capability and are being stunted by running in 2K functional level. Did you run ADPrep when you added the 2k3 boxes? If you didn't and made them DCs then you may well have broken AD and it's time to read up on NTDSUTIL command lines . . .
I ran dcpromo /domainprep and /forestprep. Is there more to it than that? I think they're running IP as the intersite transport. The RPC being broken is local. And two of the 2k3 boxes are local to the "master" DC box. May just be time to upgrade all the boxes to 2k3.

Check that... I'm thinking exchange setup with the /forestprep and /domainprep. Time to check on the adutil stuff...

Last edited by southpark460; 02-20-2006 at 1:59 PM.
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post #5 of 7 Old 02-20-2006, 2:17 PM Thread Starter
 
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Re: Frustrating AD Problem

Found that there's a compatibility issue with Exchange 2000 and Win2k3 schema. Seems they both use the same LDAP identifiers for a couple of keys. Ran the ldf file to update Exchange. We'll see if that has any effect. And the adprep /forestprep and /domainprep was run at the initial install.
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post #6 of 7 Old 02-20-2006, 2:24 PM
 
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Re: Frustrating AD Problem

Quote:
Originally Posted by southpark460
Found that there's a compatibility issue with Exchange 2000 and Win2k3 schema. Seems they both use the same LDAP identifiers for a couple of keys. Ran the ldf file to update Exchange. We'll see if that has any effect. And the adprep /forestprep and /domainprep was run at the initial install.
There is also some issues between 2K3 SP1 and all versions of Exchange 2K & 2K3 if they don't have the latest SP (Exchange that is)
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post #7 of 7 Old 02-20-2006, 2:37 PM Thread Starter
 
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Re: Frustrating AD Problem

Quote:
Originally Posted by abtech
There is also some issues between 2K3 SP1 and all versions of Exchange 2K & 2K3 if they don't have the latest SP (Exchange that is)
Yeah, knew about that one. All SP's are installed on the boxes! That's the frustrating part... Thanks for the help abtech. I owe you a beer...
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