How To Install dropbear on Ubuntu 22.04

In this tutorial we learn how to install dropbear on Ubuntu 22.04. dropbear is lightweight SSH2 server and client - startup scripts

Introduction

In this tutorial we learn how to install dropbear on Ubuntu 22.04.

What is dropbear

dropbear is:

dropbear is a SSH 2 server and client designed to be small enough to be used in small memory environments, while still being functional and secure enough for general use.

It implements most required features of the SSH 2 protocol, and other features such as authentication agent forwarding.

There are three methods to install dropbear on Ubuntu 22.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install dropbear Using apt-get

Update apt database with apt-get using the following command.

sudo apt-get update

After updating apt database, We can install dropbear using apt-get by running the following command:

sudo apt-get -y install dropbear

Install dropbear Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install dropbear using apt by running the following command:

sudo apt -y install dropbear

Install dropbear Using aptitude

If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.

sudo aptitude update

After updating apt database, We can install dropbear using aptitude by running the following command:

sudo aptitude -y install dropbear

How To Uninstall dropbear on Ubuntu 22.04

To uninstall only the dropbear package we can use the following command:

sudo apt-get remove dropbear

Uninstall dropbear And Its Dependencies

To uninstall dropbear and its dependencies that are no longer needed by Ubuntu 22.04, we can use the command below:

sudo apt-get -y autoremove dropbear

Remove dropbear Configurations and Data

To remove dropbear configuration and data from Ubuntu 22.04 we can use the following command:

sudo apt-get -y purge dropbear

Remove dropbear configuration, data, and all of its dependencies

We can use the following command to remove dropbear configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge dropbear

References

Summary

In this tutorial we learn how to install dropbear package on Ubuntu 22.04 using different package management tools: apt, apt-get and aptitude.