keypair command not found

In this troubleshooting guide we learn how to fix keypair command not found error message

Introduction

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

keypair: command not found

or when using sudo you get the following error message

sudo: keypair: command not found

In Ubuntu keypair is provided by quicktun package.

quicktun is:

Probably the simplest VPN tunnel software ever, yet it’s very secure. It relies on the NaCl encryption library.

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

sudo apt-get -y install quicktun

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

You can also use apt command to install quicktun.

sudo apt -y install quicktun

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

sudo aptitude install quicktun

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