KVM Guest Network
Network Tools
Get the good old ifconfig command back.
apt-get install net-tools
Network Interfaces
The new network naming scheme does not fit me. I rather like the good old ethX names. The new naming scheme makes a lot of considerations about the hardware before giving it a name, which sometimes results in very long and weird interfaces names. This especially happens when using USB network devices.
The first thing to do is to tell the kernel that we want the old naming scheme. Edit /etc/default/grub.
GRUB_CMDLINE_LINUX="net.ifnames=0 biosdevname=0"
Make sure to update the grub configuration.
update-grub
Since we are changing a kernel parameter this calls for a reboot.