如何查看CentOS Linux上面的IP地址信息（主要针对CentOS 7.x）
1228 人阅读 | 时间：2021年03月23日 21:00
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对于CentOS 5.x, 6.x,来说，查看IP信息的命令是ifconfig，这个命令是在系统里面默认就带的，但是自从有了CentOS 7之后，很多人发现这个命令不存在了，执行ipconfig命令之后是这样的。
[root@localhost ~]# ipconfig
-bash: ipconfig: command not found
那如何来查看CentOS 7的IP信息呢？
# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 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
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp5s0f0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000
link/ether 00:1b:21:bb:f9:fc brd ff:ff:ff:ff:ff:ff
inet 192.168.1.10/29 brd 192.168.1.15 scope global enp5s0f0
valid_lft forever preferred_lft forever
inet6 fe80::21b:21ff:febb:f9fc/64 scope link
valid_lft forever preferred_lft forever
3: enp1s0f0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN qlen 1000
link/ether 00:25:90:35:de:e4 brd ff:ff:ff:ff:ff:ff
4: enp1s0f1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN qlen 1000
link/ether 00:25:90:35:de:e5 brd ff:ff:ff:ff:ff:ff
5: enp5s0f1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN qlen 1000
link/ether 00:1b:21:bb:f9:fd brd ff:ff:ff:ff:ff:ff
在这里，我们看到了5个网络设备，enp5s0f0上面的192.168.1.10/29就是我们的IP地址。
另外还可以安装iconfig命令，首先需要知道哪个工具包里面有iconfig命令，如果不知道的话，可以用yum provides ifconfig 来查看，通过此命令知道是net-tools
# yum install net-tools
安装好之后，我们熟悉的iconfig命令就可以用了
# ifconfig
enp1s0f0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether 00:25:90:35:de:e4 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
device memory 0xfbbe0000-fbbfffff
enp1s0f1: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether 00:25:90:35:de:e5 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
device memory 0xfbb60000-fbb7ffff
enp5s0f0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.10 netmask 255.255.255.248 broadcast 192.168.1.10
inet6 fe80::21b:21ff:febb:f9fc prefixlen 64 scopeid 0x20<link>
ether 00:1b:21:bb:f9:fc txqueuelen 1000 (Ethernet)
RX packets 23465 bytes 25373312 (24.1 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 19151 bytes 3629457 (3.4 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
enp5s0f1: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether 00:1b:21:bb:f9:fd 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
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 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
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