# OpenAM Administration Guide
2.2. Configuring Authentication Modules

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### 2.2.22. Hints For the Windows NT Authentication Module

The Windows NT module lets OpenAM authenticate against a Microsoft Windows NT server.

This module requires that you install a Samba client in a `bin` directory under the OpenAM configuration directory such as `$HOME/openam/openam/bin`.

ssoadm service name: `iPlanetAMAuthNTService`

Authentication Domain

  Specify the Windows domain name to which users belong.

  ssoadm attribute: `iplanet-am-auth-nt-domain`

Authentication Host

  Specify the NetBIOS name of the Windows NT host to which to authenticate users.

  ssoadm attribute: `iplanet-am-auth-nt-host`

Samba Configuration File Name

  Specify the full path to the Samba configuration file.

  ssoadm attribute: `iplanet-am-auth-samba-config-file-name`

Authentication Level

  Sets the authentication level used to indicate the level of security associated with the module. The value can range from 0 to any positive integer.

  ssoadm attribute: `iplanet-am-auth-nt-auth-level`