我在 Ubuntu 论坛上发布了有关此问题的帖子，但是它停滞了并且问题尚未解决，所以我尝试利用社区来寻求帮助。
我有一个完美运行的 16.04 双启动安装。需要使用一些 Windows 软件来工作，我用 W10 替换了单独分区上长期未使用的 W7 安装。两者现在都已启动并运行。除了...
DNS 现已损坏。
我运行了 wireless-info 脚本，其输出如下：
########## wireless info START ##########
Report from: 28 Mar 2020 13:57 CDT -0500
Booted last: 28 Mar 2020 00:00 CDT -0500
Script from: 22 Oct 2018 03:34 UTC +0000
##### release ###########################
Distributor ID: Ubuntu
Description: Ubuntu 16.04.6 LTS
Release: 16.04
Codename: xenial
##### kernel ############################
Linux 4.4.0-176-generic #206-Ubuntu SMP Fri Feb 28 05:02:04 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
Parameters: ro, quiet, splash, vt.handoff=7
##### desktop ###########################
Ubuntu
##### lspci #############################
02:00.0 Network controller [0280]: Intel Corporation Centrino Advanced-N 6230 [Rainbow Peak] [8086:0091] (rev 34)
Subsystem: Intel Corporation Centrino Advanced-N 6230 AGN [8086:5201]
Kernel driver in use: iwlwifi
03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 06)
Subsystem: Samsung Electronics Co Ltd RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [144d:c0b3]
Kernel driver in use: r8169
##### lsusb #############################
Bus 002 Device 004: ID 8086:0189 Intel Corp.
Bus 002 Device 003: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 2232:1018 Silicon Motion
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
##### PCMCIA card info ##################
##### rfkill ############################
0: samsung-wlan: Wireless LAN
Soft blocked: no
Hard blocked: no
1: samsung-bluetooth: Bluetooth
Soft blocked: no
Hard blocked: no
2: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
3: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
##### secure boot #######################
'mokutil' is not installed (package "mokutil").
##### lsmod #############################
iwldvm 233472 0
mac80211 737280 1 iwldvm
iwlwifi 200704 1 iwldvm
cfg80211 565248 3 iwlwifi,mac80211,iwldvm
wmi 20480 0
##### interfaces ########################
[/etc/network/interfaces]
auto lo
iface lo inet loopback
##### ifconfig ##########################
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
link/loopback <MAC address> brd <MAC address>
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp3s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN group default qlen 1000
link/ether <MAC 'enp3s0' [IF1]> brd <MAC address>
3: wlp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether <MAC 'wlp2s0' [IF2]> brd <MAC address>
inet 192.168.1.235/24 brd 192.168.1.255 scope global dynamic wlp2s0
valid_lft 85270sec preferred_lft 85270sec
inet6 fe80::2e0c:1e32:b88a:82e3/64 scope link
valid_lft forever preferred_lft forever
##### iwconfig ##########################
lo no wireless extensions.
enp3s0 no wireless extensions.
