Hi Joe,

 

I had to digest this a bit…

 

Ø       I think you are simply asking the disjoint namespace question

 

That’s right.

 

Ø       to allow VWRITE to service principal name and dns hostname

 

Ok, I found that permission. But I’m still confused; to who should I assign that permission? Are you thinking of allowing the branche office admins to set the SPN and DNS hostname? They have FC on the computer objects, so that should not be a problem, right?

 

I was thinking of just creating an AD integrated zone, giving the appropriate admin group the permissions on the DNS zone, and let the system take care of the rest. If the branch office admins need to set SPN’s explicitly I will overshoot my purpose. I’m pretty sure that very few of them can do that. Hey, I barely know what I’m talking about.

 

My alternative instruction (should the SPN be a problem) for them would be to let the workstations register in their own dedicated zone, but to let the servers register in the AD zone. The problems are mostly with the workstations anyway. Think about imaging software that recreates (not: resets) computer accounts.

 

--

    Regards, Willem

 


From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of joe
Sent: Monday, May 10, 2004 9:18 PM
To: [EMAIL PROTECTED]
Subject: RE: [ActiveDir] DNS Subzone and SPN - potential problem?

 

I think you are simply asking the disjoint namespace question and if that is the case, default MS stuff, you will be fine. Simply set the appropriate permissions on the computer objects (more likely set it on the highest level OU or container you can) to allow VWRITE to service principal name and dns hostname. Now if you have a delegated join process where you don't give full control of the computer object to someone andyou are adding Win2K3 machines you will need to give WP to DNS Host Name Attributes (this may show up as WP on Validated Write DnsHostName if you use DSACLS though because of a duped GUID MS used for the rights GUID. This gets you around having to specify allowed suffixes.

 

Now what can break? Most anything that doesn't understand disjoint namespaces. Right off the top of my head that seems to be smaller vendors though I have seen issues with EMC NAS devices as well. They simply don't register the correct hostname and spn though you can usually manually correct that. I would just the same test any important apps that you have or use though just to make sure, for example any monitoring software or software update software or auditing software or specific LOB software.

 

Overall I have good experience with disjoint namespace and actually prefer it because of the way the records get broken up in a generally geographically based manner. Much cleaner than throwing everything for say Asia Pacific into one DNS Domain of AsiaPac.company.com. If you can look at a machine and see xxx.philipines.company.com you have more info right off than seeing xxx.asiapac.company.com.

 

The main issue has been the frustration with vendors who didn't test their product with a disjoint namespace.

 

   joe

 

 

 


From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Willem Kasdorp
Sent: Monday, May 10, 2004 2:55 PM
To: [EMAIL PROTECTED]
Subject: [ActiveDir] DNS Subzone and SPN - potential problem?

I’m working in a branch office deployment where the AD is centrally managed, and all offices have a high level of autonomy. In MS terms: central does the service management, branches do data management.

 

I would like the branches to manage their own DNS A records. In order to do that I am thinking of giving each a delegated subdomain of the main AD (DNS-)domain and giving them the appropriate permissions. Now I’m wondering if I’m going to have a problem with Kerberos. I tried to look it up but what I found on Technet is less then clear.

 

Workstations don’t usually offer services, so I’m not too worried about that. But what happens when servers are going to register (through their primary DNS Suffix) in a subdomain? Will they automatically register the correct SPN, will other computers be able to find that, and is there a difference between file/print sharing and more specialized services?

 

Do any of you have good/bad experiences to share?

 

--

    Regards, Willem

 

 

 

 

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