最近安装了一个最小化版本的CentOS 7，发现不能使用 ifconfig命令，界面提示：
ifconfig command not found.

解决办法：

1. 从yum找出哪个包括ifconfig 命令
   [root@tangym ~]# yum provides ifconfig Loaded plugins: fastestmirror
   Loading mirror speeds from cached hostfile

   • base: mirrors.zju.edu.cn
   • extras: mirrors.163.com
   • updates: mirrors.163.com
     net-tools-2.0-0.22.20131004git.el7.x86_64 : Basic networking tools
     Repo : @base
     Matched from:
     Filename : /usr/sbin/ifconfig
2. 从上面可以看到 net-tools 包中可以找到ifconfig命令
3. 安装net-tools
   [root@tangym ~]# yum provides ifconfig

4. 安装完成之后，将可以使用ifconfig 命令了
   [root@tangym ~]# ifconfig
   eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
   inet 192.168.1.20 netmask 255.255.255.0 broadcast 192.168.1.255
   inet6 fe80::1157:71fe:de9b:3e7e prefixlen 64 scopeid 0x20<link>
   ether 00:15:5d:01:07:3c txqueuelen 1000 (Ethernet)
   RX packets 29890 bytes 42966542 (40.9 MiB)
   RX errors 0 dropped 0 overruns 0 frame 0
   TX packets 18814 bytes 1278145 (1.2 MiB)
   TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

           lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
                           inet 127.0.0.1  netmask 255.0.0.0
                           inet6 ::1  prefixlen 128  scopeid 0x10<host>
                           loop  txqueuelen 1  (Local Loopback)
                           RX packets 0  bytes 0 (0.0 B)
                           RX errors 0  dropped 0  overruns 0  frame 0
                           TX packets 0  bytes 0 (0.0 B)
                           TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

本文转自 yuanzhitang 51CTO博客，原文链接：http://blog.51cto.com/yuanzhitang/2056473，如需转载请自行联系原作者