HTTP之Proxy

HTTP之Proxy

  1、Proxy vs Gateway

  Strictly speaking, proxies connect two or more applications that speak the same pro- tocol, while gateways hook up two or more parties that speak different protocols. 

  HTTP之Proxy

 2、Proxy auto-configuration (PAC)

  You provide a URI to a JavaScript proxy auto-configuration (PAC) file; the client fetches the JavaScript file and runs it to decide if it should use a proxy and, if so, which proxy server to use. 

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