ubuntu 13.04 设定静态IP

切换到root用户，然后进入/etc/network目录。备份interfaces文件(备份文件是一个好习惯)

下面编辑interfaces文件，添加如下语句：

 # Assgin static IP by eric on -SEP-
 iface eth0 inet static
 address 192.168.196.135         #change to your static IP
 netmask 255.255.255.0           #change to your netmask
 gateway 192.168.196.255         #change to your getway
 #We must specify dns-nameserver here
 #in order to get internet access from host
 dns-nameservers 192.168.196.255
 auto eth0

编辑完成后的interfaces文件内容如下：

root@ubuntu:/etc/network# cat interfaces
# interfaces() file used by ifup() and ifdown()
auto lo
iface lo inet loopback

#add by andy at --
# Assgin static IP by eric on -SEP-
iface eth0 inet static
address 192.168.196.135         #change to your static IP
netmask 255.255.255.0           #change to your netmask
gateway 192.168.196.255         #change to your getway
#We must specify dns-nameserver here
#in order to get internet access from host
dns-nameservers 192.168.196.255
auto eth0

下一步就是重启网卡：

root@ubuntu:/etc/network# /etc/init.d/networking restart

重启完成后，测试一下：

 root@ubuntu:/etc/network# ping www.baidu.com.cn
 PING www.a.shifen.com (220.181.112.244) () bytes of data.
  bytes from 220.181.112.244: icmp_req= ttl= time=6.12 ms
  bytes from 220.181.112.244: icmp_req= ttl= time=14.7 ms

OK。静态IP设置完成。