After restoring a snapshot to a new machine, you may encounter issues caused by the MAC address of the network adapter changing. Usually, when the network adapter changes the operating system will create a new network adapter for it. You'd typically see the network adapter on 'eth1' (or eth2 if you had private networking enabled).
CentOS
-
Log in to your server via the KVM in your control panel
-
Remove the contents of
/etc/udev/rules.d/70-persistent-net.rules -
Open
/etc/sysconfig/network-scripts/ifcfg-eth0, and change the contents to the following:DEVICE=eth0 TYPE=Ethernet ONBOOT=yes NM_CONTROLLED=yes BOOTPROTO=dhcp DNS1=8.8.8.8 NAME="System eth0" -
Reboot your server
-
Once you have network connectivity again, you can permanently fix these issues by installing the
cloud-initpackage from EPEL. This software will take care of adjusting your network adapter configuration whenever a snapshot is restored.
