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：
1 # Assgin static IP by eric on 26-SEP-2012 2 iface eth0 inet static 3 address 192.168.196.135 #change to your static IP 4 netmask 255.255.255.0 #change to your netmask 5 gateway 192.168.196.255 #change to your getway 6 #We must specify dns-nameserver here 7 #in order to get internet access from host 8 dns-nameservers 192.168.196.255 9 auto eth0
编辑完成后的interfaces文件内容如下：
root@ubuntu:/etc/network# cat interfaces # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback #add by andy at 2014-08-14 # Assgin static IP by eric on 26-SEP-2012 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) 56(84) bytes of data. 64 bytes from 220.181.112.244: icmp_req=1 ttl=128 time=6.12 ms 64 bytes from 220.181.112.244: icmp_req=2 ttl=128 time=14.7 ms
OK。静态IP设置完成。
ubuntu 13.04 设定静态IP,布布扣,bubuko.com
原文：http://www.cnblogs.com/vikings-blog/p/3911905.html