MAC Address fiddling

Changing the MAC address of your Linux workstation is an incredibly easy task (in this example, from :a9 to :aa)...

1. Determine the existing MAC address of the interface to be changed:

   $ sudo ifconfig wlan0
   wlan0     Link encap:Ethernet  HWaddr 00:24:2c:e3:c8:a9




2. Bring the interface down:

   $ sudo ifconfig wlan0 down



3. Set the new MAC address:

   $ sudo ifconfig wlan0 hw ether 00:24:2c:e3:c8:aa



4. Bring the interface back online:

   $ sudo ifconfig wlan0 up



5. Verify the change took:

   $ sudo ifconfig wlan0 | grep HWaddr
   wlan0     Link encap:Ethernet  HWaddr 00:24:2c:e3:c8:aa

Voila.