First, check the MAC address of the source virtual machine, and you will find that the cloned virtual machine has the same MAC address as the source virtual machine, and restarting the cloned virtual machine network fails.
(1) Edit the network card device: (comment out the line of eth0 and modify the line of eth1 to eth0)
(2) Delete the MAC address of the configuration information in the eth0 file, restart the network, and if it still fails, restart the virtual machine