Firewall Proxy Pattern

The proxy works behind the scenes by checking outgoing requests and incoming answers for compliance with internal security and access policies. It denies access when a request does not comply with such policies, or when its resources are exhausted.

Because all communication flows through the firewall proxy, it constitutes a potential bottleneck and provides an ideal place for optimizations such as caching. It also provides an ideal location for additional tasks like logging and accounting.

See: Proxy

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