Centos7开机之后连不上网
ens33mtu 1500 qdisc noop state DOWN group default qlen 1000
运行 ip addr,发现ens33的网卡没有启动
解决步骤：
systemctl stop NetworkManager systemctl disable NetworkManager systemctl restart network.service
Centos7开机之后连不上网
ens33mtu 1500 qdisc noop state DOWN group default qlen 1000
运行 ip addr,发现ens33的网卡没有启动
解决步骤：
systemctl stop NetworkManager systemctl disable NetworkManager systemctl restart network.service
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