firewall-applet command not found

Introduction

When you run more command in linux terminal / console, you get the following error message

firewall-applet: command not found

or when using sudo you get the following error message

sudo: firewall-applet: command not found

Solutions to firewall-applet: command not found

How To Fix firewall-applet: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu firewall-applet is provided by firewall-applet package.

firewall-applet 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.

This package provides a panel applet which shows status information of firewalld.

To fix this problem, we can install more using the command below.

sudo apt-get -y install firewall-applet

This command might take some time to finish depending on your machine internet connection.

You can also use apt command to install firewall-applet.

sudo apt -y install firewall-applet

Or if you have aptitude installed you can use the following command.

sudo aptitude install firewall-applet

Summary

In this tutorial we learn how to fix firewall-applet command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.