Ways to Uninstall or Install fail2ban Ubuntu 22.04

Updated: September 19, 2022

Fail2ban monitors log files (e.g. /var/log/auth.log, /var/log/apache/access.log) and temporarily or persistently bans failure-prone addresses by updating existing firewall rules. Fail2ban allows easy specification of different actions to be taken such as to ban an IP using iptables or hostsdeny rules, or simply to send a notification email. In this guide, I will show you ways to install fail2ban Ubuntu 22.04.

Software Requirement

  • Operating system: fail2ban needs Ubuntu 22.04 to work
  • Privileges: Make sure you are able to execute sudo commands.

Prerequisites to install fail2ban on Ubuntu 22.04

Install fail2ban Ubuntu 22.04

fail2ban 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 that you think is easy and you can follow.

Install fail2ban using APT

This is a popular method for installing Ubuntu packages since it’s simple to understand, even if you’re new to Linux. Following these instructions to get fail2ban 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 the following Linux command:

sudo apt-get -y update

Step 2: Start the package installation on Ubuntu 22.04. After updating, you can install fail2ban Ubuntu by executing this command in the terminal.

sudo apt-get -y install fail2ban

Install fail2ban using Aptitude

Aptitude allows users to view a list of available packages and manage package installation, upgrade, and removal. If you haven’t already done so, run this command to install it.

sudo apt install aptitude

After that, you can now install fail2ban by following these steps:

Step 1: Update the APT database to download new packages from Ubuntu. Opening the terminal and executing the following Linux command:

sudo apt-get -y update

Step 2: Install the package on Ubuntu 22.04. You can now install fail2ban Ubuntu by executing this command in the terminal.

sudo aptitude install fail2ban

Uninstall fail2ban on Ubuntu 22.04

Have you ever thought that uninstalling an application from Ubuntu is difficult? You are mistaken; Anyone can easily uninstall any program, not just fail2ban.

If you installed fail2ban using APT or Aptitude, you could uninstall fail2ban on Ubuntu by running this command

sudo apt remove --auto-remove fail2ban

If you want to uninstall fail2ban and delete its data and dependencies, you can also run the following command:

sudo apt autoremove --purge fail2ban

Summary

In this tutorial, I showed you ways to install fail2ban on Ubuntu 22.04 and some ways to uninstall fail2ban too. If you need any help, don’t hesitate to contact me. I’m very glad to answer them.