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Enable CentOS startup and automatic networking

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Enable CentOS startup and automatic networking

You can modify the boot configuration as long:

Vi/etc/sysconfig/network-scripts/ifcfg-eth0


File, change ONBOOT = "no" to yes, and you do not need to connect manually next time.

DEVICE = "eth0": Interface
HWADDR = "00: 00: 00: 00: 00: 00": hardware address
NM_CONTROLLED refers to the network manger parameter, and yes is effective in real time. After modification, no need to restart the NIC to take effect immediately.
ONBOOT = "yes": Indicates whether to activate the NIC when the system starts. Only the NIC in the active status can connect to the network for network communication.

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