Each virtual machine must have a unique MAC address, and failure to provide a unique MAC address to each clone can cause network problems.

每个虚拟机都必须具有唯一的mac地址，如果不能向每个克隆提供唯一的mac地址，则会导致网络问题。

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A MAC address is a unique character string, and since it identifies a specific physical device — one individual NIC — the MAC address, by convention, never changes for the life of the NIC.

一个MAC地址是一个独一无二的字符串。由于它标识一个独特的物理设备——一个唯一的网卡——MAC地址，按照约定，在网卡中将永不会改变。

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This feature prevents hackers from changing the MAC address of their machine or from trying to map more than one MAC address to their machine.

这个功能会阻止黑客改变他机器的MAC地址或试图映射多个MAC地址到他的机器上。

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We tried it then and it couldn't have been easier, logging in while connected to your home network flips the switch based on IP address or MAC address, and then it worked at home or on the go, no password necessary.

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In this case, the cyber identity of this file would be a full set of its cyber coordinates in the IP subspace: the computer IP address, its MAC address, a Port number associated with the particular application, and the file name would constitute the full set of cyber coordinates, singularly identifying a cyber object (our file) in cyberspace.

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The backup email address on my Gmail account is that same .mac email address.

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