请帮帮我，我厌倦了谷歌搜索。从 16.04.01 升级到 16.10 后，我的有线互联网连接就断了。（这是 Ubuntu 的问题，因为我使用相同的连接与 Windows 进行了双启动）。
请帮帮我 - 我应该从哪里下载什么？我应该在命令行中输入什么 - 我是一名 Windows 程序员，但 Linux 新手
这是我在发现我的互联网连接中断后用 Google 搜索的所有内容的“信息”，它应该包含所需的信息。
非常感谢，我实际上正在测试 Ubuntu，以便永远忘记 Windows。
martin@martin-Lin:/etc/NetworkManager$ sudo service network-manager restart
martin@martin-Lin:/etc/NetworkManager$ ifconfig
enp9s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet6 fe80::428d:5cff:fee7:b729 prefixlen 64 scopeid 0x20<link>
ether 40:8d:5c:e7:b7:29 txqueuelen 1000 (Ethernet)
RX packets 96 bytes 6423 (6.4 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 29 bytes 3508 (3.5 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 19
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1 (Local Loopback)
RX packets 46517 bytes 2873462 (2.8 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 46517 bytes 2873462 (2.8 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
martin@martin-Lin:/etc/NetworkManager$ nmcli device show
GENERAL.DEVICE: enp9s0
GENERAL.TYPE: ethernet
GENERAL.HWADDR: 40:8D:5C:E7:B7:29
GENERAL.MTU: 1500
GENERAL.STATE: 10 (unmanaged)
GENERAL.CONNECTION: --
GENERAL.CON-PATH: --
WIRED-PROPERTIES.CARRIER: on
IP4.GATEWAY:
IP6.ADDRESS[1]: fe80::428d:5cff:fee7:b729/64
IP6.GATEWAY:
GENERAL.DEVICE: lo
GENERAL.TYPE: loopback
GENERAL.HWADDR: 00:00:00:00:00:00
GENERAL.MTU: 65536
GENERAL.STATE: 10 (unmanaged)
GENERAL.CONNECTION: --
GENERAL.CON-PATH: --
IP4.ADDRESS[1]: 127.0.0.1/8
IP4.GATEWAY:
IP6.ADDRESS[1]: ::1/128
IP6.GATEWAY:
martin@martin-Lin:/etc/NetworkManager$ ifconfig -a
enp9s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet6 fe80::428d:5cff:fee7:b729 prefixlen 64 scopeid 0x20<link>
ether 40:8d:5c:e7:b7:29 txqueuelen 1000 (Ethernet)
RX packets 130 bytes 8463 (8.4 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 29 bytes 3508 (3.5 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 19
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1 (Local Loopback)
RX packets 49605 bytes 3058742 (3.0 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 49605 bytes 3058742 (3.0 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
martin@martin-Lin:/etc/NetworkManager$ sudo lshw -C network
*-network
description: Ethernet interface
product: Killer E220x Gigabit Ethernet Controller
vendor: Qualcomm Atheros
physical id: 0
bus info: pci@0000:09:00.0
logical name: enp9s0
version: 10
serial: 40:8d:5c:e7:b7:29
size: 1Gbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm pciexpress msi msix bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=alx duplex=full latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
resources: irq:132 memory:df100000-df13ffff ioport:d000(size=128)
martin@martin-Lin:/etc/NetworkManager$ lspci
00:00.0 Host bridge: Intel Corporation Skylake Host Bridge/DRAM Registers (rev 07)
00:01.0 PCI bridge: Intel Corporation Skylake PCIe Controller (x16) (rev 07)
00:14.0 USB controller: Intel Corporation Sunrise Point-H USB 3.0 xHCI Controller (rev 31)
00:14.2 Signal processing controller: Intel Corporation Sunrise Point-H Thermal subsystem (rev 31)
00:16.0 Communication controller: Intel Corporation Sunrise Point-H CSME HECI #1 (rev 31)
00:17.0 SATA controller: Intel Corporation Sunrise Point-H SATA controller [AHCI mode] (rev 31)
00:1b.0 PCI bridge: Intel Corporation Sunrise Point-H PCI Root Port #17 (rev f1)
00:1c.0 PCI bridge: Intel Corporation Sunrise Point-H PCI Express Root Port #1 (rev f1)
00:1c.3 PCI bridge: Intel Corporation Sunrise Point-H PCI Express Root Port #4 (rev f1)
00:1c.4 PCI bridge: Intel Corporation Sunrise Point-H PCI Express Root Port #5 (rev f1)
00:1d.0 PCI bridge: Intel Corporation Sunrise Point-H PCI Express Root Port #9 (rev f1)
00:1d.4 PCI bridge: Intel Corporation Sunrise Point-H PCI Express Root Port #13 (rev f1)
00:1f.0 ISA bridge: Intel Corporation Sunrise Point-H LPC Controller (rev 31)
