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Enable domain-wide authentication over an external trust

Updated: March 2, 2005

Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2

The domain-wide authentication setting permits unrestricted access by any users in the trusted domain to all available shared resources in the trusting domain. This is the default authentication setting for external trusts, and it is representative of the way authentications were routed — without restriction — over Windows 2000 Server trusts. For more information about the domain-wide authentication setting, see "Security Considerations for Trusts" in the Windows Server 2003 Technical Reference on the Microsoft Web site (http://go.microsoft.com/fwlink/?LinkId=35413).

You can enable domain-wide authentication over an external trust by using the New Trust Wizard in Active Directory Domains and Trusts or by using the Netdom command-line tool. For more information about how to use the Netdom command-line tool to configure selective authentication settings, see "Netdom.exe: Windows Domain Manager" in the Windows Server 2003 Technical Reference on the Microsoft Web site (http://go.microsoft.com/fwlink/?LinkId=41700).

Administrative credentials

To complete this procedure, you must be a member of the Domain Admins group or the Enterprise Admins group in Active Directory.

To enable domain-wide authentication over an external trust

Using the Windows interface

  1. Open Active Directory Domains and Trusts.

  2. In the console tree, right-click the domain that you want to administer, and then click Properties.

  3. On the Trusts tab, under Domains trusted by this domain (outgoing trusts), click the external trust that you want to administer, and then click Properties.

  4. On the Authentication tab, click Domain-wide authentication, and then click OK.

noteNote
Only the authentication settings for the outgoing trust are displayed when you click Properties and then click the Authentication tab in Active Directory Domains and Trusts. To view the correct authentication settings for the incoming side of a two-way, external trust, connect to a domain controller in the trusted domain, and then use Active Directory Domains and Trusts to view the authentication settings for the outgoing side of the same trust.

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