Crack claves linux:
john shadow boom!!!!!!!!!!!!!
extenso: http://thehackerway.com/2011/05/20/uso-practico-de-john-the-ripper/
en castellano: https://bioinformatiquillo.wordpress.com/2007/12/16/crackear-contrasenas-de-linux-con-john-the-ripper/
wordlist spanish: http://download.openwall.net/pub/wordlists/languages/Spanish/