Yesterday, I have done some changes in
/etc/sysconfig/network-scripts/ifcfg-eht0 in centos 6. I have edited the value of
nm_controlled= "no" after
Now, I am unable to see the "eth0" after doing
ifconfig and lost internet and no ping .
nm_controlled="no" means that, that interface won't be controlled by the Network Manager. So now you may have to start the
service network start
Also to get the service running on boot give the
chkconfig network on
Also it would be better to edit the question and tell what you are actually trying to accomplish so that you may get the apt answers.