有一个代理服务器，它执行重要的授权，以很粗的粒度限制谁可以访问什么应用程序。
You have a proxy server that performs important authorization to limit who can access what applications at a coarse grained level.
用户浏览一个Ajax Web站点，加载ajax应用程序引擎，最好是从浏览器缓存中加载的，否则就从本地代理服务器加载。
Okay, users browse to an Ajax Web site and load the Ajax application engine, preferably from the browser's cache or, if not, from a local proxy server.
反向代理服务器会终止 SSL 连接，再重新打开另外一个到托管 HR 应用程序的 Web 应用服务器的 SSL 连接。
The reverse proxy server would terminate the SSL connection and reopen another SSL connection to the Web application server that hosted the HR application.
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