Most of us longtime Linux users have the ifconfig command seared into our brain, after years of repetitive use. It comes as a shock to some when they type the command and are met with an error message (ifconfig command not found). Indeed, the command has become deprecated, but it’s still possible to install ifconfig command.
In this tutorial, you will see how to install ifconfig command on Debian based and Red Hat based Linux distributions, as well as how to use the newer ip a command, which is meant to replace ifconfig.
In this tutorial you will learn:
- How to install the
ifconfigcommand on Linux - How to use the
ip acommand
| Category | Requirements, Conventions or Software Version Used |
|---|---|
| System | Any Linux distro |
| Software | net-tools |
| Other | Privileged access to your Linux system as root or via the sudo command. |
| Conventions | # – requires given linux commands to be executed with root privileges either directly as a root user or by use of sudo command$ – requires given linux commands to be executed as a regular non-privileged user |
Install missing ifconfig command – ifconfig command not found
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The
ifconfig is deprecated. We highly recommend that you eventually grow accustomed to its replacement, the ip command. Eventually all of us must adopt the newer conventions and leave behind old commands. We will show you how to use ip in this tutorial. Don’t worry, it’s easy!The ifconfig command has been deprecated and thus missing by default on some modern Linux distributions. You will receive a message “ifconfig command not found” if you try to use it.
# ifconfig -bash: ifconfig: command not found
The new and recommended alternative for examining a network configuration on Linux is with the ip command. For example, to use ip command to display a network configuration, run the following:
# ip address
The above ip command can be abbreviated to:
# ip a
If you still prefer to use ifconfig as part of your daily sysadmin routine, you can easily install ifconfig as part of the net-tools package.
On Debian based distros:
# apt update # apt install net-tools
On Red Hat based distros:
# dnf install net-tools
The ifconfig command is now available:
Closing Thoughts
In this tutorial, we saw how to install the ifconfig command on Debian based and Red Hat based Linux systems. Even though the command has been deprecated and there is a new successor, there is no harm in still using the old command if you find that it’s a habit which is difficult to break. The ip command is actually much more flexible and capable of some new things, so eventually you will find yourself using it as well.