[This is preliminary documentation and subject to change]

# Setting the Default Logon Domain

Users authenticated with Basic authentication must log on with a valid Windows user name and password. The user name usually includes:

- A Windows domain name.
- Account user name.

These identify a computer or group of computers administered by your Web server as a single entity. For example, a user who logged on by using an account called PhilSpencer on the Sales1 domain would log on as Sales1\PhilSpencer. However, you can configure your Web server to assume a default logon domain for Basic authentication, if users do not provide a domain name.

To set the default logon domain

1. In the IIS snap-in, select a Web site, directory, or file, and open its property sheets.
2. Select the appropriate Directory Security or File Security property sheet. Under Anonymous Access and Authentication Control, click Edit.
3. On the Authentication Method dialog box, select the Basic Authentication check box.

   Note Because Basic authentication sends passwords over the network unencrypted, a dialog box will ask you want to proceed. Click Yes to proceed.

4. Click Edit.
5. In the Basic Authentication Domain dialog box, either type in or browse to a new default logon domain. Click Use Default to use the your Web server's default domain name.

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