Linux网卡异常：解决Device eth0 does not seem to be present
一：故障现象二：解决方法
(1)打开70-persistent-net.rules,记录下eth1网卡的mac地址:
vi /etc/udev/rules.d/70-persistent-net.rules
# PCI device 0x1022:0x2000 (pcnet32)SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:50:56:b9:22:fa", ATTR{type}=="1", KERNEL=="eth*", NAME="eth1"
记录下，eth1网卡的mac地址00:50:56:b9:22:fa
（2).打开ifcfg-eth0,更改DEVICE名和MAC地址：
vi /etc/sysconfig/network-scripts/ifcfg-eth0
将 DEVICE="eth0"改成DEVICE="eth1",将 HWADDR="00:0c:29:8f:89:97" 改成上面的mac地址HWADDR="00:0c:29:50:bd:17"
(3).重启网络
service network restart
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