# 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
auto eth0　　//指定eth0网卡
iface eth0 inet static //静态地址（动态获取用dhcp）
address 192.168.77.133 //IP地址
netmask 255.255.255.0 //子网掩码
gateway 192.168.77.254 //默认网关

nameserver 8.8.8.8
nameserver 4.4.4.4

#/etc/init.d/networking restart
或者
#service networking restart