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Questions and Answers
What is a key feature of the authentication and authorization module?
How does the authentication and authorization module operate in Linux and containers?
What is the primary difference in the authentication flow when using a provider's SDK?
What happens during the post-authentication step for users signing in without a provider SDK?
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What requirement is there for configuring the authentication and authorization module?
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In what way does the authentication module ensure network traffic control?
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Which aspect of token store functionality is accurate?
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What is NOT supported by the authentication and authorization module?
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What does App Service add to the response when establishing an authenticated session?
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How does the client include authentication information in subsequent requests?
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What feature does the token store provide in App Service?
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Which method can be used for redirecting unauthenticated users in App Service?
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What is a benefit of enabling application logging in App Service?
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What role does the authentication token play in client-server communication?
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What handles the presentation of the authentication token in mobile apps using App Service?
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When is the token store immediately available in App Service?
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What is a key benefit of using built-in authentication in Azure App Service?
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Which identity provider is NOT listed as a default option for Azure App Service authentication?
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How does Azure App Service handle user identities when using federated identity providers?
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What is the purpose of the sign-in endpoint in Azure App Service for identity providers?
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Which authentication strategy allows for integration with third-party identity management solutions in Azure App Service?
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What development approach can you take if Azure App Service's built-in authentication does not meet your needs?
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What method does Azure App Service NOT utilize for achieving authentication and authorization?
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Which of the following options is an example of a sign-in endpoint for an identity provider in Azure App Service?
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Study Notes
Authentication Flow
- Authentication flow is the same for all providers, but differs depending on whether you're using a provider's SDK
- Authentication flow steps without Provider SDK:
- Client is redirected to /.auth/login/
- Authentication flow steps with Provider SDK:
- Client code signs in through the Provider SDK and receives an authentication token from the provider
- Client code posts token from the provider to /.auth/login/ for validation
Token Store
- App Service provides built-in token store, a repository of tokens associated with users of web apps, APIs, or native mobile apps
- This token store is automatically available through the app when authentication with any provider is enabled
Logging and Tracing
- Authentication and authorization traces are collected in your log files when application logging is enabled
Why Use Built-in Authentication
- You don't need to use App Services for authentication and authorization; many web frameworks include security features
- Built-in authentication simplifies authentication and authorization, saving time by providing ready-to-use functionality with federated identity providers
Identity Providers
- Several federated identity providers are available:
- Microsoft Identity Platform
- GitHub
- Any OpenID Connect provider
- App Service uses federated identity, a third-party identity provider, to manage user identities and authenticate user flows
Authorization Behavior
- App Service authorization behavior can be configured in Azure portal to determine what happens when an incoming request isn't authenticated
Authentication Module
- Authentication Module is a separate module that runs in a separate sandbox than application code.
- The module runs in a separate container from the application code for Linux and containers.
- It does not run in-process, and no direct integration with specific language frameworks is possible.
- It is configured with Azure Resource Manager settings or via a configuration file.
How it Works
- All HTTP requests pass through the authentication module before being handled by application code.
- The authentication module does the following for the application:
- Authenticates users
- Authorizes access based on user authentication status
- Provides appropriate user session data
- Sets appropriate cookies for authenticated users
App Service Token Generation
- App Service uses authentication cookies to authenticate users and authentication tokens to authorize users.
- App Service adds an authentication cookie to the response when a user authenticates with a Provider SDK.
- App Service returns its own authentication token to the client in the code.
- The client includes the authentication cookie in subsequent requests.
- The client includes the authentication token in the X-ZUMO-AUTH header for subsequent requests.
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Description
Explore the nuances of authentication flows in applications, including differences between using a provider's SDK and not. Understand token storage features provided by App Services and the importance of logging and tracing during authentication processes.
