无法获得ifup & ifdown来打开eth0 \Ubuntu14.04

Question

我试图在双引导膝上设置一个静态IP ( Win10和UbuntuStudio14.04)。以下是设置：

sudo nano /etc/网络/接口：

# 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

(在“不自动”的上方和下面有一个行空间)

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 eth0返回

 `RTNETLINK answers: No such process

专业人士有什么建议吗?我应该试着把它做好吗？目标配置是: eth0 up / internet连接，而eth0是向上的。我可以张贴路由器和gui网络管理器设置。

sudo eth0引发了这样的反应：

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

Answer 1

请尝试'=false‘并重新启动网络管理器：

sudo service network-manager restart

您的interfaces文件看起来有点忙；我会将它修改为：

# 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

然后再试：

sudo ifdown eth0 && sudo ifup -v eth0

你联系上了吗？

ping -c3 www.ubuntu.com

Answer 2

一些事情；MAC地址在NetworkManager.conf中应该是小写的，并且您应该删除尾随'，‘。考虑到您已经将有线接口的MAC规定为非托管，您还应该设置：

[ifupdown]
managed=false

您的interfaces文件的格式看起来很好。