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Windows Azure Programming Patterns for Start-ups by Riccardo Becker

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The Gatekeeper pattern

The Gatekeeper pattern is a design pattern that describes a way of brokering access to your storage. This is a typical security best practice and serves to minimize the attack surface of your roles. This is done by communicating over internal channels and only to other roles that are part of the pattern.

The Gatekeeper pattern takes two roles that play the gatekeeping game. There is one internet-facing web role that handles requests from users—in our scenario, requests to create a geotopic. The Gatekeeper is suspicious and does not trust any requests it receives. The Gatekeeper validates the input and runs in partial trust. When some hacker manages to successfully attack the web role, there is no sensitive data there. The ...

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