How to Uninstall or Install apf-firewall Ubuntu 22.04

Updated: October 21, 2022

Advanced Policy Firewall (APF) is an iptables(netfilter) based firewall system designed around the essential needs of today’s Internet deployed servers and the unique needs of custom deployed Linux installations. The configuration of APF is designed to be very informative and present the user with an easy to follow process, from top to bottom of the configuration file. The management of APF on a day-to-day basis is conducted from the command line with the ‘apf’ command, which includes detailed usage information and all the features one would expect from a current and forward thinking firewall solution. I will show you how to install apf-firewall on Ubuntu 22.04 in this guide.

Requirements to install

  • Operating system: Ubuntu 22.04 or older versions with more than 2GB RAM
  • Privileges: Make sure you are able to execute sudo commands.

Prerequisites to install apf-firewall on Ubuntu 22.04

Install apf-firewall Ubuntu 22.04

apf-firewall is one of the popular ways on Ubuntu now so that this tutorial will show you how to install it in various ways. Choose the one you believe is simple and easy to follow.

Install apf-firewall using APT

This is a popular method for installing any Ubuntu packages because it’s easy to follow, even if you are a newbie in Linux. Following these steps to get apf-firewall on your Ubuntu 22.04.

Step 1: You must update the APT package repository cache before attempting to install, update, or remove any packages. Obtain new packages from Ubuntu by updating the APT database. Opening the terminal and executing this Linux command:

sudo apt-get update

Step 2: Install the package on Ubuntu 22.04. After updating, you can install apf-firewall Ubuntu by pasting this command into the terminal and pressing Enter.

sudo apt install apf-firewall

Install apf-firewall using Aptitude

Users can manage their installation, upgrade, and removal of packages with Aptitude and view a list of the packages that are currently available. If you haven’t already installed it on Ubuntu, run this command to do so.

sudo apt install aptitude

After installing aptitude, you can now install apf-firewall by following these steps:

Step 1: Obtain new packages from Ubuntu by updating the APT database. Opening the terminal and executing this Linux command:

sudo apt -y update

Step 2: Start the package installation on Ubuntu 22.04. After updating, you can install apf-firewall Ubuntu by pasting this command into the terminal and pressing Enter.

sudo aptitude install apf-firewall

Uninstall apf-firewall on Ubuntu 22.04

Have you ever considered how challenging it might be to uninstall an application from Ubuntu? You’re wrong, anyone can easily uninstall any program, not just a apf-firewall.

You can uninstall apf-firewall Ubuntu by running this command if you installed it using APT or Aptitude.

sudo apt remove --auto-remove apf-firewall

To uninstall apf-firewall and remove its data and dependencies, you can also use the following command:

sudo apt autoremove --purge apf-firewall

Conclusion

In this tutorial, I showed you ways to install apf-firewall on Ubuntu 22.04 and some ways to uninstall apf-firewall too. Please contact me if you require any assistance. I’d be delighted to respond.