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Create a Two-Way, Realm Trust

Updated: January 9, 2009

Applies To: Windows Server 2008, Windows Server 2008 R2

A two-way, realm trust allows users in your Windows Server 2008 domain or Windows Server 2003 domain (the domain that you are logged on to at the time that you run the New Trust Wizard) and users in a specified Kerberos realm to access resources in either the domain or the Kerberos realm. For example, if users in the sales.wingtiptoys.com domain need access to resources in the PRODUCTS.TAILSPINTOYS.com Kerberos realm, and the realm users also need access to resources in the domain, you can use this procedure to establish a two-way trust relationship that allows users in both the realm and the domain to have access to resources in both places.

noteNote
Kerberos realm names require uppercase characters.

You can create this realm trust by using the New Trust Wizard in the Active Directory Domains and Trusts snap-in or by using the Netdom command-line tool. For more information about how to use the Netdom command-line tool to create a realm trust, see Netdom Overview (http://go.microsoft.com/fwlink/?LinkId=111537).

Membership in Domain Admins or Enterprise Admins in Active Directory Domain Services (AD DS), or equivalent, is the minimum required to complete this procedure. Review details about using the appropriate accounts and group memberships at Local and Domain Default Groups (http://go.microsoft.com/fwlink/?LinkId=83477).

  1. Open Active Directory Domains and Trusts.

  2. In the console tree, right-click the domain node for the domain for which you want to establish a realm trust, and then click Properties.

  3. On the Trusts tab, click New Trust, and then click Next.

  4. On the Trust Name page, type the Domain Name System (DNS) name of the Kerberos realm, and then click Next.

  5. On the Trust Type page, click Realm trust, and then click Next.

  6. On the Transitivity of Trust page, do one of the following:

    • To form a trust relationship with the domain and the specified realm only, click Nontransitive, and then click Next.

    • To form a trust relationship with the domain and the specified realm and all trusted realms, click Transitive, and then click Next.

  7. On the Direction of Trust page, click Two-way, and then click Next.

    For more information about the selections that are available on the Direction of Trust page, see "Direction of Trust" in Appendix: New Trust Wizard Pages.

  8. On the Trust Password page, type the trust password twice, and then click Next.

  9. On the Trust Selections Complete page, review the results, and then click Next.

  10. On the Completing the New Trust Wizard page, click Finish.

noteNote
For this trust to function, the administrator of the Kerberos realm must complete the trust, using his or her administrative credentials and the exact same trust password that was used during this procedure.

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