00:1f.2 Memory controller: Intel Corporation Sunrise Point-H PMC (rev 31)
00:1f.3 Audio device: Intel Corporation Sunrise Point-H HD Audio (rev 31)
00:1f.4 SMBus: Intel Corporation Sunrise Point-H SMBus (rev 31)
01:00.0 VGA compatible controller: NVIDIA Corporation GM206 [GeForce GTX 960] (rev a1)
01:00.1 Audio device: NVIDIA Corporation Device 0fba (rev a1)
03:00.0 PCI bridge: Intel Corporation DSL6540 Thunderbolt 3 Bridge [Alpine Ridge 4C 2015]
04:00.0 PCI bridge: Intel Corporation DSL6540 Thunderbolt 3 Bridge [Alpine Ridge 4C 2015]
04:01.0 PCI bridge: Intel Corporation DSL6540 Thunderbolt 3 Bridge [Alpine Ridge 4C 2015]
04:02.0 PCI bridge: Intel Corporation DSL6540 Thunderbolt 3 Bridge [Alpine Ridge 4C 2015]
04:04.0 PCI bridge: Intel Corporation DSL6540 Thunderbolt 3 Bridge [Alpine Ridge 4C 2015]
07:00.0 USB controller: Intel Corporation DSL6540 USB 3.1 Controller [Alpine Ridge]
09:00.0 Ethernet controller: Qualcomm Atheros Killer E220x Gigabit Ethernet Controller (rev 10)
martin@martin-Lin:/etc/NetworkManager$ ^C
martin@martin-Lin:/etc/NetworkManager$ dmesg | grep -i iflagn
martin@martin-Lin:/etc/NetworkManager$ dmesg | grep -i iwlagn
martin@martin-Lin:/etc/NetworkManager$ dmesg | grep -i network
[ 0.714099] FUJITSU Extended Socket Network Device Driver - version 1.1 - Copyright (c) 2015 FUJITSU LIMITED
[ 2.549851] audit: type=1400 audit(1489865731.360:6): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=918 comm="apparmor_parser"
[ 2.549853] audit: type=1400 audit(1489865731.360:7): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-helper" pid=918 comm="apparmor_parser"
martin@martin-Lin:/etc/NetworkManager$ ^C
martin@martin-Lin:/etc/NetworkManager$ dmesg | grep -i enp9s0
[ 0.759784] alx 0000:09:00.0 enp9s0: renamed from eth0
[ 1178.074130] IPv6: ADDRCONF(NETDEV_UP): enp9s0: link is not ready
[ 1178.074958] alx 0000:09:00.0 enp9s0: NIC Up: 1 Gbps Full
[ 1178.075161] IPv6: ADDRCONF(NETDEV_CHANGE): enp9s0: link becomes ready
martin@martin-Lin:/etc/NetworkManager$ dmesg | grep -i eth0
[ 0.744418] alx 0000:09:00.0 eth0: Qualcomm Atheros AR816x/AR817x Ethernet [40:8d:5c:e7:b7:29]
[ 0.759784] alx 0000:09:00.0 enp9s0: renamed from eth0
martin@martin-Lin:/etc/NetworkManager$ ^C
martin@martin-Lin:/etc/NetworkManager$ dmesg | grep -i atheros
[ 0.744418] alx 0000:09:00.0 eth0: Qualcomm Atheros AR816x/AR817x Ethernet [40:8d:5c:e7:b7:29]
martin@martin-Lin:/etc/NetworkManager$ dmesg | grep -i ethernet
[ 0.744418] alx 0000:09:00.0 eth0: Qualcomm Atheros AR816x/AR817x Ethernet [40:8d:5c:e7:b7:29]
[ 4.509133] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
changed:
etc network interfaces: # interfaces(5) file used by ifup(8) and ifdown(8)
#was: auto lo
#was: iface lo inet loopback
auto enp9s0
iface enp9s0 inet dhcp
martin@martin-Lin:/etc/network$ sudo service network-manager restart
martin@martin-Lin:/etc/network$ sudo lshw -C network
*-network
description: Ethernet interface
product: Killer E220x Gigabit Ethernet Controller
vendor: Qualcomm Atheros
physical id: 0
bus info: pci@0000:09:00.0
logical name: enp9s0
version: 10
serial: 40:8d:5c:e7:b7:29
size: 1Gbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm pciexpress msi msix bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=alx duplex=full latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
resources: irq:132 memory:df100000-df13ffff ioport:d000(size=128)
martin@martin-Lin:/etc/network$
martin@martin-Lin:/etc/network$ sudo ifconfig enp9s0 up
martin@martin-Lin:/etc/network$ sudo ifconfig eth0 up
eth0: ERROR while getting interface flags: No such device
martin@martin-Lin:/etc/network$ sudo service network-manager start
cat etc/resolv.conf
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
# DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 127.0.0.53
martin@martin-Lin:/$ ping 127.0.0.53
PING 127.0.0.53 (127.0.0.53) 56(84) bytes of data.
