Share your story
The central voice for Linux and Open Source security news
Home News Topics Advisories HOWTOs Features Newsletters About Register

Sign up!
EnGarde Community
What is the most important Linux security technology?
Linux Events
Linux User Groups
Link to Us
Security Center
Book Reviews
Security Dictionary
Security Tips
White Papers
Featured Blogs
All About Linux
DanWalsh LiveJournal
Latest Newsletters
Linux Advisory Watch: March 6th, 2015
Linux Advisory Watch: February 27th, 2015
LinuxSecurity Newsletters
Choose Lists:
About our Newsletters
RSS Feeds
Get the LinuxSecurity news you want faster with RSS
Powered By

How to crack passwords, and why you should Print E-mail
User Rating:      How can I rate this item?
Source: - Posted by Benjamin D. Thomas   
Article Index
How to crack passwords, and why you should
Page 2
Security Auditing passwords is a worthwhile venture, particularly in an environment that deals with sensitive information. Because systems encrypt passwords when they store them, you really can't properly judge the strength of a password unless you try to crack it. We suggest using a password-cracking tool such as John the Ripper. This tool works extremely well because it can crack MD5 passwords, which most systems currently use. In addition, it's much faster and more sophisticated than earlier password-cracking software such as Crack.

Once you've installed the tool, either from RPM or by compiling a copy yourself, you can set it to work. Keep in mind that John the Ripper uses a fair amount of CPU, but it will only use idle CPU time. However, copying the /etc/shadow file to a nonessential machine and running the tool on that, rather than a production machine, wouldn't be a bad idea either.

Read this full article at

please helpWritten by Aaron on 2006-06-22 02:47:13
hey i need to crack a password so i can find out if the baby my girlfriend is having is really even my baby... please help me!
MRWritten by Alex on 2006-06-27 15:09:11
need to know a passwordWritten by mindy on 2006-10-08 22:41:46
i need to know a password for a yahoo account
finding out a passwordWritten by dawn on 2006-11-12 23:36:13
i need to find out the password for please to see if he is having an affair on me. please help me!!
Password helpWritten by stephanie on 2006-11-27 21:34:16
I need to find out if my boyfriend is cheating. Can you help me get his password? Thanks!
Written by charles chapin on 2006-12-09 10:54:03
i need a password
bhawna purilWritten by raj singh on 2006-12-10 13:56:54
dear sir 
plz help me to find password to this email 
plz send me on this id
i need passwordsWritten by jamie on 2006-12-17 09:39:47
Please help me i need to know the password for: 
on the school intranet 
they have changed there passwords and we need to know
Please helpWritten by Diana on 2006-12-18 13:09:26
Please help me to find the password to and please email it to me on I need to know if my hubby is cheating on me
lashy97@aol.comWritten by Ceewa on 2006-12-18 23:43:38
Can you determine a password on a cell phone online account? Need phone record of my spouse to see the calling patterns of his mistress.
HELPWritten by Lillie on 2007-01-12 10:22:17
i need to crack myspace and facebook firewalls and i need the to know FAST!!!!

< Prev   Next >


Latest Features
Peter Smith Releases Linux Network Security Online
Securing a Linux Web Server
Password guessing with Medusa 2.0
Password guessing as an attack vector
Squid and Digest Authentication
Squid and Basic Authentication
Demystifying the Chinese Hacking Industry: Earning 6 Million a Night
Free Online security course (LearnSIA) - A Call for Help
What You Need to Know About Linux Rootkits
Review: A Practical Guide to Fedora and Red Hat Enterprise Linux - Fifth Edition
Yesterday's Edition
CSI: Cyber: We Watched So You Didnít Have To
PATCH FREAK NOW: Cloud providers faulted for slow response
Partner Sponsor

Community | HOWTOs | Blogs | Features | Book Reviews | Networking
 Security Projects |  Latest News |  Newsletters |  SELinux |  Privacy |  Home
 Hardening |   About Us |   Advertise |   Legal Notice |   RSS |   Guardian Digital
(c)Copyright 2015 Guardian Digital, Inc. All rights reserved.