wlp2s0 IEEE 802.11abgn ESSID:"wewantutopia1"
Mode:Managed Frequency:5.24 GHz Access Point: <MAC 'wewantutopia1' [AC1]>
Bit Rate=216 Mb/s Tx-Power=15 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:on
Link Quality=66/70 Signal level=-44 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:218 Missed beacon:0
##### route #############################
default via 192.168.1.1 dev wlp2s0 proto static metric 600
169.254.0.0/16 dev wlp2s0 scope link metric 1000
192.168.1.0/24 dev wlp2s0 proto kernel scope link src 192.168.1.235 metric 600
##### resolv.conf #######################
[644 root '/etc/resolv.conf']
nameserver 127.0.0.53
options edns0
##### network managers ##################
Installed:
NetworkManager
Running:
root 1113 1 0 13:02 ? 00:00:01 /usr/sbin/NetworkManager --no-daemon
##### NetworkManager info ###############
GENERAL.DEVICE: wlp2s0
GENERAL.TYPE: wifi
GENERAL.NM-TYPE: NMDeviceWifi
GENERAL.VENDOR: Intel Corporation
GENERAL.PRODUCT: Centrino Advanced-N 6230 [Rainbow Peak] (Centrino Advanced-N 6230 AGN)
GENERAL.DRIVER: iwlwifi
GENERAL.DRIVER-VERSION: 4.4.0-176-generic
GENERAL.FIRMWARE-VERSION: 18.168.6.1
GENERAL.HWADDR: <MAC 'wlp2s0' [IF2]>
GENERAL.MTU: 0
GENERAL.STATE: 100 (connected)
GENERAL.REASON: 0 (No reason given)
GENERAL.UDI: /sys/devices/pci0000:00/0000:00:1c.0/0000:02:00.0/net/wlp2s0
GENERAL.IP-IFACE: wlp2s0
GENERAL.IS-SOFTWARE: no
GENERAL.NM-MANAGED: yes
GENERAL.AUTOCONNECT: yes
GENERAL.FIRMWARE-MISSING: no
GENERAL.NM-PLUGIN-MISSING: no
GENERAL.PHYS-PORT-ID: --
GENERAL.CONNECTION: wewantutopia1
GENERAL.CON-UUID: 8a1c8ae7-8747-4b1f-b680-46adf64c8d5d
GENERAL.CON-PATH: /org/freedesktop/NetworkManager/ActiveConnection/2
GENERAL.METERED: no (guessed)
CAPABILITIES.CARRIER-DETECT: no
CAPABILITIES.SPEED: 135 Mb/s
CAPABILITIES.IS-SOFTWARE: no
WIFI-PROPERTIES.WEP: yes
WIFI-PROPERTIES.WPA: yes
WIFI-PROPERTIES.WPA2: yes
WIFI-PROPERTIES.TKIP: yes
WIFI-PROPERTIES.CCMP: yes
WIFI-PROPERTIES.AP: yes
WIFI-PROPERTIES.ADHOC: yes
WIFI-PROPERTIES.2GHZ: yes
WIFI-PROPERTIES.5GHZ: yes
CONNECTIONS.AVAILABLE-CONNECTION-PATHS: /org/freedesktop/NetworkManager/Settings/{2,11,15,0}
CONNECTIONS.AVAILABLE-CONNECTIONS[1]: 56e522fc-943c-410a-9c77-2dad2a474725 | Chromecast7090
CONNECTIONS.AVAILABLE-CONNECTIONS[2]: 483741ba-f753-4ae2-96ac-e1b61001e052 | wewantutopia
CONNECTIONS.AVAILABLE-CONNECTIONS[3]: ce43afef-d62c-4b30-8a92-4bf6e0762a2d | wewantutopia2
CONNECTIONS.AVAILABLE-CONNECTIONS[4]: 8a1c8ae7-8747-4b1f-b680-46adf64c8d5d | wewantutopia1
IP4.ADDRESS[1]: 192.168.1.235/24
IP4.GATEWAY: 192.168.1.1
IP4.ROUTE[1]: dst = 169.254.0.0/16, nh = 0.0.0.0, mt = 1000
IP4.DNS[1]: 192.168.1.1
DHCP4.OPTION[1]: requested_subnet_mask = 1
DHCP4.OPTION[2]: requested_rfc3442_classless_static_routes = 1
DHCP4.OPTION[3]: subnet_mask = 255.255.255.0
DHCP4.OPTION[4]: domain_name_servers = 192.168.1.1
DHCP4.OPTION[5]: ip_address = 192.168.1.235
DHCP4.OPTION[6]: requested_static_routes = 1
DHCP4.OPTION[7]: dhcp_server_identifier = 192.168.1.1
