[This is preliminary documentation and subject to change]

# Web Site Authentication

You can require users to provide a valid Microsoft Windows user-account name and password before they access any information on your server. This identification process is called authentication. Authentication, like many of the features in IIS, can be set at the Web site, directory, or file level. IIS provides the following authentication methods to control access to the content on your web server:

### WWW Methods

- Anonymous Authentication
- Basic Authentication
- Digest Authentication
- Advanced Digest Authentication
- Integrated Windows Authentication
- Certificates
- Passport Authentication

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