Bash ifconfig: command not found on CentOS/RHEL 7
Abstract: 0 (0.0 b) TX byteseth0 Link encap
ifconfig command is useful for getting details of the network configuration in Linux-based systems. Mostly when I install an older version of Linux operating systems, ifconfig command packages were default installed during installation of the operating system but when recently I installed CentOS 7 operating system, ifconfig command was not installed default with operating system installation.
Install Package for ifconfig Commandifconfig command comes from net-tools rpm package. Install this package using following command which is available under default repositories.
yum install net-toolsGetting Interface Information using ifconfig
Now use ifconfig command to check network configuration details. Below command will show details for all interfaces in system
[[email protected] ~]# ifconfig
eth0 Link encap:Ethernet HWaddr 08:00:27:AC:2D:45
inet addr:192.168.10.100 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::a00:27ff:feae:2545/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:877052 errors:0 dropped:0 overruns:0 frame:0
TX packets:840432 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1269001025 (1.1 GiB) TX bytes:61342574 (58.5 MiB)
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:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Use below command to show details for interface eth0 in system
ifconfig eth0
To get all interfaces details using ifconfig use following command.
ifconfig -a
