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1、ifconfig和ip addr都看不到本机192.168.10网段的IP2、cat /etc/sysconfig/network-scripts/ifcfg-em2发现有192.168.10网段的IP，以为网线被拔掉了，后来到机房看网线是插好的3、继续查询才发现192.168.10网段的IP...展开全文
服务器之前可以连通192.167.10.11的，现在突然ping不同了。
1、ifconfig和ip addr都看不到本机192.168.10网段的IP
2、cat /etc/sysconfig/network-scripts/ifcfg-em2发现有192.168.10网段的IP，以为网线被拔掉了，后来到机房看网线是插好的
3、继续查询才发现192.168.10网段的IP对应的ONBOOT=no，重新ifconfig em2 up后解决
[root@ebsdev ~]# history |grep mount
704 mount 192.167.10.11:/volume1/dbsbak /dbsbak
742 umount /dbsbak
--ifconfig没有显示192.168.10网段的IP
[root@ebsdev vbpbak]# ifconfig
em2 Link encap:Ethernet HWaddr A4:BA:DB:36:9B:38
inet6 addr: fe80::a6ba:dbff:fe36:9b38/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:31624404 errors:0 dropped:0 overruns:0 frame:0
TX packets:3 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2783785598 (2.5 GiB) TX bytes:270 (270.0 b)
128 Link encap:Ethernet HWaddr A4:BA:DB:36:9B:37
inet addr:192.168.128.172 Bcast:192.168.128.255 Mask:255.255.255.0
inet6 addr: fe80::a6ba:dbff:fe36:9b37/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:139452228 errors:0 dropped:0 overruns:0 frame:0
TX packets:31576165 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:38000646597 (35.3 GiB) TX bytes:24891534426 (23.1 GiB)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:731881261 errors:0 dropped:0 overruns:0 frame:0
TX packets:731881261 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:116710422261 (108.6 GiB) TX bytes:116710422261 (108.6 GiB)
--ip addr没有显示192.168.10网段的IP
[root@ebsdev vbpbak]# 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: 128: mtu 1500 qdisc mq state UP qlen 1000
link/ether a4:ba:db:36:9b:37 brd ff:ff:ff:ff:ff:ff
inet 192.168.128.172/24 brd 192.168.128.255 scope global 128
inet6 fe80::a6ba:dbff:fe36:9b37/64 scope link
valid_lft forever preferred_lft forever
3: em2: mtu 1500 qdisc mq state UP qlen 1000
link/ether a4:ba:db:36:9b:38 brd ff:ff:ff:ff:ff:ff
inet6 fe80::a6ba:dbff:fe36:9b38/64 scope link
valid_lft forever preferred_lft forever
[root@ebsdev vbpbak]# cat /etc/sysconfig/network-scripts/ifcfg-128
HWADDR=A4:BA:DB:36:9B:37
TYPE=Ethernet
BOOTPROTO=none
IPADDR=192.168.128.172
PREFIX=24
GATEWAY=192.168.128.1
DEFROUTE=yes
IPV4_FAILURE_FATAL=yes
IPV6INIT=no
NAME=128
UUID=4c153aa8-ab08-48d0-995a-87a8e0c681a9
ONBOOT=yes
DEVICE=128
USERCTL=no
NETMASK=255.255.255.0
有192.168.10网段的IP
[root@ebsdev vbpbak]# cat /etc/sysconfig/network-scripts/ifcfg-em2
DEVICE=em2
HWADDR=a4:ba:db:36:9b:38
TYPE=Ethernet
UUID=5de6d96b-6691-4a3d-ac3c-1eda48ca9db8
ONBOOT=no
NM_CONTROLLED=yes
BOOTPROTO=none
IPADDR=192.167.10.25
NETMASK=255.255.255.0
IPV6INIT=no
USERCTL=no
解决方法
ifconfig em2 up
weixin_32142311 2021-05-13 09:26:23 -
今天打开虚拟机，输入ifconfig后发现找不到IP了。。但是我的电脑明明是联网的 1、首先查看自己的配置文件 ifcfg-lo配置文件如下 以上这种情况代表配置文件没有问题 2、使用dhclient -v 命令 给自己的虚拟机动态的...展开全文
今天打开虚拟机，输入ifconfig后发现找不到IP了。。但是我的电脑明明是联网的
1、首先查看自己的配置文件
ifcfg-lo配置文件如下
以上这种情况代表配置文件没有问题2、使用dhclient -v 命令 给自己的虚拟机动态的分配IP
3、然后输入ifconfig 就可以看到我们的IP了
xuetiedan 2021-11-16 20:57:37 -
执行命令：yum search ifconfig 执行命令：yum install net-tools.x86_64 此时再次执行ifconfig展开全文
执行命令：yum search ifconfig
执行命令：yum install net-tools.x86_64
此时再次执行ifconfig
bingxue_xuebing 2021-10-31 15:17:54 -
Linux中ifconfig命令不显示IP地址$ ifconfigbash: ifconfig: command not found环境：非root用户登录$ lsb_release -aLSB Version: :core-3.0-amd64:core-3.0-ia32:core-3.0-noarch:graphics-3.0-amd64:graphics-3.0...展开全文
Linux中ifconfig命令不显示IP地址
$ ifconfig
bash: ifconfig: command not found
环境：
非root用户登录
$ lsb_release -a
LSB Version: :core-3.0-amd64:core-3.0-ia32:core-3.0-noarch:graphics-3.0-amd64:graphics-3.0-ia32:graphics-3.0-noarch
Distributor ID: CentOS
Description: CentOS release 4.3 (Final)
Release: 4.3
Codename: Final
解决：
$ whereis ifconfig
ifconfig: /sbin/ifconfig.old /sbin/ifconfig /usr/share/man/man8/ifconfig.8.gz /usr/share/man/man8/ifconfig.8
$ /sbin/ifconfig
eth1 Link encap:Ethernet HWaddr XXXXXXX
inet addr:XXXXXXXXX Bcast:XXXXXXXX Mask:255.255.255.128
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:740194638 errors:0 dropped:398 overruns:0 frame:15
TX packets:1409116497 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:622505947542 (579.7 GiB) TX bytes:1299620061208 (1.1 TiB)
Interrupt:36
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:590278628 errors:0 dropped:0 overruns:0 frame:0
TX packets:590278628 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:121711705636 (113.3 GiB) TX bytes:121711705636 (113.3 GiB)
解决二：
查看登录用户的path：
$ echo $PATH
path中没有 /sbin/ifconfig ，添加到path中：
$ export PATH=$PATH:/sbin
再次执行：
$ ifconfig
eth1 Link encap:Ethernet HWaddr XXXXXXXXX
inet addr:XXXXXXXX Bcast:XXXXXXX Mask:255.255.255.128
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:740213476 errors:0 dropped:398 overruns:0 frame:15
TX packets:1409138987 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:622508623742 (579.7 GiB) TX bytes:1299632841268 (1.1 TiB)
Interrupt:36
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:590326935 errors:0 dropped:0 overruns:0 frame:0
TX packets:590326935 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:121723122294 (113.3 GiB) TX bytes:121723122294 (113.3 GiB)
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