Find Your MAC address in Linux (Gnome 2, Gnome 3, and Unity)
What is a MAC Address?
You can think of a MAC address as a serial number for your network card. It is a unique six two-digits hexadecimal numbers separated by colons. It is used for routing traffic on a network.
In this example I will show you how to find your MAC in Ubuntu with gnome 2 and Unity and Gnome 3 on Arch Linux. These steps should apply to just about any linux distribution. The only difference is how you launch the terminal.There are a few linux distros that require you to issue the commands as the root or super user.
Opening A Terminal Window
To open a Terminal window in Gnome 2 click on Applications > Accessories > Terminal
To open a terminal in Unity click on Ubuntu icon in the top left corner.
In the search box start typing terminal
Once you see the terminal icon you can click on it to launch the application
To launch a terminal in Gnome 3 slide your mouse to the upper left corner where activities is.
Search for terminal
Click on the Terminal Application
Finding Your MAC Address
In your terminal window type the following command:
The -a at the end of the command will show you all connections even if it is down.
Next to each connection you should see your MAC Address. In the image below I underlined the MAC Address as well as a few of the connections.
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