libcrack2 software package provides pro-active password checker library, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libcrack2
libcrack2 is installed in your system.
Make ensure the libcrack2 package were installed using the commands given below,
$ sudo dpkg-query -l | grep libcrack2 *
You will get with libcrack2 package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Libraries |
| Package | libcrack2 |
| Version | 2.9.1-1build1 |
| Description | pro-active password checker library |
| Sub Section | libs |