解决：
[root@mina0 hadoop]# systemctl stop NetworkManager
[root@mina0 hadoop]# systemctl disable NetworkManager
##############
然后：重启网卡即可：
[root@mina0 hadoop]# systemctl restart network
[root@mina0 hadoop]# ifconfig
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解决：
[root@mina0 hadoop]# systemctl stop NetworkManager
[root@mina0 hadoop]# systemctl disable NetworkManager
##############
然后：重启网卡即可：
[root@mina0 hadoop]# systemctl restart network
[root@mina0 hadoop]# ifconfig
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