虚拟机开启 ifconfig 没有ens33网卡，无法上网，同时 图形化模式 没有有线连接选项，重启NetworkManager没有用
connection ‘ens33‘ is not available on device ens33 because device is strictly unmanaged
- 查看托管状态
$ nmcli
docker0: disconnected
"docker0"
bridge, 02:42:74:81:0C:62, sw, mtu 1500
ens33: unmanaged
"Intel 82545EM"
ethernet (e1000), 00:0C:29:C7:13:F3, hw, mtu 1500
lo: unmanaged
"lo"
loopback (unknown), 00:00:00:00:00:00, sw, mtu 65536
Use "nmcli device show" to get complete information about known devices and
"nmcli connection show" to get an overview on active connection profiles.
Consult nmcli(1) and nmcli-examples(7) manual pages for complete usage details.
- 开启托管
$ nmcli n on
$ nmcli
docker0: disconnected
"docker0"
bridge, 02:42:74:81:0C:62, sw, mtu 1500
ens33: unmanaged
"Intel 82545EM"
ethernet (e1000), 00:0C:29:C7:13:F3, hw, mtu 1500
lo: unmanaged
"lo"
loopback (unknown), 00:00:00:00:00:00, sw, mtu 65536
Use "nmcli device show" to get complete information about known devices and
"nmcli connection show" to get an overview on active connection profiles.
Consult nmcli(1) and nmcli-examples(7) manual pages for complete usage details.
- reference