solution RHEL6 no ifcfg eth
solution RHEL6 no ifcfg eth if the ifconfig shows the eth0/1/2/3 etc but there are no ifcfg-eth0/1/2/3 under the /etc/sysconfig/network-scripts/ then this indicates the network gui is managing the interface files. you shall login as root su - use init 5 on top right corner select the network manager rename the interface from Auto ethX to ethX ( where X is number ) apply the settings ( At this point you shall see the ifcfg-eth files under the network-scripts ) execute rm /etc/udev/rules.d/70-persistent-net.rules reboot the machine ( reboot ) download file now