Computer’s MAC address is your exact address on a LAN. You want to change your MAC address for different basis, including better privacy. You can replace your MAC address in Linux using a few commands.

• Open a Terminal window and type following command
sudo ifconfig eth0.
This command shows Ethernet controller hardware information.

• Type "sudo ifconfig eth0 down,t" and hit Enter. Using this command you can shuts down your Ethernet controller for configuration.

• Change your MAC address by entering "sudo ifconfig eth0 hw ether AA:MA:CAD:RE:SS" into the terminal, changeing the letters with a valid MAC address.

• Type "sudo ifconfig eth0 up" using this command you can turn back on your Ethernet controller.