帮助中心 centos网卡变化无法联网恢复 rm /etc/udev/rules.d/70-persistent-net.rules有eth1的话,rm /etc/sysconfig/network-scripts/ifcfg-eth1vi /etc/sysconfig/network-scripts/ifcfg-eth0,只需要2行:DEVICE=eth0ONBOOT=yesreboot或者修改 /etc/udev/rules.d/70-persistent-net.rules mac地址为最新