RedHat 网卡设置
1 设置网关
需要root用户，编辑 /etc/sysconfig/network
NETWORKING=yes
NETWORKING_IPV6=yes
HOSTNAME=alex-home
GATEWAY=192.168.1.1

2 设置IP
编辑 /etc/sysconfig/network-script/ifcfg-eth0
DEVICE=eth0
BOOTPROTO=static
BROADCAST=192.168.1.255
IPADDR=192.168.1.2
IPV6INIT=yes
IPV6_AUTOCONF=yes
NETMASK=255.255.255.0
ONBOOT=yes

3 设置DNS
编辑 /etc/resolv.conf
nameserver 202.106.0.20

设置结束后，执行
service network restart