How To Install ifupdown-extra on Debian 11
Introduction
In this tutorial we learn how to install ifupdown-extra on Debian 11.
What is ifupdown-extra
ifupdown-extra is:
This package provides a set of network testing scripts to be used together with the ifupdown package. These scripts can:
- check the network cable before an interface is configured.
- test if an assigned IPv4 or IPv6 address is already in use in the network.
- test if default network gateways are reachable.
- setup default static routes for interfaces.
Additionally network static routes can also be defined globally for the system when this is needed (e.g. for ‘reject’ rules) and will be added after network initialisation.
This package also provides ’network-test’, a script to test the network configuration status by checking:
- Status of available interface.
- Availability of configured gateway routes.
- If host resolution is working properly (DNS checks).
- If network connectivity is working, including ICMP and web connections to remote web servers.
There are three methods to install ifupdown-extra on Debian 11. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install ifupdown-extra Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install ifupdown-extra using apt-get by running the following command:
sudo apt-get -y install ifupdown-extra
Install ifupdown-extra Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install ifupdown-extra using apt by running the following command:
sudo apt -y install ifupdown-extra
Install ifupdown-extra Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Debian. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install ifupdown-extra using aptitude by running the following command:
sudo aptitude -y install ifupdown-extra
How To Uninstall ifupdown-extra on Debian 11
To uninstall only the ifupdown-extra package we can use the following command:
sudo apt-get remove ifupdown-extra
Uninstall ifupdown-extra And Its Dependencies
To uninstall ifupdown-extra and its dependencies that are no longer needed by Debian 11, we can use the command below:
sudo apt-get -y autoremove ifupdown-extra
Remove ifupdown-extra Configurations and Data
To remove ifupdown-extra configuration and data from Debian 11 we can use the following command:
sudo apt-get -y purge ifupdown-extra
Remove ifupdown-extra configuration, data, and all of its dependencies
We can use the following command to remove ifupdown-extra configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge ifupdown-extra
Dependencies
ifupdown-extra have the following dependencies:
References
Summary
In this tutorial we learn how to install ifupdown-extra package on Debian 11 using different package management tools: apt, apt-get and aptitude.