DHCP4.OPTION[8]: requested_time_offset = 1
DHCP4.OPTION[9]: broadcast_address = 192.168.1.255
DHCP4.OPTION[10]: requested_interface_mtu = 1
DHCP4.OPTION[11]: dhcp_rebinding_time = 75600
DHCP4.OPTION[12]: requested_domain_name_servers = 1
DHCP4.OPTION[13]: dhcp_message_type = 5
DHCP4.OPTION[14]: requested_broadcast_address = 1
DHCP4.OPTION[15]: routers = 192.168.1.1
DHCP4.OPTION[16]: wpad = a
DHCP4.OPTION[17]: dhcp_renewal_time = 43200
DHCP4.OPTION[18]: requested_domain_name = 1
DHCP4.OPTION[19]: requested_routers = 1
DHCP4.OPTION[20]: expiry = 1585507129
DHCP4.OPTION[21]: requested_wpad = 1
DHCP4.OPTION[22]: host_name = dk
DHCP4.OPTION[23]: requested_netbios_scope = 1
DHCP4.OPTION[24]: requested_ms_classless_static_routes = 1
DHCP4.OPTION[25]: requested_netbios_name_servers = 1
DHCP4.OPTION[26]: network_number = 192.168.1.0
DHCP4.OPTION[27]: requested_domain_search = 1
DHCP4.OPTION[28]: requested_ntp_servers = 1
DHCP4.OPTION[29]: next_server = 192.168.1.1
DHCP4.OPTION[30]: requested_host_name = 1
DHCP4.OPTION[31]: dhcp_lease_time = 86400
IP6.ADDRESS[1]: fe80::2e0c:1e32:b88a:82e3/64
IP6.GATEWAY:
GENERAL.DEVICE: <MAC address>
GENERAL.TYPE: bt
GENERAL.NM-TYPE: NMDeviceBt
GENERAL.VENDOR:
GENERAL.PRODUCT:
GENERAL.DRIVER: bluez
GENERAL.DRIVER-VERSION:
GENERAL.FIRMWARE-VERSION:
GENERAL.HWADDR: <MAC address>
GENERAL.MTU: 0
GENERAL.STATE: 30 (disconnected)
GENERAL.REASON: 0 (No reason given)
GENERAL.UDI: /org/bluez/hci0/dev_F8_95_C7_17_A5_D2
GENERAL.IP-IFACE:
GENERAL.IS-SOFTWARE: no
GENERAL.NM-MANAGED: yes
GENERAL.AUTOCONNECT: yes
GENERAL.FIRMWARE-MISSING: no
GENERAL.NM-PLUGIN-MISSING: no
GENERAL.PHYS-PORT-ID: --
GENERAL.CONNECTION: --
GENERAL.CON-UUID: --
GENERAL.CON-PATH: --
GENERAL.METERED: unknown
CAPABILITIES.CARRIER-DETECT: no
CAPABILITIES.SPEED: unknown
CAPABILITIES.IS-SOFTWARE: no
BLUETOOTH.CAPABILITIES: NAP
CONNECTIONS.AVAILABLE-CONNECTION-PATHS: /org/freedesktop/NetworkManager/Settings/{24}
CONNECTIONS.AVAILABLE-CONNECTIONS[1]: 79b25038-b298-4091-b989-734fac4921a3 | Dave's LG G4 Network
GENERAL.DEVICE: enp3s0
GENERAL.TYPE: ethernet
GENERAL.NM-TYPE: NMDeviceEthernet
GENERAL.VENDOR: Realtek Semiconductor Co., Ltd.
GENERAL.PRODUCT: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
GENERAL.DRIVER: r8169
GENERAL.DRIVER-VERSION: 2.3LK-NAPI
GENERAL.FIRMWARE-VERSION:
GENERAL.HWADDR: <MAC 'enp3s0' [IF1]>
GENERAL.MTU: 1500
GENERAL.STATE: 20 (unavailable)
GENERAL.REASON: 40 (Carrier/link changed)
GENERAL.UDI: /sys/devices/pci0000:00/0000:00:1c.3/0000:03:00.0/net/enp3s0
GENERAL.IP-IFACE:
GENERAL.IS-SOFTWARE: no
GENERAL.NM-MANAGED: yes
GENERAL.AUTOCONNECT: yes
GENERAL.FIRMWARE-MISSING: no
GENERAL.NM-PLUGIN-MISSING: no
GENERAL.PHYS-PORT-ID: --
GENERAL.CONNECTION: --
GENERAL.CON-UUID: --
GENERAL.CON-PATH: --
GENERAL.METERED: unknown
CAPABILITIES.CARRIER-DETECT: yes
CAPABILITIES.SPEED: 1000 Mb/s
CAPABILITIES.IS-SOFTWARE: no
WIRED-PROPERTIES.CARRIER: off
CONNECTIONS.AVAILABLE-CONNECTION-PATHS:
SSID BSSID MODE CHAN FREQ RATE SIGNAL BARS SECURITY ACTIVE *
wewantutopia <MAC 'wewantutopia' [AC2]> Infra 9 2452 MHz 54 Mbit/s 97 ▂▄▆█ WPA2 no
wewantutopia2 <MAC 'wewantutopia2' [AC5]> Infra 161 5805 MHz 54 Mbit/s 77 ▂▄▆_ WPA2 no
wewantutopia1 <MAC 'wewantutopia1' [AC1]> Infra 48 5240 MHz 54 Mbit/s 76 ▂▄▆_ WPA2 yes *
Chromecast7090 <MAC '' [AC4]> Infra 9 2452 MHz 54 Mbit/s 74 ▂▄▆_ -- no
ATT8N58wnt <MAC 'ATT8N58wnt' [AC3]> Infra 11 2462 MHz 54 Mbit/s 37 ▂▄__ WPA2 no
##### NetworkManager.state ##############
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
##### NetworkManager config #############
[[/etc/NetworkManager/conf.d/default-wifi-powersave-on.conf]]
[connection]
wifi.powersave = 3
[[/etc/NetworkManager/NetworkManager.conf]]
[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq
[ifupdown]
managed=false
##### NetworkManager profiles ###########
[[/etc/NetworkManager/system-connections/wewantutopia1]] (600 root)
[connection] id=wewantutopia1 | type=wifi | permissions=user:david:;
[wifi] mac-address=<MAC 'wlp2s0' [IF2]> | mac-address-blacklist= | ssid=wewantutopia1
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/wewantutopia2]] (600 root)
[connection] id=wewantutopia2 | type=wifi | permissions=user:david:;
[wifi] mac-address=<MAC 'wlp2s0' [IF2]> | mac-address-blacklist= | ssid=wewantutopia2
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/wewantutopia]] (600 root)
[connection] id=wewantutopia | type=wifi | permissions=user:david:;
[wifi] mac-address=<MAC 'wlp2s0' [IF2]> | mac-address-blacklist= | ssid=wewantutopia
[ipv4] method=auto
[ipv6] method=auto
##### Netplan config ####################
##### iw reg get ########################
Region: America/Chicago (based on set time zone)
country US: DFS-FCC
(2402 - 2472 @ 40), (N/A, 30), (N/A)
(5170 - 5250 @ 80), (N/A, 23), (N/A)
(5250 - 5330 @ 80), (N/A, 23), (0 ms), DFS
(5490 - 5730 @ 160), (N/A, 23), (0 ms), DFS
(5735 - 5835 @ 80), (N/A, 30), (N/A)
(57240 - 63720 @ 2160), (N/A, 40), (N/A)
##### iwlist channels ###################
lo no frequency information.
enp3s0 no frequency information.
wlp2s0 32 channels in total; available frequencies :
Channel 01 : 2.412 GHz
Channel 02 : 2.417 GHz
Channel 03 : 2.422 GHz
Channel 04 : 2.427 GHz
Channel 05 : 2.432 GHz
Channel 06 : 2.437 GHz
Channel 07 : 2.442 GHz
Channel 08 : 2.447 GHz
Channel 09 : 2.452 GHz
Channel 10 : 2.457 GHz
Channel 11 : 2.462 GHz
Channel 36 : 5.18 GHz
Channel 40 : 5.2 GHz
Channel 44 : 5.22 GHz
Channel 48 : 5.24 GHz
Channel 52 : 5.26 GHz
Channel 56 : 5.28 GHz
Channel 60 : 5.3 GHz
Channel 64 : 5.32 GHz
Channel 100 : 5.5 GHz
Channel 104 : 5.52 GHz
Channel 108 : 5.54 GHz
Channel 112 : 5.56 GHz
Channel 116 : 5.58 GHz
Channel 120 : 5.6 GHz
Channel 124 : 5.62 GHz
Channel 128 : 5.64 GHz
Channel 132 : 5.66 GHz
Channel 136 : 5.68 GHz
Channel 140 : 5.7 GHz
Channel 149 : 5.745 GHz
Channel 153 : 5.765 GHz
Current Frequency:5.24 GHz (Channel 48)
##### iwlist scan #######################
lo Interface doesn't support scanning.
enp3s0 Interface doesn't support scanning.
