Install libcrack2 by entering the following commands in the terminal:
sudo apt update sudo apt install libcrack2
Description:
pro-active password checker library
Shared library for cracklib2 which contains a C function which may be used in a passwd like program. The idea is simple: try to prevent users from choosing passwords that could be guessed by crack by filtering them out, at source. cracklib2 is NOT a replacement passwd program. cracklib2 is a LIBRARY.
Homepage: http://sourceforge.net/projects/cracklib
Version: 2.9.2-5build1
Section: libs