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mar 11 10:18:18 localhost systemd: starting lsb: bring up/down networking... mar 11 10:18:19 localhost network: 正在打开环回接口： [ 确定 ] mar 11 10:18:19 localhost networkmanager[9366]: <info> [1552270699.1055] audit: op="connection-activate" uuid="fd005f04-41ac-4401-bd27-decd3492dd84" name="ens33" result="fail" reason="no suitable device found for this connection." mar 11 10:18:19 localhost network: 正在打开接口 ens33： 错误：激活连接失败：no suitable device found for this connection. mar 11 10:18:19 localhost network: [失败] mar 11 10:18:19 localhost network: rtnetlink answers: file exists mar 11 10:18:19 localhost network: rtnetlink answers: file exists mar 11 10:18:19 localhost network: rtnetlink answers: file exists mar 11 10:18:19 localhost network: rtnetlink answers: file exists mar 11 10:18:19 localhost network: rtnetlink answers: file exists mar 11 10:18:19 localhost network: rtnetlink answers: file exists mar 11 10:18:19 localhost network: rtnetlink answers: file exists mar 11 10:18:19 localhost network: rtnetlink answers: file exists mar 11 10:18:19 localhost network: rtnetlink answers: file exists mar 11 10:18:19 localhost systemd: network.service: control process exited, code=exited status=1 mar 11 10:18:19 localhost systemd: failed to start lsb: bring up/down networking. mar 11 10:18:19 localhost systemd: unit network.service entered failed state. mar 11 10:18:19 localhost systemd: network.service failed.
解决办法：
然后把 /etc/sysconfig/network-scripts/ifcfg-ens33（macaddr） 或者 /sys/class/net/ens33/address
#ifconfig eth0 down /*禁掉eth0网卡，这里以eth0网卡为例*/ #ifconfig eth0 hw ether 00:aa:bb:cc:dd:ee /*修改eth0网卡的mac地址*/ #ifconfig eth0 up /*重新启动eth0网卡*/
2. mac 没问题，关闭系统的 networkmanager ， 注意大小写
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