CentOS7刚发布，我忍不住把DELL T410从CentOS6升级到CentOS7。好不容易等安装结束后，立即配置网络，然后在yum源上安装环境。可是执行ifconfig的时候系统提示让我傻了眼：
[[email protected] ~]# ifconfig
-bash: ifconfig: 未找到命令
这可是新安装的系统，怎么会没找到熟悉ifconfig命令呢？网上搜一下，一大堆人都在说是环境变量问题，但我确信我的/etc/profile设置是对的，于是终于找到一篇文章说是安装下net-tools就好
| 代码如下 | 复制代码 |
| [[email protected] ~]# yum install net-tools | |
已加载插件：fastestmirror
| 代码如下 | 复制代码 |
| Repository base is listed more than once in the configuration Repository updates is listed more than once in the configuration Repository extras is listed more than once in the configuration Repository centosplus is listed more than once in the configuration Repository contrib is listed more than once in the configuration base | 3.6 kB 00:00:00 extras | 3.3 kB 00:00:00 updates | 3.4 kB 00:00:00 updates/7/x86_64/primary_db | 2.8 MB 00:00:08 Determining fastest mirrors |
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软件包 net-tools-2.0-0.17.20131004git.el7.x86_64 已安装并且是最新版本
无须任何处理
因为我已安装过net-tools所以提示我已经安装，现在熟悉的ifconfig又回来了
| 代码如下 | 复制代码 |
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[[email protected] ~]# ifconfig em2: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500 ether 78:2b:cb:41:9a:03 txqueuelen 1000 (Ethernet) 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 eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 |
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