1、vi /etc/udev/rules.d/70-persistent-net.rule
删掉eth0网卡，将eht1网卡更名为eth0
2、vi /etc/sysconfig/network-scripts/ifcfg-eth0
删掉网卡的物理地址HWADDR和UUID,更改 IPADDR 为新的IP
3、reboot
