[CentOS] CentOS 7 Lost NIC

[Gordon Messmer]

On 12/11/2015 06:04 AM, Günther J. Niederwimmer wrote:
> I have 4 NIC on all my KVM Servers but the most time on a start (restart) I
> lost one NIC? It is not always the same, but this two are virtio NICs.
>
> with ifup eth0(1) the system say,I have no configured eth0 or eth1 file ?

You haven't given us much to go on.  The output of these commands might 
be helpful:

lspci
"ip addr show" or "ifconfig -a"
dmesg | grep -i eth
ls -l /etc/sysconfig/network/ifcfg-eth*
cat /etc/sysconfig/network/ifcfg-eth*