64 bytes from 127.0.0.53: icmp_seq=1 ttl=64 time=0.026 ms
64 bytes from 127.0.0.53: icmp_seq=2 ttl=64 time=0.040 ms
64 bytes from 127.0.0.53: icmp_seq=3 ttl=64 time=0.040 ms
64 bytes from 127.0.0.53: icmp_seq=4 ttl=64 time=0.042 ms
64 bytes from 127.0.0.53: icmp_seq=5 ttl=64 time=0.041 ms
64 bytes from 127.0.0.53: icmp_seq=6 ttl=64 time=0.041 ms
64 bytes from 127.0.0.53: icmp_seq=7 ttl=64 time=0.041 ms
64 bytes from 127.0.0.53: icmp_seq=8 ttl=64 time=0.041 ms
64 bytes from 127.0.0.53: icmp_seq=9 ttl=64 time=0.041 ms
64 bytes from 127.0.0.53: icmp_seq=10 ttl=64 time=0.040 ms
64 bytes from 127.0.0.53: icmp_seq=11 ttl=64 time=0.038 ms
64 bytes from 127.0.0.53: icmp_seq=12 ttl=64 time=0.040 ms
^C
--- 127.0.0.53 ping statistics ---
12 packets transmitted, 12 received, 0% packet loss, time 11241ms
rtt min/avg/max/mdev = 0.026/0.039/0.042/0.006 ms
nmcli dev show | grep DNS
martin@martin-Lin:/$ nmcli dev show
GENERAL.DEVICE: enp9s0
GENERAL.TYPE: ethernet
GENERAL.HWADDR: 40:8D:5C:E7:B7:29
GENERAL.MTU: 1500
GENERAL.STATE: 10 (unmanaged)
GENERAL.CONNECTION: --
GENERAL.CON-PATH: --
WIRED-PROPERTIES.CARRIER: on
IP4.GATEWAY:
IP6.ADDRESS[1]: fe80::428d:5cff:fee7:b729/64
IP6.GATEWAY:
GENERAL.DEVICE: lo
GENERAL.TYPE: loopback
GENERAL.HWADDR: 00:00:00:00:00:00
GENERAL.MTU: 65536
GENERAL.STATE: 10 (unmanaged)
GENERAL.CONNECTION: --
GENERAL.CON-PATH: --
IP4.ADDRESS[1]: 127.0.0.1/8
IP4.GATEWAY:
IP6.ADDRESS[1]: ::1/128
IP6.GATEWAY:
martin@martin-Lin:/$ nslookup google.com
Server: 127.0.0.53
Address: 127.0.0.53#53
** server can't find google.com: SERVFAIL
martin@martin-Lin:/$ sudo service systemd-resolved restart
deleted line dnsmasq from networkManager
restarted the service
stil no internet.
martin@martin-Lin:/etc/NetworkManager$ sudo rm /etc/resolv.conf
martin@martin-Lin:/etc/NetworkManager$ cd ..
martin@martin-Lin:/etc$ cd ..
martin@martin-Lin:/$ sudo rm /etc/resolv.conf
rm: cannot remove '/etc/resolv.conf': No such file or directory
martin@martin-Lin:/$ sudo ln -s ../run/resolvconf/resolv.conf /etc/resolv.conf
martin@martin-Lin:/$ sudo resolvconf -u
martin@martin-Lin:/$ sudo service network-manager restart
martin@martin-Lin:/$
sudo service network-manager restart
martin@martin-Lin:/$ sudo service resolvconf restart
martin@martin-Lin:/$ dmesg | grep -e alx
[ 0.744418] alx 0000:09:00.0 eth0: Qualcomm Atheros AR816x/AR817x Ethernet [40:8d:5c:e7:b7:29]
[ 0.759784] alx 0000:09:00.0 enp9s0: renamed from eth0
[ 12.846082] parport_pc ppdev lp parport ip_tables x_tables autofs4 hid_generic usbhid psmouse alx mdio ahci libahci i2c_hid video hid pinctrl_sunrisepoint pinctrl_intel fjes
[ 1178.074958] alx 0000:09:00.0 enp9s0: NIC Up: 1 Gbps Full
martin@martin-Lin:/$ lsmod | grep -e alx
alx 36864 0
mdio 16384 1 alx
（我将其发布在 UbuntuForums 上：https://ubuntuforums.org/showthread.php?t=2355981）
答案1
修改接口文件：
sudo nano /etc/networking/interfaces
auto lo
iface lo inet loopback
auto enp9s0
iface enp9s0 inet dhcp
保存更改并重新启动。