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Afraid you cannot do that.<br />
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Each Domain must be installed on a seperate DC, a single DC cannot host more than one AD Domain.<br />
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Chris
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Afraid you cannot do that.

Each Domain must be installed on a seperate DC, a single DC cannot host more than one AD Domain.

Chris

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I'm new at this so forgive the simple question - I realize that a single domain controller can only host a single domain, but I thought that you could install multiple domain controllers on a single physical server, with each domain controller hosting a different domain. I thought that on a mainframe server, you could run all of the domains for the company. Is this not true?<br />
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thanks
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I'm new at this so forgive the simple question - I realize that a single domain controller can only host a single domain, but I thought that you could install multiple domain controllers on a single physical server, with each domain controller hosting a different domain. I thought that on a mainframe server, you could run all of the domains for the company. Is this not true?

thanks

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I am doing a clean install of Windows Server 2003 on a new server, consolidating several small, older servers. I want to install multiple domains on the same physical server. I installed ActiveDirectory and created the forest root domain, but am having trouble creating child domains. When I run 'dcpromo', it says that this machine is already a domain controller and the only task it will let me perform is to remove the domain controller.
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I am doing a clean install of Windows Server 2003 on a new server, consolidating several small, older servers. I want to install multiple domains on the same physical server. I installed ActiveDirectory and created the forest root domain, but am having trouble creating child domains. When I run 'dcpromo', it says that this machine is already a domain controller and the only task it will let me perform is to remove the domain controller.

Multiple domains on single server?

Windows Server 2003 was based on Windows XP and was released in four editions: Web, Standard, Enterprise and Datacenter. It also had derivative versions for clusters, storage and Microsoft’s Small Business Server. Important upgrades included integrating Internet Information Services (IIS), improvements to Active Directory (AD) and Group Policy (GP), and the migration to Automated System Recovery (ASR).