I am having this issue with many of my CentOS servers where after a reboot the network interface fails to come up automatically. This is a big problem for me since I need to drive to the datacenter every time when this happens as a result from a remote reboot. Then on the console eth0 is down and I have to ifup this manually. Is there a specific config file I can check to prevent this from happening in the future?
CentOS 6.5 not bringing up network interface automatically after reboot [ifup eth0]
centosinterfacenetworking
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Best Answer
Ensure that the file
/etc/sysconfig/network-scripts/ifcfg-eth0has the lineONBOOT="yes"See 9.2. Interface Configuration Files for details.