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5.3 KiB
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125 lines
5.3 KiB
Markdown
CentOS 7最小化安装后找不到‘ifconfig’命令——修复小提示
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================================================================================
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就像我们所知道的，“**ifconfig**”命令用于配置GNU/Linux系统的网络接口。它显示网络接口卡的详细信息，包括IP地址，MAC地址，以及网络接口卡状态之类。但是，该命令已经过时了，而且在最小化版本的RHEL 7以及它的克隆版本CentOS 7，Oracle Linux 7和Scientific Linux 7中也找不到该命令。
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### 在CentOS最小化服务器版本中如何查找网卡IP和其它详细信息？ ###
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CentOS 7最小化系统，使用“**ip addr**”和“**ip link**”命令来查找网卡详情。要知道统计数据，可以使用“**ip -s link**”。
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要查看网卡细节，输入以下命令：
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ip addr
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输出样例：
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1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
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link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
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inet 127.0.0.1/8 scope host lo
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inet6 ::1/128 scope host
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valid_lft forever preferred_lft forever
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2: venet0: <BROADCAST,POINTOPOINT,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN
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link/void
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inet 127.0.0.1/32 scope host venet0
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inet 192.168.1.101/32 brd 192.168.1.101 scope global venet0:0
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要查看网络接口统计数据，输入命令：
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ip link
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输出样例：
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1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN mode DEFAULT
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link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
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2: venet0: <BROADCAST,POINTOPOINT,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN mode DEFAULT
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link/void
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或者
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ip -s link
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输出样例：
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1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN mode DEFAULT
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link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
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RX: bytes packets errors dropped overrun mcast
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0 0 0 0 0 0
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TX: bytes packets errors dropped carrier collsns
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0 0 0 0 0 0
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2: venet0: <BROADCAST,POINTOPOINT,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN mode DEFAULT
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link/void
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RX: bytes packets errors dropped overrun mcast
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8515667 6667 0 0 0 0
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TX: bytes packets errors dropped carrier collsns
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300403 4249 0 0 0 0
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### 在CentOS 7最小化服务器版本中如何启用并使用“ifconfig”命令？ ###
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如果你不知道在哪里可以找到ifconfig命令，请按照以下简单的步骤来找到它。首先，让我们找出哪个包提供了ifconfig命令。要完成这项任务，输入以下命令：
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yum provides ifconfig
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输出样例：
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Loaded plugins: fastestmirror
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Loading mirror speeds from cached hostfile
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* base: centos.aol.in
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* extras: centos.aol.in
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* updates: centos.aol.in
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net-tools-2.0-0.17.20131004git.el7.x86_64 : Basic networking tools
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Repo : @base
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Matched from:
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Filename : /usr/sbin/ifconfig
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或者你也可以使用以下命令。
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yum whatprovides ifconfig
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这里，“provides”或者“whatprovides”开关用于找出某个包提供了某些功能或文件。
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就像你在上面的输出中所看到的，**net-tools**包提供了ifconfig命令。因此，让我们安装net-tools包来使用ifconfig命令。
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yum install net-tools
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现在，你就可以像以往一样使用**ifconfig**命令了。
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ifconfig -a
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输出样例：
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lo: flags=73<UP,LOOPBACK,RUNNING> mtu 16436
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inet 127.0.0.1 netmask 255.0.0.0
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inet6 ::1 prefixlen 128 scopeid 0x10<host>
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loop txqueuelen 0 (Local Loopback)
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RX packets 0 bytes 0 (0.0 B)
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RX errors 0 dropped 0 overruns 0 frame 0
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TX packets 0 bytes 0 (0.0 B)
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TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
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venet0: flags=211<UP,BROADCAST,POINTOPOINT,RUNNING,NOARP> mtu 1500
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inet 127.0.0.1 netmask 255.255.255.255 broadcast 0.0.0.0 destination 127.0.0.1
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unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 txqueuelen 0 (UNSPEC)
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RX packets 7073 bytes 8549159 (8.1 MiB)
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RX errors 0 dropped 0 overruns 0 frame 0
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TX packets 4611 bytes 359201 (350.7 KiB)
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TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
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venet0:0: flags=211<UP,BROADCAST,POINTOPOINT,RUNNING,NOARP> mtu 1500
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inet 192.168.1.101 netmask 255.255.255.255 broadcast 192.168.1.101 destination 192.168.1.101
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unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 txqueuelen 0 (UNSPEC)
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尽情享受吧！
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--------------------------------------------------------------------------------
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via: http://www.unixmen.com/ifconfig-command-found-centos-7-minimal-installation-quick-tip-fix/
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作者：[Senthilkumar][a]
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译者：[GOLinux](https://github.com/GOLinux)
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校对：[Caroline](https://github.com/carolinewuyan)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创翻译，[Linux中国](http://linux.cn/) 荣誉推出
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[a]:http://www.unixmen.com/author/sk/
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