There are a lot of reasons you might want to manually set your MAC address for your network card. I won’t ask you what your reason is.
To change this setting, we’ll need to edit the /etc/network/interfaces file. You can choose to use a different editor if you’d like.
sudo gedit /etc/network/interfaces
You should see the line for your network interface, which is usually eth0. If you have dhcp enabled, it will look like this:
auto eth0
iface eth0 inet dhcp
Just add another line below it to make it look something like this:
auto eth0
iface eth0 inet dhcp
hwaddress ether 01:02:03:04:05:06
Obviously you would want to choose something else for the MAC address, but it needs to be in the same format.
sudo /etc/init.d/networking restart
You will need to restart networking or reboot to take effect.
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