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修改配置文件

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root@NanoPi-Duo2:~# vim /etc/network/interfaces

auto  eth0
iface eth0 inet dhcp

auto  wlan0
iface wlan0 inet dhcp
wpa-ssid xxxxxxxx
wpa-psk  XXXXXXXX

NetworkManager 多管闲事

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root@NanoPi-Duo2:~# systemctl  stop     NetworkManager.service
root@NanoPi-Duo2:~# systemctl  disable  NetworkManager.service
root@NanoPi-Duo2:~# systemctl  restart  networking.service

查看连接状态

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root@NanoPi-Duo2:~# ifconfig eth0
eth0      Link encap:Ethernet  HWaddr 02:81:ff:f8:25:c6
          inet addr:192.168.88.108  Bcast:192.168.88.255  Mask:255.255.255.0
          inet6 addr: fe80::a22d:30c:76ab:6b04/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:5582 errors:0 dropped:0 overruns:0 frame:0
          TX packets:4363 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:580703 (580.7 KB)  TX bytes:567387 (567.3 KB)
          Interrupt:41

root@NanoPi-Duo2:~#
root@NanoPi-Duo2:~#

root@NanoPi-Duo2:~# ifconfig wlan0
wlan0     Link encap:Ethernet  HWaddr c0:84:7d:a0:2f:dc
          inet addr:192.168.88.110  Bcast:192.168.88.255  Mask:255.255.255.0
          inet6 addr: fe80::c284:7dff:fea0:2fdc/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:370 errors:0 dropped:0 overruns:0 frame:0
          TX packets:456 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:42480 (42.4 KB)  TX bytes:62057 (62.0 KB)

root@NanoPi-Duo2:~#
root@NanoPi-Duo2:~#

root@NanoPi-Duo2:~# route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         192.168.88.3    0.0.0.0         UG    0      0        0 wlan0
0.0.0.0         192.168.88.3    0.0.0.0         UG    100    0        0 eth0
192.168.0.0     0.0.0.0         255.255.255.0   U     0      0        0 eth0
192.168.88.0    0.0.0.0         255.255.255.0   U     0      0        0 wlan0
192.168.88.0    0.0.0.0         255.255.255.0   U     100    0        0 eth0
192.168.173.0   0.0.0.0         255.255.255.0   U     0      0        0 VPN
root@NanoPi-Duo2:~#