Renaming ethernet interfaces (RHEL & variants)
I found a very helpful post by Jeff Schroeder on renaming ethernet interfaces on RHEL/CentOS, etc:
Jeff Schroeder January 15, 2009 at 1:50 pm
For those who don’t know, the Redhat/Fedora ifup/ifdown scripts that read the HWADDR variable are using the ip(8) command to set the names.
You can rename eth5 to eth0 like this:
ip link set down eth5
ip link set eth5 name eth0
Afterwards you’ll need to add an ip and up the interface with the ip(8) or ifconfig(8) commands.
This is very helpful when you clone a pre-configured virtual machine and don’t want the new VM to have it’s first ethernet interface named eth1. (instead of eth0 which is default)