How to find the MAC address in Mac OS X

Every physical interface of a computer has an associated MAC address which is a unique identifier. A MAC address is different from an IP address and is used for network access control and monitoring of network connectivity, such as applying MAC filtering on your Internet router to only allow specific machines to connect to the internet via your router. However, in order to do any of this you need to know the computers MAC address. This article explains how to find the MAC address of your MAC OS X machine.

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