A. Windows 2000 allows the creation of a domain as a child of another domain. When two or more domains are joined in a parent-child relationship a domain tree is formed.
A child domain is created when executing the DCPROMO.EXE image and the parent domain must be accessible to create.
- Install Windows 2000 on the machine
- Ensure the machine has TCP/IP and DNS configured correctly
- Execute DCPROMO
- Click Next to continue the upgrade
- Select 'Domain controller for a new domain' and click Next
- Select 'Create a new child domain in an existing domain tree' and click Next
- Enter a Username, password and domain you will be using to join the domain tree. This account must reside in the parent domain a domain in the forest you are joining. Click Next
- Select the parent domain name by selecting Browse, e.g. savilltech.com. Enter the child domain (just the left most part), e.g. legal. The new complete name will be shown, e.g. legal.savilltech.com. Click Next
- If this is a new domain controller enter a NetBIOS name for backwards compatibility. By default it will be the left most 15 characters of the DNS domain name (up to the first .). If you are upgrading an existing DC then the NetBIOS name cannot be changed. Click Next
- Database and log locations will be shown. Click Next
- The System Volume area will be shown. Click Next
- An option to weaken security for 4.0 RAS servers. Select your option and click Next
- A summary will be shown. Click Next
- The new domain creation will begin
- Click Finish and reboot the machine
Instead of performing screenshots I've produced an animated GIF of the entire child domain creation (I was bored ;-) ). Click Refresh to make it start from the beginning, a gap of 2 seconds is shown between each screen.