How To Install firewalld on Debian 10

Learn how to install firewalld on Debian 10 with this tutorial. firewalld is dynamically managed firewall with support for network zones

Introduction

In this tutorial we learn how to install firewalld on Debian 10.

What is `firewalld`

firewalld is:

firewalld is a dynamically managed firewall daemon with support for network/firewall zones to define the trust level of network connections or interfaces. It has support for IPv4, IPv6 firewall settings and for ethernet bridges and has a separation of runtime and persistent configuration options. It also provides a D-Bus interface for services or applications to add and apply firewall rules on-the-fly.

There are three methods to install firewalld on Debian 10. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install firewalld Using apt-get

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

sudo apt-get update

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

sudo apt-get -y install firewalld

Install firewalld Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install firewalld using apt by running the following command:

sudo apt -y install firewalld

Install firewalld 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 firewalld using aptitude by running the following command:

sudo aptitude -y install firewalld

How To Uninstall firewalld on Debian 10

To uninstall only the firewalld package we can use the following command:

sudo apt-get remove firewalld

Uninstall firewalld And Its Dependencies

To uninstall firewalld and its dependencies that are no longer needed by Debian 10, we can use the command below:

sudo apt-get -y autoremove firewalld

Remove firewalld Configurations and Data

To remove firewalld configuration and data from Debian 10 we can use the following command:

sudo apt-get -y purge firewalld

Remove firewalld configuration, data, and all of its dependencies

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

sudo apt-get -y autoremove --purge firewalld

Dependencies

firewalld have the following dependencies:

References

Summary

In this tutorial we learn how to install firewalld package on Debian 10 using different package management tools: apt, apt-get and aptitude.