pam_abl command not found

Introduction

When you run more command in linux terminal / console, you get the following error message

pam_abl: command not found

or when using sudo you get the following error message

sudo: pam_abl: command not found

Solutions to pam_abl: command not found

How To Fix pam_abl: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu pam_abl is provided by libpam-abl package.

libpam-abl is:

a PAM module that provides auto blacklisting of hosts and users responsible for repeated failed authentication attempts. Generally configured so that blacklisted users still see normal login prompts but are guaranteed to fail to authenticate.

To fix this problem, we can install more using the command below.

sudo apt-get -y install libpam-abl

This command might take some time to finish depending on your machine internet connection.

You can also use apt command to install libpam-abl.

sudo apt -y install libpam-abl

Or if you have aptitude installed you can use the following command.

sudo aptitude install libpam-abl

Summary

In this tutorial we learn how to fix pam_abl command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.