How To Install libpam-passwdqc on Ubuntu 18.04
Introduction
In this tutorial we learn how to install libpam-passwdqc on Ubuntu 18.04.
What is libpam-passwdqc
libpam-passwdqc is:
passwdqc is a password/passphrase strength checking and policy enforcement toolset, including a PAM module (libpam-passwdqc), command-line programs (pwqcheck and pwqgen), and a library (libpasswdqc0).
pam_passwdqc (optionally) integrates with PAM such that it gets invoked when users change their passwords. The module is capable of checking password or passphrase strength, enforcing a policy, and offering randomly-generated passphrases, with all of these features being optional and easily (re-)configurable.
There are three methods to install libpam-passwdqc on Ubuntu 18.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install libpam-passwdqc 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-passwdqc using apt-get by running the following command:
sudo apt-get -y install libpam-passwdqc
Install libpam-passwdqc Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install libpam-passwdqc using apt by running the following command:
sudo apt -y install libpam-passwdqc
Install libpam-passwdqc 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-passwdqc using aptitude by running the following command:
sudo aptitude -y install libpam-passwdqc
How To Uninstall libpam-passwdqc on Ubuntu 18.04
To uninstall only the libpam-passwdqc package we can use the following command:
sudo apt-get remove libpam-passwdqc
Uninstall libpam-passwdqc And Its Dependencies
To uninstall libpam-passwdqc and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove libpam-passwdqc
Remove libpam-passwdqc Configurations and Data
To remove libpam-passwdqc configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge libpam-passwdqc
Remove libpam-passwdqc configuration, data, and all of its dependencies
We can use the following command to remove libpam-passwdqc configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge libpam-passwdqc
References
Summary
In this tutorial we learn how to install libpam-passwdqc package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
