For those of you who haven't yet heard about John the Ripper (hereby called John for brevity), it is a free password cracking tool written mostly in C. Before going any further, we must tell you that although we trust our readers, we do not encourage or condone any malicious activities that may be performed using this tool or any other tools we talked about in the past.
This is a companion discussion topic for the original entry at https://linuxconfig.org/password-cracking-with-john-the-ripper-on-linux