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Hello...<br />
<br />
I have a small question here:<br />
<br />
does the external trust transitive to the child domains (sub tree) under the parent domain that i have created the trust on?<br />
<br />
could you help please ? &nbsp;
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Hello...

I have a small question here:

does the external trust transitive to the child domains (sub tree) under the parent domain that i have created the trust on?

could you help please ?  

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No, external trusts are not transitive or partialy transitive.
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No, external trusts are not transitive or partialy transitive.

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I've created a one way External trust between 2 domains that exist in seperate forests and it works fine. &nbsp;It so happens that the domains are the forest root domains in each forest.<br />
<br />
What is the advantage of a Forest Trust ? &nbsp;ie what does it give me that my external trust dosent now ?<br />
<br />

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I've created a one way External trust between 2 domains that exist in seperate forests and it works fine.  It so happens that the domains are the forest root domains in each forest.

What is the advantage of a Forest Trust ?  ie what does it give me that my external trust dosent now ?



Advantages of a Forest Trust over an external trust

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).

Windows Server 2003

Active Directory (AD) is a Microsoft brand for identity-related capabilities. In the on-premises world, Windows Server AD provides a set of identity capabilities and services, and is hugely popular (88% of Fortune 1000 and 95% of enterprises use AD). This topic includes all things Active Directory including DNS, Group Policy, DFS, troubleshooting, ADFS, and all other topics under the Microsoft AD and identity umbrella.