Channel occupancy:
2 APs on Frequency:2.452 GHz (Channel 9)
1 APs on Frequency:2.462 GHz (Channel 11)
1 APs on Frequency:5.24 GHz (Channel 48)
1 APs on Frequency:5.805 GHz
wlp2s0 Scan completed :
Cell 01 - Address: <MAC 'wewantutopia1' [AC1]>
Channel:48
Frequency:5.24 GHz (Channel 48)
Quality=66/70 Signal level=-44 dBm
Encryption key:on
ESSID:"wewantutopia1"
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=0000007f6cf5a37d
Extra: Last beacon: 300ms ago
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
Cell 02 - Address: <MAC 'wewantutopia' [AC2]>
Channel:9
Frequency:2.452 GHz (Channel 9)
Quality=70/70 Signal level=-36 dBm
Encryption key:on
ESSID:"wewantutopia"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=0000007f6cc7ed08
Extra: Last beacon: 3156ms ago
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
Cell 05 - Address: <MAC 'wewantutopia2' [AC5]>
Channel:161
Frequency:5.805 GHz
Quality=56/70 Signal level=-54 dBm
Encryption key:on
ESSID:"wewantutopia2"
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=0000007f6cbd63fb
Extra: Last beacon: 136ms ago
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
##### module infos ######################
[iwldvm]
filename: /lib/modules/4.4.0-176-generic/kernel/drivers/net/wireless/iwlwifi/dvm/iwldvm.ko
license: GPL
author: Copyright(c) 2003- 2015 Intel Corporation <[email protected]>
description: Intel(R) Wireless WiFi Link AGN driver for Linux
srcversion: 58FF645F7DE3DD061B613D8
depends: mac80211,iwlwifi,cfg80211
retpoline: Y
intree: Y
vermagic: 4.4.0-176-generic SMP mod_unload modversions
parm: force_cam:force continuously aware mode (no power saving at all) (bool)
[mac80211]
filename: /lib/modules/4.4.0-176-generic/kernel/net/mac80211/mac80211.ko
license: GPL
description: IEEE 802.11 subsystem
srcversion: CD58AC927E26FDA6A73F559
depends: cfg80211
retpoline: Y
intree: Y
vermagic: 4.4.0-176-generic SMP mod_unload modversions
parm: minstrel_vht_only:Use only VHT rates when VHT is supported by sta. (bool)
parm: max_nullfunc_tries:Maximum nullfunc tx tries before disconnecting (reason 4). (int)
parm: max_probe_tries:Maximum probe tries before disconnecting (reason 4). (int)
parm: beacon_loss_count:Number of beacon intervals before we decide beacon was lost. (int)
parm: probe_wait_ms:Maximum time(ms) to wait for probe response before disconnecting (reason 4). (int)
parm: ieee80211_default_rc_algo:Default rate control algorithm for mac80211 to use (charp)
[iwlwifi]
filename: /lib/modules/4.4.0-176-generic/kernel/drivers/net/wireless/iwlwifi/iwlwifi.ko
license: GPL
author: Copyright(c) 2003- 2015 Intel Corporation <[email protected]>
description: Intel(R) Wireless WiFi driver for Linux
firmware: iwlwifi-100-5.ucode
firmware: iwlwifi-1000-5.ucode
firmware: iwlwifi-135-6.ucode
firmware: iwlwifi-105-6.ucode
firmware: iwlwifi-2030-6.ucode
firmware: iwlwifi-2000-6.ucode
firmware: iwlwifi-5150-2.ucode
firmware: iwlwifi-5000-5.ucode
firmware: iwlwifi-6000g2b-6.ucode
firmware: iwlwifi-6000g2a-5.ucode
firmware: iwlwifi-6050-5.ucode
firmware: iwlwifi-6000-4.ucode
firmware: iwlwifi-7265D-13.ucode
firmware: iwlwifi-7265-13.ucode
firmware: iwlwifi-3160-13.ucode
firmware: iwlwifi-7260-13.ucode
firmware: iwlwifi-8000-13.ucode
srcversion: CB5AC244E1344F14798FC7E
depends: cfg80211
retpoline: Y
intree: Y
vermagic: 4.4.0-176-generic SMP mod_unload modversions
parm: swcrypto:using crypto in software (default 0 [hardware]) (int)
parm: 11n_disable:disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX (uint)
parm: amsdu_size_8K:enable 8K amsdu size (default 0) (int)
