If I want to alter my Mac address for Kali Linux? What is the first job I need to do? code example

Example 1: code to change the mac address kali linux

ifconfig eth0(whatever the interface name is ) down
ifocnfig eth0 hw ether 00:11:22:33:44:55
ifconfig eht0 up

Example 2: how to change mac address kali linux

$ sudo ifconfig [interface] down
$ sudo ifconfig [interface] hw ether [new MAC Address (needs to start with 00)]
$ sudo ifconfig [interface] up