Install libpam-pwquality by entering the following commands in the terminal:
sudo apt update sudo apt install libpam-pwquality
Description:
PAM module to check password strength
libpwquality's purpose is to provide common functions for password quality checking and also scoring them based on their apparent randomness. The library also provides a function for generating random passwords with good pronounceability. . This module can be plugged into the password stack of a given service to provide some plug-in strength-checking for passwords. The code was originaly based on pam_cracklib module and the module is backwards compatible with its options.
Homepage: https://github.com/libpwquality/libpwquality
Version: 1.4.0-2
Section: admin