PS:在操作之前未防止不可预见性错误,最好提前做好备份,一般我们采用备份名为要备份文件名后面直接加bak,例如备份网卡信息: cp /etc/sysconfig/network-scripts/ifcfg-eth0 /etc/sysconfig/network-scripts/ifcfg-eth0bak
前言:linux的网卡信息存放在/etc/sysconfig/network-scripts下,网卡名分别为ifcfg-eth0、ifcfg-eth1、ifcfg-eth2等,
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logo:root
password:
#cd /etc/sysconfig/network-scripts //进入网卡信息文件
#ls //查看网卡信息
#cd //返回主目录
#cp /etc/sysconfig/network-scripts/ifcfg-eth0 /etc/sysconfig/network-scripts/ifcfg-eth0bak //备份网卡信息
#vi /etc/sysconfig/network-scripts/ifcfg-eth0 //编辑网卡信息,按下键盘上的insert键即可编辑,编辑好以后按ESC返回到命令行输入":wq!"保存退出,
#/etc/init.d/network restart //重启网卡,或者用命令service network restart
DEVICE=eth0 //定义本文件所对应的网络接口
BOOTPROTO=static //显示获取IP类型,static为静态IP,dhcp为动态IP
HWADDR=00:13:20:D1:B3:86 //Mac地址
IPADDR=180.153.225.108 //IP地址
NETMASK=255.255.255.192 //子网地址
GATEWAY=180.153.225.65 //网关地址
ONBOOT=yes //设置网络接口在系统启动时激活
#ping 8.8.8.8 //测试网络
如果不行就reboot重新启动下机器
Ps:要重新配置DNS可采用以下方法
#cp /etc/resolv.conf /etc/resolv.confbak110816 //备份文件
#vi /etc/resolv.conf //设置DNS服务器
nameserver 202.109.14.5 //主DNS
nameserver 219.141.136.10 //次DNS,设置好以后保存退出:wq!