Unable to access the Internet after centos is imported under virtualbox

???? From the "management" menu of virtualbox, select "Export Virtual Computer" to save a backup. Then, select "Import Virtual Computer" from the "manage" menu, but cannot access the Internet. Solution:

1. modify the configuration file

VI/etc/udev/rules. d/70-persistent-net.rules

Comment out eth0 settings

Change eth1 to eth0

?

Ii. Change the MAC address of the NIC

VI/etc/sysconfig/network-scripts/ifcfg-eth0

Change the NIC address to the MAC address in virtual box.

Restart: reboot