Linux基础命令---ifcfg

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)