Re: Using John to crack a password

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On 11/21/2016 02:25 PM, Robert Moskowitz wrote:
> I have a running system that I have forgotten the root password.  I 
> really do not want to take down the system, go through the steps to boot 
> up in single user mode and change the password.
> 
> I just happen to have used the same password on a test system, so I was 
> able to copy the /etc/passwd, edit it so that it only contains the root 
> user and feed it into john on a notebook I have (F22).
> 
> Well john has been working for 20 hours (one cpu pegged at 100%).  I did 
> not think the password was that complex!
> 
> Anyone have any experience with this?  Is there a better cracker than 
> john?  I DO know a couple of the letters in the password (not the 
> numbers or special characters or the letter case) and password length.  
> Is there some tool that I can feed in a partial password like 'a?bc??d?"?
>>

is it not nice to know that you and fedora created a fairly secure password?

no experiance yet. but i do subscribe to their list.

interesting "Subject:" line;

  How long should I let JtR munch?

results in a question to pass along to you, did you run JtR against the
test examples to insure you have a good compile?

other than above, nothing related to cracking user root password and
your post, all the way back to 2014/04/01 - 1504 hrs.
[ have been following longer, but lost drive due to fedora and lvm. :=( ]

some links that may help;

   http://openwall.info/wiki/
   http://openwall.info/wiki/john
   http://www.openwall.com/lists/

tho i could offer to pass along your problems to list, i do believe
you should mailto:john-users-subscribe@xxxxxxxxxxxxxxxxxx or pull up
the 'list' page above to join and see rest of lists offered.


-- 

The important thing is not to stop questioning.
 - Albert Einstein


CentOS GNU/Linux 6.8
KDE 4.3.4

peace out.

tc,hago.

g
.

=+=
The important thing is not to stop questioning.
 - Albert Einstein
=+=
Tired of having your microsoft os hacked?
Change to Linux os, used by microsoft hackers.
=+=
If Bill Gates got a dime for every time Windows crashes...
 ...oh, wait. He does. THAT explains it!
=+=
in a world with out fences, who needs gates.
=+=
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