ubuntu网络配置

Nov 7, 2015 · 1 minute read · Comments
ubuntunetwork

Ubuntu配置网络静态IP

Ubuntu网络配置文件是在/etc/network/interfaces
>默认文件

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
auto eth0
iface eth0 inet dhcp

如果我们想要配置静态IP可以这样：

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
# The loopback network interface
auto lo
#iface lo inet loopback
# The primary network interface        #此行注释掉
auto eth0
iface eth0 inet static                 #将"dhcp"修改为"static"
address 10.0.0.125                     #增加下面三行
gateway 10.0.0.2
netmask 255.255.255.0

配置DNS，在/etc/resolv.conf文件中

# 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 10.0.0.2

重启服务器。

Ubuntu 14.04 重启后DNS配置丢失问题的解决方案

每次修改DNS配置文件 /etc/resolv.conf 重启后就会失效。从网上查知，这个文件是动态创建，所以每次重启都会被重写。

更改方式有以下两种如下：

1.

vi /etc/network/interfaces
dns-nameservers 8.8.8.8 

2.

vi /etc/resolvconf/resolv.conf.d/base
nameserver 8.8.8.8
nameserver 114.114.114.114

保存，然后执行：resolvconf -u。
重启之后，/etc/resolv.conf里面的内容被加载成了base中的数据。
所以到此为止成功解决了重启后DNS配置丢失的问题。