How To Install ssh on Debian 9

In this tutorial we learn how to install ssh on Debian 9. ssh is secure shell client and server (metapackage)

Introduction

In this tutorial we learn how to install ssh on Debian 9.

What is ssh

ssh is:

This metapackage is a convenient way to install both the OpenSSH client and the OpenSSH server. It provides nothing in and of itself, so you may remove it if nothing depends on it.

There are three methods to install ssh on Debian 9. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install ssh Using apt-get

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

sudo apt-get update

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

sudo apt-get -y install ssh

Install ssh Using apt

Update apt database with apt using the following command.

sudo apt update

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

sudo apt -y install ssh

Install ssh 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 Debian. Update apt database with aptitude using the following command.

sudo aptitude update

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

sudo aptitude -y install ssh

How To Uninstall ssh on Debian 9

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

sudo apt-get remove ssh

Uninstall ssh And Its Dependencies

To uninstall ssh and its dependencies that are no longer needed by Debian 9, we can use the command below:

sudo apt-get -y autoremove ssh

Remove ssh Configurations and Data

To remove ssh configuration and data from Debian 9 we can use the following command:

sudo apt-get -y purge ssh

Remove ssh configuration, data, and all of its dependencies

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

sudo apt-get -y autoremove --purge ssh

Dependencies

ssh have the following dependencies:

References

Summary

In this tutorial we learn how to install ssh package on Debian 9 using different package management tools: apt, apt-get and aptitude.