CentOS Linux解决Device eth0 does not seem to be present

CentOS Linux解决Device eth0 does not seem to be present

今天早上打开xshell链接虚拟机,突然链接不上。然后进入虚拟机执行 ifconfig 或者 ip addr list 命令发现eth0 不见。然后执行重启网卡命令发现

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解决办法:   首先,打开/etc/udev/rules.d/70-persistent-net.rules内容如下面例子所示:

  #vi/etc/udev/rules.d/70-persistent-net.rules
  #Thisfilewasautomaticallygeneratedbythe/lib/udev/write_net_rules
  #program,runbythepersistent-net-generator.rulesrulesfile.
  #
  #Youcanmodifyit,aslongasyoukeepeachruleonasingle
  #line,andchangeonlythevalueoftheNAME=key.
  #PCIdevice0x1022:0x2000(pcnet32)
  SUBSYstem=="net",ACTION=="add",DRIVERS=="?*",ATTR{address}=="00:0c:29:8f:89:9
  7",ATTR{type}=="1",KERNEL=="eth*",NAME="eth0"
  #PCIdevice0x1022:0x2000(pcnet32)
  SUBSYstem=="net",ATTR{address}=="00:0c:29:50:bd:1
  7",NAME="eth1"

  记录下,eth1网卡的mac地址00:0c:29:50:bd:17   接下来,打开/etc/sysconfig/network-scripts/ifcfg-eth0   

#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"
  最后,重启网络
  #servicenetworkrestart
  或者
  #/etc/init.d/networkrestart

 然后瞬间就满血复活,xshell链接也正常了。

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