Enabling eth0 on boot on CentOS 7

By default after a new install of CentOS 7, the eth0 interface is not enabled at boot. To enable, edit /etc/sysconfig/network-scripts/ifcfg-eth0

Find this line at the bottom:

ONBOOT=no

and change to yes. Reboot, now eth0 should be active.

More info here.

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