parm: fw_restart:restart firmware in case of error (default true) (bool)
parm: antenna_coupling:specify antenna coupling in dB (default: 0 dB) (int)
parm: nvm_file:NVM file name (charp)
parm: d0i3_disable:disable d0i3 functionality (default: Y) (bool)
parm: lar_disable:disable LAR functionality (default: N) (bool)
parm: uapsd_disable:disable U-APSD functionality (default: Y) (bool)
parm: bt_coex_active:enable wifi/bt co-exist (default: enable) (bool)
parm: led_mode:0=system default, 1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0) (int)
parm: power_save:enable WiFi power management (default: disable) (bool)
parm: power_level:default power save level (range from 1 - 5, default: 1) (int)
parm: fw_monitor:firmware monitor - to debug FW (default: false - needs lots of memory) (bool)
[cfg80211]
filename: /lib/modules/4.4.0-176-generic/kernel/net/wireless/cfg80211.ko
description: wireless configuration support
license: GPL
author: Johannes Berg
srcversion: 649B1B8B37AC928F18974F4
depends:
retpoline: Y
intree: Y
vermagic: 4.4.0-176-generic SMP mod_unload modversions
parm: bss_entries_limit:limit to number of scan BSS entries (per wiphy, default 1000) (int)
parm: ieee80211_regdom:IEEE 802.11 regulatory domain code (charp)
parm: cfg80211_disable_40mhz_24ghz:Disable 40MHz support in the 2.4GHz band (bool)
##### module parameters #################
[iwldvm]
force_cam: Y
[mac80211]
beacon_loss_count: 7
ieee80211_default_rc_algo: minstrel_ht
max_nullfunc_tries: 2
max_probe_tries: 5
minstrel_vht_only: Y
probe_wait_ms: 500
[iwlwifi]
11n_disable: 0
amsdu_size_8K: 0
antenna_coupling: 0
bt_coex_active: Y
d0i3_disable: Y
fw_monitor: N
fw_restart: Y
lar_disable: N
led_mode: 0
nvm_file: (null)
power_level: 0
power_save: N
swcrypto: 0
uapsd_disable: Y
[cfg80211]
bss_entries_limit: 1000
cfg80211_disable_40mhz_24ghz: N
ieee80211_regdom: 00
##### /etc/modules ######################
coretemp
coretemp
coretemp
##### modprobe options ##################
[/etc/modprobe.d/amd64-microcode-blacklist.conf]
blacklist microcode
[/etc/modprobe.d/blacklist-ath_pci.conf]
blacklist ath_pci
[/etc/modprobe.d/blacklist.conf]
blacklist evbug
blacklist usbmouse
blacklist usbkbd
blacklist eepro100
blacklist de4x5
blacklist eth1394
blacklist snd_intel8x0m
blacklist snd_aw2
blacklist i2c_i801
blacklist prism54
blacklist bcm43xx
blacklist garmin_gps
blacklist asus_acpi
blacklist snd_pcsp
blacklist pcspkr
blacklist amd76x_edac
[/etc/modprobe.d/blacklist-rare-network.conf]
alias net-pf-3 off
alias net-pf-6 off
alias net-pf-9 off
alias net-pf-11 off
alias net-pf-12 off
alias net-pf-19 off
alias net-pf-21 off
alias net-pf-36 off
[/etc/modprobe.d/intel-microcode-blacklist.conf]
blacklist microcode
[/etc/modprobe.d/intel_powerclamp.conf]
install intel_powerclamp /bin/true
[/etc/modprobe.d/iwlwifi.conf]
remove iwlwifi \
(/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \
&& /sbin/modprobe -r mac80211
[/etc/modprobe.d/mlx4.conf]
softdep mlx4_core post: mlx4_en
##### rc.local ##########################
exit 0
##### pm-utils ##########################
##### udev rules ########################
##### dmesg #############################
[ 114.131817] iwlwifi 0000:02:00.0: Not sending command - RF KILL
[ 114.131821] wlp2s0: failed to remove key (2, <MAC address>) from hardware (-5)
[ 114.132105] iwlwifi 0000:02:00.0: Not sending command - RF KILL (repeated 2 times)
[ 135.744805] r8169 0000:03:00.0 enp3s0: link up
[ 135.744817] IPv6: ADDRCONF(NETDEV_CHANGE): enp3s0: link becomes ready
[ 192.807649] r8169 0000:03:00.0 enp3s0: link down
[ 2183.322203] iwlwifi 0000:02:00.0: RF_KILL bit toggled to enable radio.
