When you run SQL Server on a computer located behind Proxy Server, SQL Server is protected by the packet filtering features of Proxy Server.
在代理服务器后面的计算机上运行的SQL服务器，可受到代理服务器的包过滤功能的保护。
Since the clients in the environment are only aware of the front-end proxy server, the server cluster behind the proxy server remains hidden and a unified directory view is presented to the client.
环境中的客户机只知道前端的代理服务器，代理服务器背后的服务器集群对于客户机是隐藏的，客户机会看到统一的目录视图。
Blue lines: Blue lined behind the proxy server show the replication topology for cn=aixdata and cn=ibmpolocies.
蓝线：代理服务器后面的蓝线显示 cn=aixdata 和 cn=ibmpolocies 的复制拓扑。
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