Block Trust between Child Domains Windows 2003

Posted on 2008-10-28
Last Modified: 2009-03-01
We currently have a single forest.  We have a top level domain and a child domain.  We acquired another company but do not want any resources shared between both child domains.  My understanding with Windows server 2003 Active Directory, all trusts are implied and Transitive.  Is there a way to force the two child domains to "never" be able to share resources or see each other's AD objects?  Is there a knowledgebase article to verify this is possible?  Child domains can see resources in the parent domain but should not see the other child.
Question by:Shenook
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
  • 2
LVL 30

Accepted Solution

LauraEHunterMVP earned 500 total points
ID: 22826873
Nope. Forests are the security boundary. If you want to isolate the new company's environment, leave them as a separate forest and create an external trust relationship between their forest and the root domain of your existing forest.
LVL 14

Expert Comment

ID: 22826982
If you have DOMAIN.LOCAL and you create CHILD1.DOMAIN.LOCAL and CHILD2.DOMAIN.LOCAL there is NOT a trust relationship between CHILD1.DOMAIN.LOCAL and CHILD2.DOMAIN.LOCAL unless you create it.
LVL 30

Expert Comment

ID: 22827056
If all 3 domains are in the same forest, then that statement is 100% false.  There is a two-way transitive trust relationship between all domains within a single AD forest.
LVL 14

Expert Comment

ID: 22827286
I stand corrected. Transitive trusts do extend to all domains within the same forest.

Featured Post

Free Webinar: AWS Backup & DR

Join our upcoming webinar with experts from AWS, CloudBerry Lab, and the Town of Edgartown IT to discuss best practices for simplifying online backup management and cutting costs.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This script can help you clean up your user profile database by comparing profiles to Active Directory users in a particular OU, and removing the profiles that don't match.
A project that enables an administrator to perform actions within a user session context not just at the time of login but any time later on day(s) or week(s) later.
This tutorial will walk an individual through the process of configuring their Windows Server 2012 domain controller to synchronize its time with a trusted, external resource. Use Google, Bing, or other preferred search engine to locate trusted NTP …
Microsoft Active Directory, the widely used IT infrastructure, is known for its high risk of credential theft. The best way to test your Active Directory’s vulnerabilities to pass-the-ticket, pass-the-hash, privilege escalation, and malware attacks …

696 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question