====== Утилита john ======

  * [[https://www.openwall.com/john/|John the Ripper password cracker]]
  * [[https://en.wikipedia.org/wiki/Passwd|Passwd Shadow file wikipedia]]
  * [[https://unix.stackexchange.com/questions/642570/the-format-of-encrypted-password-in-etc-shadow|The format of encrypted password in `/etc/shadow`]]
  * [[https://www.cyberciti.biz/faq/understanding-etcshadow-file/|Understanding /etc/shadow file format on Linux]]

  * При нажатии на Enter выводит статистическую информацию

===== Debian/Ubuntu =====
<code>
# apt install john

# john --format=crypt /etc/shadow
</code>

===== Windows =====

  * [[https://www.openwall.com/john/k/john-1.9.0-jumbo-1-win64.zip]]