The network card eth0 is not activated when CentOS starts

Briefly

After installing the CentOS operating system, found no network at boot, and finally found that the system does not activate the network card when booting-because only in the active state of the network card to connect to networks, network communication.

• Briefly
• Activating the NIC Eth0

Activating the NIC Eth0

Execution of the "ifconfig" command found only the LO Nic, and there is no eth0.

Restart the network service, and found that the command prompt does not open the eth0 prompt.

Modify the NIC profile "Vi/etc/sysconfig/network-scripts/ifcfg-eth0" and Change "Onboot=no" to "onboot=yes" to indicate whether the network card is activated at system startup, save and exit.

Restart the Network service, the command prompt will appear to open eth0 information.

Re-enter "ifconfig" command check, OK, done.

The network card eth0 is not activated when CentOS starts