How To Install libpam-ssh on Ubuntu

Posted on April 1, 2023 (Last modified on May 20, 2023 )

2 minutes • 395 words

Introduction

In this tutorial we learn how to install libpam-ssh on Ubuntu.

What is `libpam-ssh`

libpam-ssh is:

This pluggable authentication module (PAM) provides single sign-on using secure shell (SSH) keys:

during authentication, the user types a SSH passphrase and is authenticated if the passphrase successfully decrypts the user’s SSH private keys;
in session phase, a ssh-agent process is started and decrypted keys are added, and thus the user can SSH to other hosts that accept key authentication without typing more passwords for the entire session.

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

Install libpam-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 libpam-ssh using apt-get by running the following command:

sudo apt-get -y install libpam-ssh

Install libpam-ssh Using apt

Update apt database with apt using the following command.

sudo apt update

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

sudo apt -y install libpam-ssh

Install libpam-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 Ubuntu. Update apt database with aptitude using the following command.

sudo aptitude update

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

sudo aptitude -y install libpam-ssh

How To Uninstall libpam-ssh on Ubuntu

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

sudo apt-get remove libpam-ssh

Uninstall libpam-ssh And Its Dependencies

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

sudo apt-get -y autoremove libpam-ssh

Remove libpam-ssh Configurations and Data

To remove libpam-ssh configuration and data from Ubuntu we can use the following command:

sudo apt-get -y purge libpam-ssh

Remove libpam-ssh configuration, data, and all of its dependencies

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

sudo apt-get -y autoremove --purge libpam-ssh

Dependencies

libpam-ssh have the following dependencies:

References

libpam-ssh website

Summary

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