[ 2183.322493] iwlwifi 0000:02:00.0: L1 Enabled - LTR Disabled (repeated 2 times)
[ 2183.329227] iwlwifi 0000:02:00.0: Radio type=0x1-0x2-0x0
[ 2183.604254] iwlwifi 0000:02:00.0: L1 Enabled - LTR Disabled (repeated 2 times)
[ 2183.610955] iwlwifi 0000:02:00.0: Radio type=0x1-0x2-0x0
[ 2183.695256] IPv6: ADDRCONF(NETDEV_UP): wlp2s0: link is not ready (repeated 2 times)
[ 2189.909693] wlp2s0: authenticate with <MAC 'wewantutopia1' [AC1]>
[ 2189.911907] wlp2s0: send auth to <MAC 'wewantutopia1' [AC1]> (try 1/3)
[ 2189.930345] wlp2s0: authenticated
[ 2189.931877] wlp2s0: associate with <MAC 'wewantutopia1' [AC1]> (try 1/3)
[ 2189.932703] wlp2s0: RX AssocResp from <MAC 'wewantutopia1' [AC1]> (capab=0x1011 status=0 aid=1)
[ 2189.935028] wlp2s0: associated
[ 2189.935075] IPv6: ADDRCONF(NETDEV_CHANGE): wlp2s0: link becomes ready
[ 2190.032149] wlp2s0: Limiting TX power to 30 (30 - 0) dBm as advertised by <MAC 'wewantutopia1' [AC1]>
########## wireless info END ############
输出如下：
ls -la /etc/resolv.conf
ping 9.9.9.9 -c 4
nslookup google.de 9.9.9.9
nslookup google.de
dpkg -l |grep dnsmasq
dpkg -l |grep resolvconf
cat /run/resolvconf/resolv.conf
david@dk:~$ ls -la /etc/resolv.conf
-rw-r--r-- 1 root root 715 Mar 27 15:32 /etc/resolv.conf
david@dk:~$ ping 9.9.9.9 -c 4
PING 9.9.9.9 (9.9.9.9) 56(84) bytes of data.
64 bytes from 9.9.9.9: icmp_seq=1 ttl=57 time=15.0 ms
64 bytes from 9.9.9.9: icmp_seq=2 ttl=57 time=15.5 ms
64 bytes from 9.9.9.9: icmp_seq=3 ttl=57 time=22.4 ms
64 bytes from 9.9.9.9: icmp_seq=4 ttl=57 time=12.8 ms
--- 9.9.9.9 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3004ms
rtt min/avg/max/mdev = 12.813/16.477/22.487/3.619 ms
david@dk:~$ nslookup google.de 9.9.9.9
Server: 9.9.9.9
Address: 9.9.9.9#53
Non-authoritative answer:
Name: google.de
Address: 172.217.4.227
david@dk:~$ nslookup google.de
;; connection timed out; no servers could be reached
david@dk:~$ dpkg -l |grep dnsmasq
ii dnsmasq-base 2.75-1ubuntu0.16.04.5 amd64 Small caching DNS proxy and DHCP/TFTP server
david@dk:~$ dpkg -l |grep resolvconf
ii resolvconf 1.78ubuntu7 all name server information handler
david@dk:~$ cat /run/resolvconf/resolv.conf: nameserver 127.0.1.1
任何帮助都将不胜感激！谢谢！
答案1
好吧，在翻遍这里和 Ubuntu 论坛之间的无数帖子后，我终于找到了答案。我跟着这线程并运行：
sudo dpkg-reconfigure resolvconf
修复 /etc/resolv.conf 和 /run/resolvconf/resolv.conf 之间的符号链接
我的网络连接又可以正常工作了!!!!!!!!!!!