crack software package provides Password guessing program, you can install in your Ubuntu 16.10 (Yakkety Yak) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install crack
crack is installed in your system.
Make ensure the crack package were installed using the commands given below,
$ sudo dpkg-query -l | grep crack *
You will get with crack package name, version, architecture and description in a table
| Distro | Ubuntu 16 10 yakkety yak |
| Section | Administration Utilities |
| Package | crack |
| Version | 5.0a-9.3 |
| Description | Password guessing program |
| Sub Section | admin |