Child domain is not resolving the name of parent domain.

2012-06-18

Question

_{Monday, June 18, 2012 8:18 PM}

I have two domain, 1 is parent domain and 2nd is child domain but while i am trying to nslookup from child domain to parent domain name its showing error that can't find gloabal.com: Non-existent domain.
C:\nslookup
Default Server: ddc22.child.global.com
Address: 10.250.200.102

> global.com
Server: ddc22.tsd.global.com
Address: 10.250.200.102

*** ddc22.tsd.global.com can't find global.com: Non-existent domain

All replies (6)

_{Monday, June 18, 2012 11:53 PM ✅Answered}

How is your DNS designed to handle parent-child domains?

Is there a forwarder from the child domain DNS to the parent domain DNS?

What DNS servers are the child machines using?

Please read the following to understand how to design DNS to work in a multi-domain forest:

DNS Design Options in a Multi-Domain Forest - How to create a Parent-Child DNS Delegation, and How to Configure DNS to create a new Tree in the Forest
Published by Ace Fekay, MCT, MVP DS on Oct 1, 2010 at 12:22 PM
http://msmvps.com/blogs/acefekay/archive/2010/10/01/dns-parent-child-dns-delegation-how-to-create-a-dns-delegation.aspx

Also, to better help you, please post the following:

Unedited ipconfig /all from the global.com domain DC/DNS
Unedited ipconfig /all from a global.com domain sample workstation
Unedited ipconfig /all from a child.global.com domain sample workstation
Unedited ipconfig /all from a global.com domain DC/DNS server
Is there a fowarder from the child to the root domain?

Ace Fekay
MVP, MCT, MCITP EA, MCTS Windows 2008/R2, Exchange 2007 & Exchange 2010, Exchange 2010 EA, MCSE & MCSA 2003/2000, MCSA Messaging 2003
Microsoft Certified Trainer
Microsoft MVP - Directory Services
Complete List of Technical Blogs: http://www.delawarecountycomputerconsulting.com/technicalblogs.php

This post is provided AS-IS with no warranties or guarantees and confers no rights.

_{Tuesday, June 19, 2012 8:05 AM ✅Answered}

Hi,

Thanks for posting here.

It seems this DNS server(10.250.200.102) is not hosing the parent DNS zone “global.com” . In this case, we can either replicating the parent DNS zone to this DNS server or forwarding any request of parent domain name “global.com” by setting conditional forwarder on it in order to get the response form proper DNS server.

Using Query Forwarding

http://technet.microsoft.com/en-us/library/cc816653(WS.10).aspx

And on client side, please also insert the both parent and child domain name into the search suffix list :

Configuring Query Settings

http://technet.microsoft.com/en-us/library/cc959339.aspx

Thanks.

Tiger Li

TechNet Community Support

_{Tuesday, June 19, 2012 8:25 AM ✅Answered}

Hi,

Please also refer to the suggestions below:

Optional Configuration Considerations

NOTE: The following options depend on how your organization wants to setup its DNS name resolution and namespace, and using proxy servers or firewalls can influence this decision as well.

On the TCP/IP properties of the child domain server, change the TCP/IP address of the DNS server to point to its own TCP/IP address.
Consider integrating DNS with the Active Directory on the child DNS server.
Add the parent (root) DNS server as a forwarder on the child DNS server.

How To Create a Child Domain in Active Directory and Delegate the DNS Namespace to the Child Domain

http://support.microsoft.com/kb/255248/

Thanks.

Tiger Li

TechNet Community Support

_{Monday, June 18, 2012 8:03 PM}

i have two domain, 1 is parent domain and 2nd is child domain but while i am trying to nslookup from child domain to parent domain name its showing error that can't find gloabal.com: Non-existent domain.

C:\nslookup

Default Server: ddc22.child.global.com
Address: 10.250.200.102

> global.com
Server: ddc22.tsd.global.com
Address: 10.250.200.102

*** ddc22.tsd.global.com can't find global.com: Non-existent domain

_{Tuesday, June 19, 2012 1:36 AM}

Hello,

The issue is based on a DNS design. Please see my response to your identical post in the NIS Forum:
http://social.technet.microsoft.com/Forums/en-US/winserverNIS/thread/c33e3f4b-638a-4b06-a32d-56b4744f937d

Maybe Awinish or one of the other moderators can merge them?

This post is provided AS-IS with no warranties or guarantees and confers no rights.

_{Thursday, June 21, 2012 12:01 AM}

Thanks to you all........

I'll check and update you .......

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Child domain is not resolving the name of parent domain.

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