How To Install libssl1.1 on Debian 11

In this tutorial we learn how to install libssl1.1 on Debian 11. libssl1.1 is Secure Sockets Layer toolkit - shared libraries

Introduction

In this tutorial we learn how to install libssl1.1 on Debian 11.

What is libssl1.1

libssl1.1 is:

This package is part of the OpenSSL project’s implementation of the SSL and TLS cryptographic protocols for secure communication over the Internet.

It provides the libssl and libcrypto shared libraries.

There are three methods to install libssl1.1 on Debian 11. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install libssl1.1 Using apt-get

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

sudo apt-get update

After updating apt database, We can install libssl1.1 using apt-get by running the following command:

sudo apt-get -y install libssl1.1

Install libssl1.1 Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install libssl1.1 using apt by running the following command:

sudo apt -y install libssl1.1

Install libssl1.1 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 libssl1.1 using aptitude by running the following command:

sudo aptitude -y install libssl1.1

How To Uninstall libssl1.1 on Debian 11

To uninstall only the libssl1.1 package we can use the following command:

sudo apt-get remove libssl1.1

Uninstall libssl1.1 And Its Dependencies

To uninstall libssl1.1 and its dependencies that are no longer needed by Debian 11, we can use the command below:

sudo apt-get -y autoremove libssl1.1

Remove libssl1.1 Configurations and Data

To remove libssl1.1 configuration and data from Debian 11 we can use the following command:

sudo apt-get -y purge libssl1.1

Remove libssl1.1 configuration, data, and all of its dependencies

We can use the following command to remove libssl1.1 configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge libssl1.1

Dependencies

libssl1.1 have the following dependencies:

References

Summary

In this tutorial we learn how to install libssl1.1 package on Debian 11 using different package management tools: apt, apt-get and aptitude.