众所周知,“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。那么在Centos7&RHEL7版系统中怎么使用命令查看IP信息呢?如何使用ifconfig来查看IP信息呢?
工具/原料
方法/步骤
17版系统查看网络信息的命令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”。要查看网卡细节:ip addr[root@linuxprobe ~]#ip addr
1: lo: mtu 16436 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: venet0: mtu 1500 qdisc noqueue state UNKNOWN
link/void
inet 127.0.0.1/32 scope host venet0
inet 192.168.1.101/32 brd 192.168.1.101 scope global venet0:0
2要查看网络接口统计数据:ip link[root@linuxprobe ~]#ip link
1: lo: mtu 16436 qdisc noqueue state UNKNOWN mode DEFAULT
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: venet0: mtu 1500 qdisc noqueue state UNKNOWN mode DEFAULT
link/void或者使用:ip -s link[root@linuxprobe ~]#ip -s link
1: lo: mtu 16436 qdisc noqueue state UNKNOWN mode DEFAULT
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
RX: bytes packets errors dropped overrun mcast
0 0 0 0 0 0
TX: bytes packets errors dropped carrier collsns
0 0 0 0 0 0
2: venet0: mtu 1500 qdisc noqueue state UNKNOWN mode DEFAULT
link/void
RX: bytes packets errors dropped overrun mcast
8515667 6667 0 0 0 0
TX: bytes packets errors dropped carrier collsns
300403 4249 0 0 0 0
3在CentOS 7最小化服务器版本中启用“ifconfig”命令其他网络命令请查阅《linux就该这么学》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:[root@linuxprobe ~]# yum provides ifconfig
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: centos.aol.in
* extras: centos.aol.in
* updates: centos.aol.in
net-tools-2.0-0.17.20131004git.el7.x86_64 : Basic networking tools
Repo : @base
Matched from:
Filename : /usr/sbin/ifconfig或者你也可以使用以下命令yum whatprovides ifconfig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。net-tools包提供了ifconfig命令。因此,安装net-tools包也可以使用ifconfig命令。
4安装net-tools包yum install net-tools现在,你就可以像以往一样使用ifconfig命令了。[root@linuxprobe ~]# ifconfig -a
lo: flags=73 mtu 16436
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10
loop txqueuelen 0 (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
venet0: flags=211 mtu 1500
inet 127.0.0.1 netmask 255.255.255.255 broadcast 0.0.0.0 destination 127.0.0.1
unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 txqueuelen 0 (UNSPEC)
RX packets 7073 bytes 8549159 (8.1 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 4611 bytes 359201 (350.7 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
venet0:0: flags=211 mtu 1500
inet 192.168.1.101 netmask 255.255.255.255 broadcast 192.168.1.101 destination 192.168.1.101
unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 txqueuelen 0 (UNSPEC)