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network interface

Check what NICs are Available

Confirm installed NICs: 
nmcli d

Modify IP Settings: 

Modify interface settings: 

Select edit a connection

then select the NIC that you want to use, and select <Edit>

and then modify the interface as needed

Restart Services 

and restart the network service
service network restart

Confirm Services

Confirm the interface is good with ifconfig or ip addr (ifconfig is not preloaded with centos7 minimal)
ip addr