Microsoft KB Archive/814587

= How to create a single domain tree with two domains in Windows Server 2003 =

Article ID: 814587

Article Last Modified on 10/30/2006

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APPLIES TO


 * Microsoft Windows Server 2003, Standard Edition (32-bit x86)
 * Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)

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For a Microsoft Windows 2000 version of this article, click the following article number to view the article in the Microsoft Knowledge Base:

317696 How to create a single domain tree with two domains in Windows 2000

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INTRODUCTION
This article describes how to create a continuous namespace that spans two domains by adding a child domain. Every Domain Name System (DNS) name of a child domain in a hierarchy contains the name of the parent domain.



MORE INFORMATION
Before you start, make sure that your Microsoft Windows Server 2003-based computer is a member of the parent domain. To create a continuous namespace that spans two domains, follow these steps on the member server:
 * 1) Click Start, click Run, type dcpromo in the Open box, and then click OK.
 * 2) On the first page of the Active Directory Installation Wizard, click Next.
 * 3) Review the list of Windows operating systems that can no longer function in a Windows Server 2003 domain, and then click Next.
 * 4) On the Domain Controller Type page, accept the default Domain controller for a new domain selection. Click Next.
 * 5) On the Create New Domain page, click Child domain in an existing domain tree, and then click Next.
 * 6) On the Network Credentials page, type the following information, where   represents a user account that is a member of the Domain Administrators group and   is the name of your parent domain:

User Name:

Password:

Domain:


 * 1) Click Next to continue, and then on the Child Domain Installation page, type the fully-qualified name of the parent domain in the Parent Domain box. In the Child Domain box, type the Netbios name of the fully qualified name of the child domain, and then click Next.
 * 2) On the NetBIOS Domain Name page, accept the suggested domain NetBIOS name, and then click Next.
 * 3) On the Database and Log Folders page, accept the default settings, and then click Next.
 * 4) On the Shared System Volume page, accept the default settings, and then click Next.
 * 5) On the DNS Registration Diagnostics page, review the diagnostic results, and then click Next.
 * 6) On the Permissions page, click the permission level that applies to your organization, and then click Next.
 * 7) On the Directory Services Restore Mode Administrator Password page, type a password in the Restore Mode Password and the Confirm Password boxes, and then click Next.
 * 8) On the Summary page, click Next to complete the Active Directory configuration. This process may take several minutes.
 * 9) On the final page, click Finish to complete the configuration.
 * 10) Click Restart Now for the changes to take effect immediately.
 * 11) Log on again as an administrator, click Start, point to Programs, point to Administrative Tools, and then click Active Directory Domains and Trusts to start the Active Directory Domains and Trusts snap-in.
 * 12) In the console tree, verify that the subdomain is listed as a child domain under the parent domain. All Active Directory domains are identified by a DNS name that includes the complete name of the parent domain.
 * 13) Right-click the child domain object, and then click Manage. This action starts the Active Directory Users and Computers snap-in for the child domain.
 * 14) Expand the domain tree, and then click Domain Controllers.
 * 15) In the Details pane, right-click the server object, click Properties, and then verify that the DNS name is correct.

