无法让 ifup 和 ifdown 启动 eth0 | Ubuntu 14.04

无法让 ifup 和 ifdown 启动 eth0 | Ubuntu 14.04

我正在尝试在双启动笔记本电脑(Win10 和 Ubuntu Studio 14.04)上设置静态 IP。这些是设置:

sudo nano /etc/network/interfaces:

# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet static
address         192.168.1.101
    netmask         255.255.255.0
    network         192.168.1.0
    broadcast       192.168.1.255
    gateway         192.168.1.1
    dns-nameservers 192.168.1.1 8.8.8.8
    dns-domain example.com
    dns-search example.com

sudo nano /etc/NetworkManager/NetworkManager.conf:

/etc/NetworkManager/NetworkManager.conf
[main]
plugins=ifupdown,keyfile,ofono
#dns=dnsmasq
no-auto-default=54:04:A6:25:64:2E,
[ifupdown]
managed=true

(“no-auto--” 的上方和下方各有一个行空格)

ifconfig 返回以下内容:

eth0      Link encap:Ethernet  HWaddr 54:04:a6:25:64:2e  
      inet addr:192.168.1.101  Bcast:192.168.1.255  Mask:255.255.255.0
      UP 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)

      lo        Link encap:Local Loopback  
      inet addr:127.0.0.1  Mask:255.0.0.0
      inet6 addr: ::1/128 Scope:Host
      UP LOOPBACK RUNNING  MTU:65536  Metric:1
      RX packets:312 errors:0 dropped:0 overruns:0 frame:0
      TX packets:312 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:1 
      RX bytes:29521 (29.5 KB)  TX bytes:29521 (29.5 KB)

      wlan0     Link encap:Ethernet  HWaddr 78:92:9c:45:05:ae  
      inet addr:192.168.43.110  Bcast:192.168.43.255  Mask:255.255.255.0
      inet6 addr: fe80::7a92:9cff:fe45:5ae/64 Scope:Link
      UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
      RX packets:2631 errors:0 dropped:0 overruns:0 frame:0
      TX packets:2507 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:1000 
      RX bytes:1816247 (1.8 MB)  TX bytes:375757 (375.7 KB)

sudo ifdown eth0 返回

 `RTNETLINK answers: No such process

有专业人士给我提过什么建议,我应该尝试怎样做才能正确?目标配置是:eth0 启动/eth0 启动时互联网连接。我可以发布路由器和 GUI 网络管理器设置。

sudo ifup eth0 引发以下响应:

 `RTNETLINK answers: File exists
  Failed to bring up eth0.`

答案1

请尝试‘=false’并重新启动网络管理器:

sudo service network-manager restart

你的interfaces文件看起来有点忙;我会将其修改为:

# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback

auto eth0
iface eth0 inet static
address 192.168.1.101
netmask 255.255.255.0
gateway 192.168.1.1
dns-nameservers 192.168.1.1 8.8.8.8
dns-domain example.com
dns-search example.com

然后重试:

sudo ifdown eth0 && sudo ifup -v eth0

你連線了嗎?

ping -c3 www.ubuntu.com

答案2

有几件事;NetworkManager.conf 中的 MAC 地址应为小写,并且应删除结尾的“,” 。鉴于您已将有线接口的 MAC 规定为非托管,您还应设置:

[ifupdown]
managed=false

您的文件格式interfaces看上去没有问题。

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