linux 修改IP， DNS 命令 http://www.cnblogs.com/fighter/archive/2010/03/04/1678007.html
修改DNS
[root@localhost network-scripts]# vi /etc/sysconfig/network-scripts/resolv.conf
nameserver 202.98.96.68
nameserver 61.139.2.69
重新启动网络配置
/etc/init.d/network restart
linux 下 ifcfg-eth0 配置 http://www.cnblogs.com/iixiaowei/articles/2300084.html
网络接口配置文件 [root@localhost ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0 # Intel Corporation 82545EM Gigabit Ethernet Controller (Copper) TYPE=Ethernet #网卡类型 DEVICE=eth0 #网卡接口名称 ONBOOT=yes #系统启动时是否自动加载 BOOTPROTO=static #启用地址协议 --static:静态协议 --bootp协议 --dhcp协议 IPADDR=192.168.1.11 #网卡IP地址 NETMASK=255.255.255.0 #网卡网络地址 GATEWAY=192.168.1.1 #网卡网关地址 DNS1=10.203.104.41 #网卡DNS地址 HWADDR=00:0C:29:13:5D:74 #网卡设备MAC地址 BROADCAST=192.168.1.255 #网卡广播地址
重新导入ifcfg-eth0网络配置文件 [root@localhost ~]# /etc/init.d/network reload Shutting down interface eth0: [ OK ] Shutting down loopback interface: [ OK ] Bringing up loopback interface: [ OK ] Bringing up interface eth0: [ OK ] 网卡接口关闭与激活 [root@localhost ~]# ifdown eth0 #关闭网络 [root@localhost ~]# ifup eth0 #启动网络 网络服务启动与关闭 方法一: [root@localhost ~]# service network stop #关闭网络服务 [root@localhost ~]# service network start #启动网络服务 [root@localhost ~]# service network restart #重启网络服务 方法二： [root@localhost ~]# /etc/init.d/network stop [root@localhost ~]# /etc/init.d/network start [root@localhost ~]# /etc/init.d/network restart 网卡状态查询 [root@localhost ~]# service network status Configured devices: lo eth0 Currently active devices: lo eth0
查看当前路由及网关信息 [root@localhost ~]# netstat -r Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Iface 192.168.1.0 * 255.255.255.0 U 0 0 0 eth0 169.254.0.0 * 255.255.0.0 U 0 0 0 eth0 default 192.168.1.1 0.0.0.0 UG 0 0 0 eth0