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Making Changes Permanent - Surviving a Reboot NOTE: You may not be able do this if using a DSL modem (depending on modem vendor or ISP). To confirm your setting, you may prefer to execute " ip link ls eth0" or " ip addr ls eth0" instead of " ifconfig eth0". etc/init.d/network stop ip link set eth0 address 02:01:02:03:04:08 /etc/init.d/network start

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