These companies built software that spreads data across the globe, automated the command and control of tens of thousands of servers, and refined data-center designs to be more energy-efficient.

这些公司构建可在全球分布数据、自动执行命令和控制数万服务器的软件，完善数据中心的设计使之更具能效。

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He said he does not know why the command-and-control servers were shut down.

他说，他不知道为什么指挥和控制服务器被关闭。

youdao

In the case of Koobface, the command and control servers that orchestrated these attacks ultimately gave them away.

FORBES: Social Media Brings a New Wave of Threats, Part 2

Sourcefire also provides realtime feeds of known malicious hosts and command and control servers so beaconing can be blocked.

FORBES: Security Intelligence Enters Mainstream

Their sensors record network traffic and use a feed of data about threat sources associated with command and control servers.

FORBES: Beaconing detection heats up