Proxy servers make it quite possible that the IP address visible to the server is only marginally useful, however.
但是，代理服务器很可能让服务器看到的IP地址没有意义。
In the HTTP proxy address field, enter the host name or IP address of a reverse proxy or application server to forward authenticated traffic.
在HTTP Proxy address字段中，输入作为认证的传输的重定向目的地的反向代理或应用程序服务器的主机名或IP地址。
If a message goes through a relay or proxy, the IP address and port number of the respective relay or proxy is the one attached to the message by this property.
如果消息经过中继或代理，则相应中继或代理的IP地址和端口号是此属性附加到消息中的IP地址和端口号。
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