shorewall6 command not found

Introduction

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

shorewall6: command not found

or when using sudo you get the following error message

sudo: shorewall6: command not found

Solutions to shorewall6: command not found

How To Fix shorewall6: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu shorewall6 is provided by shorewall6 package.

shorewall6 is:

Shorewall6 allows firewall/gateway requirements to be described using entries in a set of configuration files. It reads those configuration files and, with the help of the iptables utility, configures netfilter to match these requirements.

Shorewall6 supports a wide range of router/firewall/gateway applications, traffic shaping and almost every type of VPN.

This package contains IPv6 support.

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

sudo apt-get -y install shorewall6

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

You can also use apt command to install shorewall6.

sudo apt -y install shorewall6

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

sudo aptitude install shorewall6

Summary

In this tutorial we learn how to fix shorewall6 command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.