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Date: Sun, 21 Aug 2011 11:51:25 -0500
From: Richard Miles <>
Subject: Re: MPI / OpenMPI

Thanks Solar Designer. I don't have a specific session value for my
brute-force so I don't know if it does difference, but john --status
give the progress status. At the moment I'm using a simple shell
script just to call john in loop with all combinations of Korelogic

Also, there is a way to see the current password tested as we see
pressing "enter"? As john is being called by a shell script the enter
doesn't work too.

Also, I will update my script to execute 3 john instances per time
since I have 4 cores and make sure to send killall -HUP john I load 3


On Sun, Aug 21, 2011 at 11:40 AM, Solar Designer <> wrote:
> groszek suggested, assuming that Richard is using MPI:
> On Sun, Aug 21, 2011 at 4:22 AM, groszek <> wrote:
>> killall -USR1 john
> But apparently Richard is using something else:
> On Sun, Aug 21, 2011 at 09:52:08AM -0500, Richard Miles wrote:
>> Thanks for suggestion, but it doesn't work as expected. It kills my
>> current john task and the next on the queue is still not responsive
>> with space bar...
>> ./ line 21: 14362 User defined signal 1   /tools/jtr/john
>> --format=$1 -w:/home/rick/myrockyou-75.txt -rules:$i $2
> Richard - you may send all john's a SIGHUP:
> killall -HUP john
> which makes them update their .rec files right away, then query their
> status with:
> john --status=SESSION-NAME
> This way, you'll see the progress of each of them.
> Obviously, this is not very convenient if your only reason to run
> multiple john's was to use multiple CPUs.  Improvements in this area are
> planned.  Currently, you can avoid running multiple john's yet use
> multiple CPUs for some hash types with an OpenMP-enabled build.
> Alexander

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