问题

在Ubuntu桌面13.04中更改/etc/network/interfaces文件，不能更改ip地址，将DHCP转换为静态网络接口配置也不行。修改文件后我尝试sudo service networking restart

答案1

默认情况下，Ubuntu (Network Manager)忽略/etc/network/interfaces文件，要使所做的更改生效，请执行以下命令：sudo ifdown wlan0

sudo ifup wlan0

假设wlan0是你编辑的接口，一旦你这样做了，wlan0就会在/etc/network/interfaces中给出你的设置。

因为你是通过SSH连接的，你可以尝试以下操作：

编辑/etc/NetworkManager/NetworkManager.conf 将ifdown managed更改为false：[ifupdown]

managed=false

答案2

试试这个，按键盘上的ctrl+alt+t打开终端，打开后，运行下面的命令：sudo -i

gedit /etc/network/interfaces

一旦完成并退出

添加这里行dhcp模式auto eth0

iface eth0 inet dhcp

静态模式auto eth0

iface eth0 inet static

address xxx.xxx.xxx.xxx

netmask xxx.xxx.xxx.xxx

gateway xxx.xxx.xxx.xxx

完成后保存文件，然后：sudo service resolvconf restart

答案3

可以使用以下脚本更改ip地址：

用Ctrl+Alt+t打开终端并键入以下命令：sudo vi /etc/network/interfaces

或者gksudo gedit /etc/network/interfaces

查找eth部分并设置IP地址，如下所示：auto eth0

iface eth0 inet static

address 192.168.2.1

netmask 255.255.255.0

network 192.168.2.0

broadcast 192.168.2.255

保存并管理文件，完成后，重新启动网络：$ sudo /etc/init.d/networking restart

使用以下命令验证新的IP地址：$ ifconfig eth0

$ ifconfig

答案4

在所有接口上显示当前IP (ip addr )n2:~$ ip a

1: lo: mtu 16436 qdisc noqueue state UNKNOWN

link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00

inet 127.0.0.1/8 scope host lo

inet6 ::1/128 scope host

valid_lft forever preferred_lft forever

2: eth0: mtu 1500 qdisc pfifo_fast state DOWN qlen 1000

link/ether 00:e0:4c:6d:0a:49 brd ff:ff:ff:ff:ff:ff

3: wlan0: mtu 1500 qdisc mq state UP qlen 1000

link/ether 74:ea:3a:ad:2e:00 brd ff:ff:ff:ff:ff:ff

inet 172.22.0.221/24 brd 172.22.0.255 scope global wlan0

inet6 fe80::76ea:3aff:fead:2e00/64 scope link

valid_lft forever preferred_lft forever

将IP地址添加到无线接口(ip addr add )n2:~$ sudo ip a a 10.0.0.56/24 dev wlan0

[sudo] password for bensley:

再次显示IP地址，注意wlan +上的附加IP (ip addr )n2:~$ ip a

1: lo: mtu 16436 qdisc noqueue state UNKNOWN

link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00

inet 127.0.0.1/8 scope host lo

inet6 ::1/128 scope host

valid_lft forever preferred_lft forever

2: eth0: mtu 1500 qdisc pfifo_fast state DOWN qlen 1000

link/ether 00:e0:4c:6d:0a:49 brd ff:ff:ff:ff:ff:ff

3: wlan0: mtu 1500 qdisc mq state UP qlen 1000

link/ether 74:ea:3a:ad:2e:00 brd ff:ff:ff:ff:ff:ff

inet 172.22.0.221/24 brd 172.22.0.255 scope global wlan0

inet 10.0.0.56/24 scope global wlan0

inet6 fe80::76ea:3aff:fead:2e00/64 scope link

valid_lft forever preferred_lft forever

显示接口的链接状态(ip link )n2:~$ ip l

1: lo: mtu 16436 qdisc noqueue state UNKNOWN

link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00

2: eth0: mtu 1500 qdisc pfifo_fast state DOWN qlen 1000

link/ether 00:e0:4c:6d:0a:49 brd ff:ff:ff:ff:ff:ff

3: wlan0: mtu 1500 qdisc mq state UP qlen 1000

link/ether 74:ea:3a:ad:2e:00 brd ff:ff:ff:ff:ff:ff

从无线接口中删除第二个IP地址(ip addr delete )n2:~$ sudo ip a del 10.0.0.56/24 dev wlan0

只显示wlan0要检查的ip地址(ip addr show wlan0 )n2:~$ ip a s wlan0

3: wlan0: mtu 1500 qdisc mq state UP qlen 1000

link/ether 74:ea:3a:ad:2e:00 brd ff:ff:ff:ff:ff:ff

inet 172.22.0.221/24 brd 172.22.0.255 scope global wlan0

inet6 fe80::76ea:3aff:fead:2e00/64 scope link

valid_lft forever preferred_lft forever

同样的命令可以用来删除当前IP，然后172.22.0.221添加另一个，下面是一些命令，之后，我还需要添加新的默认路由；n2:~$ ip r s

default via 172.22.0.1 dev wlan0 proto static

169.254.0.0/16 dev wlan0 scope link metric 1000

172.22.0.0/24 dev wlan0 proto kernel scope link src 172.22.0.221 metric 2

192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1

ip a del 172.22.0.221/24 dev wlan0

ip a a 172.22.0.10/24 dev wlan

ip r a default via 172.22.0.1

# Re-add the same default route ^ via the same default gateway

答案5在/etc/NetworkManager/NetworkManager.conf中禁用网络连接的图形管理

收集有关静态IP的信息(接口，要使用的IP，默认网关，子网，DNS)

修改/etc/network/interfaces

重新启动网络和网络管理器服务

答案6

这是正确的方法。sudo ifconfig eth0 down

sudo ifconfig eth0

sudo ifconfig eth0 up

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