The /etc/sysconfig/network file should contain the following line:
The /etc/sysconfig/network-scripts/ifcfg-eth0 file should contain the following lines:
A configuration file is needed for each device to be configured to use DHCP.
yes — Modify /etc/resolv.conf with information from the server. If using DHCP, then yes is the default.
no — Do not modify /etc/resolv.conf.
yes — Non-root users are allowed to control this device.
no — Non-root users are not allowed to control this device.