> # Windows NT Realm: Configuration

> Configuration Options Related Tasks Related Topics

> The Windows NT security realm uses account information defined for a Windows NT domain to authenticate users and groups. Use this page to define a name for the realm and the computer on which the Windows NT domain is running.

> When using the Windows NT security realm, you must configure a Caching realm. When configuring the Caching realm, select the Windows NT security realm as the Basic realm. The Basic attribute defines the association between the Caching realm and the Windows NT security realm.

> To use the Windows NT security realm, you need to use Compatibility security. The use of the Windows NT security realm is deprecated in this release of WebLogic Server.

> #### Configuration Options

> Name | Description
> --- | ---
> Name | The user-specified name of this MBean instance. This name is included as one of the key properties in the MBean's `javax.management.ObjectName`: `Name=user-specified-name` Changes take effect after you redeploy the module or restart the server.
> Primary Domain | The host name of the Windows NT Primary Domain Controller where users and groups are defined for the domain. If entering multiple sets of host and port numbers, delimit them with commas. If the local computer(where WebLogic Server executes) is the Primary Controller, you set the attribute to period ("."). Changes take effect after you redeploy the module or restart the server.
> Realm Class Name | Gets the realmClassName attribute of the BasicRealmMBean object Changes take effect after you redeploy the module or restart the server.

> Related Tasks

> - Configure Windows NT security realms
> - Configure Caching realms
> - Set up Compatibility security

> Related Topics

> - Using Compatibility Security