How To Install libapache2-mod-authnz-external on Ubuntu 18.04

In this tutorial we learn how to install libapache2-mod-authnz-external on Ubuntu 18.04. libapache2-mod-authnz-external is authenticate Apache against external authentication services

Introduction

In this tutorial we learn how to install libapache2-mod-authnz-external on Ubuntu 18.04.

What is libapache2-mod-authnz-external

libapache2-mod-authnz-external is:

Mod_Authnz_External can be used to quickly construct secure, reliable authentication systems. It can also be mis-used to quickly open gaping holes in your security. Read the documentation, and use with extreme caution.

Notably, this module can be used to securely authenticate against PAM (without exposing /etc/shadow file), using, for example, pwauth authenticator.

This Package includes the mod-authnz-external Module for Apache Version 2.x

There are three methods to install libapache2-mod-authnz-external 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 libapache2-mod-authnz-external Using apt-get

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

sudo apt-get update

After updating apt database, We can install libapache2-mod-authnz-external using apt-get by running the following command:

sudo apt-get -y install libapache2-mod-authnz-external

Install libapache2-mod-authnz-external Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install libapache2-mod-authnz-external using apt by running the following command:

sudo apt -y install libapache2-mod-authnz-external

Install libapache2-mod-authnz-external 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 libapache2-mod-authnz-external using aptitude by running the following command:

sudo aptitude -y install libapache2-mod-authnz-external

How To Uninstall libapache2-mod-authnz-external on Ubuntu 18.04

To uninstall only the libapache2-mod-authnz-external package we can use the following command:

sudo apt-get remove libapache2-mod-authnz-external

Uninstall libapache2-mod-authnz-external And Its Dependencies

To uninstall libapache2-mod-authnz-external and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:

sudo apt-get -y autoremove libapache2-mod-authnz-external

Remove libapache2-mod-authnz-external Configurations and Data

To remove libapache2-mod-authnz-external configuration and data from Ubuntu 18.04 we can use the following command:

sudo apt-get -y purge libapache2-mod-authnz-external

Remove libapache2-mod-authnz-external configuration, data, and all of its dependencies

We can use the following command to remove libapache2-mod-authnz-external configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge libapache2-mod-authnz-external

References

Summary

In this tutorial we learn how to install libapache2-mod-authnz-external package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.