#文件路径
/etc/sysconfig/network-scripts/ifcfg-eth0
#文件说明
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
#使配置生效
*方法1: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 ]
*方法2:重启服务
[root@localhost ~]#service network restart
Shutting down loopback interface: [ OK ]
Bringing up loopback interface: [ OK ]
Bringing up interface eth0: [ OK ]
*方法3:重启服务
[root@localhost ~]# /etc/init.d/network restart
Shutting down loopback interface: [ OK ]
Bringing up loopback interface: [ OK ]
Bringing up interface eth0: [ OK ]
*方法4:网卡接口关闭与激活
[root@localhost ~]# ifdown eth0 #关闭网卡
[root@localhost ~]# ifup eth0 #启动网卡
#临时配置网卡信息,无需重启。
[root@localhost ~]# ifconfig eth0 10.1.1.10 netmask 255.0.0.0
#状态查询
*网卡
[root@localhost ~]# service network status
Configured devices:lo eth0
Currently active devices:lo eth0
*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