Objective
The the network command line tool ifconfig is not installed thus missing by default on CentOS 7 Linux. Users are instead encouraged to use ip command to do most of the network administration work.
For example the following ip command can be used to show IP address on CentOS 7:
# ip address show
OR SIMPLY
# ip a s
1: lo:
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: eth0:
link/ether f2:d9:fc:79:72:d7 brd ff:ff:ff:ff:ff:ff
inet 10.1.1.145/8 brd 10.255.255.255 scope global dynamic eth0
valid_lft 861944sec preferred_lft 861944sec
inet6 fe80::f0d9:fcff:fe79:72d7/64 scope link
valid_lft forever preferred_lft forever
3: virbr0:
link/ether 52:54:00:e3:e3:3e brd ff:ff:ff:ff:ff:ff
inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
valid_lft forever preferred_lft forever
4: virbr0-nic:
link/ether 52:54:00:e3:e3:3e brd ff:ff:ff:ff:ff:ff
However, it is still possible to use the old-fashioned ifconfig command. If needed, you can install ifconfig on CentOS 7 Linux which is a part of net-tools package.
Requirements
Privileged access to your CentOS 7 Linux server/desktop.
Difficulty
EASY
Conventions
- # – requires given linux commands to be executed with root privileges either directly as a root user or by use of
sudocommand - $ – requires given linux commands to be executed as a regular non-privileged user
Instructions
CentOS 7 ifconfig install
For guidance on ifconfig install across different Linux distributions, check our ifconfig install guide. Execute the following yum command in order to install ifconfig on CentOS 7:
# yum install net-tools
CentOS 7 ifconfig usage
Once the net-tools package is installed, the ifconfig command becomes available:
