Much like the IP address, the referrer is useful as a heuristic, but is no substitute for a real state tracking mechanism.

与 IP 地址一样，referrer 可以起辅助作用，但是不能替代真正的状态跟踪机制。

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Cisco wireless plant networks offer applications including those for worker mobility, voice over IP communications, tracking of personnel and assets, and video applications.

思科无线工厂网络提供的应用包括这些用于工人移动性、基于IP的语音通信、跟踪工作人员和资产以及视频应用。

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You can also search an area code, zip code, IP address and FedEx packing tracking number.

您也可以查找一个区号，邮政编码，ip地址和联邦快递包装追踪号码。

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Griffith's WikiScanner links publicly available data tracking the IP addresses of Wikipedia's anonymous editors with a registry of companies' IP addresses, allowing users to search for all the Wikipedia changes made from any company.

FORBES: The Perils of Wiki PR

This is a problem for the security community in general because NAT enables cyber attackers to hide behind shared IP addresses, preventing those tracking them from being able to pinpoint their identity.

FORBES: IPv6: The Time To Consider Making The Switch Is Now

As part of a broader strategy, Xsens now offers IP originally developed for professional (B2B) applications of 3D body motion tracking using wearable motion trackers for mass market application in the consumer electronics industry.

ENGADGET: Xsens teases wearable 3D body sensors that won't cost, will track an arm and a leg (video)