ifcfg

      ifcfg是一个简单的脚本替换iconfig命令，它可以设置网络接口的ip地址。

      此命令的适用范围：RedHat、RHEL、Ubuntu、CentOS、SUSE、openSUSE、Fedora。


1、语法

      ifcfg [device] [cmd]  [address]

      device就是网卡设备，它可能有别名。cmd可以是add、delete、stop。address就是ip地址。

 

2、选项列表

无

 

3、实例

1）添加ip地址 


​​[root@localhost ~]# ifcfg eth0 add 192.168.0.250/24                     //​​​​添加地址​​​​250​​

​​Forwarding is ON or its state is unknown (4). OK, No RDISC.​​

​​[root@localhost ~]#ifconfig                                               //​​​​查看网络信息​​

​​eth0      Link encap:Ethernet  HWaddr 08:00:27:14:33:57  ​​

​​          inet addr:192.168.0.250  Bcast:192.168.0.255 Mask:255.255.255.0​​

​​          inet6 addr: fe80::a00:27ff:fe14:3357/64 Scope:Link​​

​​          UP BROADCAST RUNNING MULTICAST  MTU:1500 Metric:1​​

​​          RX packets:107276 errors:0 dropped:0 overruns:0 frame:0​​

​​          TX packets:72250 errors:0 dropped:0 overruns:0 carrier:0​​

​​          collisions:0 txqueuelen:1000 ​​

​​          RX bytes:83580745 (79.7 MiB)  TX bytes:5842176 (5.5 MiB)​​


2）删除ip地址 


​​[root@localhost ~]# ifcfg eth0 delete 192.168.0.250/24                   //​​​​删除网卡地址​​

​​Forwarding is ON or its state is unknown (4). OK, No RDISC.​​

​​[root@localhost ~]# ifconfig                                                 //​​​​查看网卡信息，​​​​ip​​​​地址已经删除​​

​​eth0      Link encap:Ethernet  HWaddr 08:00:27:14:33:57  ​​

​​          inet6 addr: fe80::a00:27ff:fe14:3357/64 Scope:Link​​

​​          UP BROADCAST RUNNING MULTICAST  MTU:1500 Metric:1​​

​​          RX packets:107276 errors:0 dropped:0 overruns:0 frame:0​​

​​          TX packets:72251 errors:0 dropped:0 overruns:0 carrier:0​​

​​          collisions:0 txqueuelen:1000 ​​

​​          RX bytes:83580745 (79.7 MiB)  TX bytes:5842218 (5.5 MiB)​​