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服务器 16.04：配置 Wi-Fi 连接（USB 适配器）

tag-icon • tag-icon 16.04 networking wireless internet ethernet
服务器 16.04：配置 Wi-Fi 连接（USB 适配器）

编辑：

sudo ifdown wlx000e0008833e && sudo ifup -v wlx000e0008833e：

Configuring interface wlx000e0008833e=wlx000e0008833e (inet)
/bin/run-parts --exit-on-error --verbose /etc/network/if-pre-up.d
run-parts: executing /etc/network/if-pre-up.d/ethtool
run-parts: executing /etc/network/if-pre-up.d/ifenslave
+ [ inet = meta ]
+ IF_BOND_SLAVES=
+ [  ]
+ [  ]
+ [ -z  ]
+ exit
run-parts: executing /etc/network/if-pre-up.d/vlan
/bin/ip addr add 192.168.0.50/255.255.255.0 broadcast 192.168.0.255       dev wlx000e0008833e label wlx000e0008833e
/bin/ip link set dev wlx000e0008833e   up
 /bin/ip route add default via 192.168.0.1  dev wlx000e0008833e onlink 
/bin/run-parts --exit-on-error --verbose /etc/network/if-up.d
run-parts: executing /etc/network/if-up.d/000resolvconf
run-parts: executing /etc/network/if-up.d/ethtool
run-parts: executing /etc/network/if-up.d/ifenslave
+ [ inet = meta ]
+ [  ]
run-parts: executing /etc/network/if-up.d/ip
run-parts: executing /etc/network/if-up.d/openssh-server
run-parts: executing /etc/network/if-up.d/upstart

dmesg | grep wlx：

[   16.181623] mt7601u 1-6:1.0 wlx000e0008833e: renamed from wlan0
[   16.309273] IPv6: ADDRCONF(NETDEV_UP): wlx000e0008833e: link is not ready
[  187.708914] IPv6: ADDRCONF(NETDEV_UP): wlx000e0008833e: link is not ready
[ 1333.308500] mt7601u 1-6:1.0 wlx000e0008833e: renamed from wlan0
[ 1333.502331] IPv6: ADDRCONF(NETDEV_UP): wlx000e0008833e: link is not ready
[ 1357.986859] IPv6: ADDRCONF(NETDEV_UP): wlx000e0008833e: link is not ready

情况：

我有一台装有 Ubuntu Server 16.04 操作系统的服务器。我需要使用 USB wifi 适配器将其连接到 wifi 网络，但在调试时遇到了一些问题。

当我插入 USB wifi 适配器并运行时，ifconfig -a我可以看到此信息（之前我做的设置)：

wlx000e0008833e Link encap:Ethernet  HWaddr 00:0e:00:08:83:3e  
                BROADCAST MULTICAST  MTU:1500  Metric:1
                RX packets:0 errors:0 dropped:0 overruns:0 frame:0
                TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
                collisions:0 txqueuelen:1000 
                RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

无线网络配置：

  • network name (ssid):开发者调制解调器
  • password:cHc0h6qZ3Hv8wscF
  • security:WPA/WPA2
  • IPv4 address:192.168.0.109

当我连接到我的 PC 时有关同一网络的信息 ( Ubuntu Desktop 16.04 AMD64)：

网络信息

有关我的调制解调器的信息：

在此处输入图片描述

我做的设置：

我将此脚本添加到/etc/networks/interfaces：

# The wifi network interface 
auto wlx000e0008833e
iface wlx000e0008833e inet static 
address 192.168.0.109 
netmask 255.255.255.0 
network 192.168.0.0 
broadcast 192.168.0.255
dns-nameservers 192.168.0.1 8.8.8.8
wpa-ssid developer-modem
wpa-psk cHc0h6qZ3Hv8wscF

问题：

当我 ping 192.168.0.109(我的调制解调器) 时，我得到了响应：

PING 192.168.0.109 (192.168.0.109) 56(84) bytes of data:
64 bytes from 192.168.0.109: icmp_seq=1 ttl=64 time=0.044 ms
64 bytes from 192.168.0.109: icmp_seq=2 ttl=64 time=0.047 ms
...
64 bytes from 192.168.0.109: icmp_seq=5 ttl=64 time=0.044 ms
--- 192.168.0.109 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 3997 ms

当我 ping 192.168.0.1(第一个 dns-nameserver) 时，收到错误响应：

PING 192.168.0.1 (192.168.0.1) 56(84) bytes of data:
From 192.168.0.109 icmp_seq=1 Destination Host Unreachable
From 192.168.0.109 icmp_seq=2 Destination Host Unreachable
...
From 192.168.0.109 icmp_seq=5 Destination Host Unreachable
--- 192.168.0.1 ping statistics ---
5 packets transmitted, 0 received, +3 errors, 100% packet loss, time 3017 ms

当我 ping 8.8.8.8(第二个 dns-nameserver) 时收到错误：

connect: Network is unreachable

当我 ping 任何其他地址（例如www.google.com）时，我收到错误：

ping: unknown host www.google.com

问题：

我不确定一切都设置好了，因为我只是做了更改/etc/network/interfaces（参见上面的更改），没有做其他更改。

如何解决这个问题？

感谢帮助

答案1

我建议您将服务器上的接口文件更改为：

auto lo
iface lo inet loopback

# The wifi network interface 
auto wlx000e0008833e
iface wlx000e0008833e inet static 
address 192.168.0.50
netmask 255.255.255.0 
gateway 192.168.0.1
dns-nameservers 192.168.0.1 8.8.8.8
wpa-ssid developer-modem
wpa-psk cHc0h6qZ3Hv8wscF

重启。

服务器是否已连接？检查：

ping -c3 192.168.0.1
ping -c3 www.ubuntu.com

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