Microsoft press windows server 2008 active directory resource kit - part 2

miền tin tưởng miền , và miền tin tưởng miền , sau đó bắc có nghĩa là các miền cũng tin tưởng miền . Vì vậy, người sử dụng trong lĩnh vực có thể truy cập tài nguyên trong lĩnh vực và ngược lại. | Chapter 2 Active Directory Domain Services Components 53 domain trusts the domain and the domain trusts the domain then transitivity means that the domain also trusts the domain. Therefore users in the domain can access resources in the domain and vice versa. The transitive trusts also apply to the tree root trusts. The domain trusts the domain and the domain trusts the domain. Therefore the domain and the domain also share a transitive-trust relationship. Shortcut Trusts In addition to the automatic two-way transitive trusts that are created when a new child domain is created shortcut trusts can be created between domains in the forest. Shortcut trusts are used to optimize performance when accessing resources between domains that are connected through transitive trusts. A shortcut trust is desirable when there is frequent resource access between domains that are remotely connected through the domain tree or forest. For example the trusts at A. Datum could be configured as illustrated as Figure 2-10. ADatum Forest Parent-child trust Forest Trust WoodgroveBank Forest Shortcut trust Figure 2-10 Trusts in the ADatum forest. If a security group in the domain has a frequent need to access a shared resource in the domain and with only transitive trusts established between the domains users in the domain must be referred to a domain controller in every domain in the tree between them and the domain that contains the resource. This is not efficient if the need is frequent. A shortcut trust is a direct trust that will efficiently enable users in the domain to be referred to a domain controller in the

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