How To Install systemd-resolved on Debian 12

Learn how to install systemd-resolved on Debian 12 with this tutorial. systemd-resolved is systemd DNS resolver

Introduction

In this tutorial we learn how to install systemd-resolved on Debian 12.

What is systemd-resolved

systemd-resolved is:

This package provides systemd’s DNS resolver and the command line tool to manage it.

Installing this package automatically overwrites /etc/resolv.conf and switches it to be managed by systemd-resolved.

There are three methods to install systemd-resolved on Debian 12. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install systemd-resolved Using apt-get

Update apt database with apt-get using the following command.

sudo apt-get update

After updating apt database, We can install systemd-resolved using apt-get by running the following command:

sudo apt-get -y install systemd-resolved

Install systemd-resolved Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install systemd-resolved using apt by running the following command:

sudo apt -y install systemd-resolved

Install systemd-resolved 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 systemd-resolved using aptitude by running the following command:

sudo aptitude -y install systemd-resolved

How To Uninstall systemd-resolved on Debian 12

To uninstall only the systemd-resolved package we can use the following command:

sudo apt-get remove systemd-resolved

Uninstall systemd-resolved And Its Dependencies

To uninstall systemd-resolved and its dependencies that are no longer needed by Debian 12, we can use the command below:

sudo apt-get -y autoremove systemd-resolved

Remove systemd-resolved Configurations and Data

To remove systemd-resolved configuration and data from Debian 12 we can use the following command:

sudo apt-get -y purge systemd-resolved

Remove systemd-resolved configuration, data, and all of its dependencies

We can use the following command to remove systemd-resolved configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge systemd-resolved

Dependencies

systemd-resolved have the following dependencies:

References

Summary

In this tutorial we learn how to install systemd-resolved package on Debian 12 using different package management tools: apt, apt-get and aptitude.