Users authenticated with Basic authentication must log on with a valid Windows user name and password. The user name usually includes:
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 domainNote Because Basic authentication sends passwords over the network unencrypted, a dialog box will ask you want to proceed. Click OK to proceed.