Changing Your MAC Address/Linux Jump to navigation Jump to search Under GNU/Linux, the MAC address of a network interface card (NIC) can be changed by following the procedures below. NOTE: MAC addresses used within this article are provided for example only. Substitute according to your requirements. NOTE: Commands below MUST be executed with root privileges (e.g. prepended with "sudo "), in order for things to work! /etc/init.d/networking stop ifconfig eth0 hw ether 02:01:02:03:04:08 /etc/init.d/networking start Execute " ifconfig eth0 " to confirm. The above should work on Debian , Ubuntu , and similar distributions. Alternatively, under RHEL / Fedora and possibly other GNU/Linux distributions (incl. CentOS and Scientific Linux ), to disable and restart networking, one must stop and start /etc/init.d/network , instead of /etc/init.d/networking . If you have iproute2 utilities installed, you may prefer to use...