修改/etc/sysconfig/networkhtml
/etc/sysconfig/network
NETWORKING=yes
修改/etc/sysconfig/network-scripts/ifcfg-eth0ide
/etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0 ONBOOT=yes BOOTPROTO=dhcp
參考 https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/3/html/System_Administration_Guide/s1-dhcp-configuring-client.htmlui