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Message-ID: <CAFMma9NkuMsfjeMX38v2XTHKzqs4Y_GL+kYMKL4D+Z_M-nAE_Q@mail.gmail.com>
Date: Mon, 22 Aug 2011 08:43:17 -0500
From: Richard Miles <richard.k.miles@...glemail.com>
To: john-users@...ts.openwall.com
Subject: Re: MPI / OpenMPI
Hi Solar Designer
> This discussion thread is/was about parallel processing.
Sorry about that.
>
>> Also, there is a way to see the current password tested as we see
>> pressing "enter"?
>
> No, this information is not stored in .rec files.
>
>> As john is being called by a shell script the enter doesn't work too.
>
> It would work if you let those john's run in the foreground (as long as
> you run just one at a time anyway), but apparently you background them
> (such as by ending the shell commands with "&")?
You are right, I call them with "&" on the end. What should be a
better solution in this case?
>
>> Also, I will update my script to execute 3 john instances per time
>> since I have 4 cores
>
> Why not run 4 instances then (or even 8 in case you also have 2 logical
> CPUs per core, which is common)? If you're worried about impact on your
> computer's interactive response time, then the "Idle = Y" setting
> (default) should take care of that just fine.
I have a quad core computer, my understanding was that I had just 4
cores. For example, when I run pyrit it just detect 4 CPUs and 1 GPU.
But, I will try. There is a way to know in which processor a john
instance is running?
I will also check the "idle = Y", thanks for the heads-up.
>
> Be sure to use separate --session names for the 4 instances.
I will.
>
>> and make sure to send killall -HUP john I load 3 new...
>
> Sorry, I don't understand what you mean here. The HUP is only needed
> right before you query the --status.
Make sense. BTW, I found a nice page, it for sure is not helpful for
you, but was helpful for me and I guess may be helpful for others so
I'm sharing here. It describe the format of hash files that JtR
accepts per format.
http://pentestmonkey.net/cheat-sheet/john-the-ripper-hash-formats
BTW I have to update, they have tons of hashes that my version doesn't
support. For example, what is a ssh hash?
Talking again about GPU maybe you should consider NTLMv2 hashes, they
are a bit hard to crack, in special because of Windows password
complexity. I know you guys do a great job and has a lot of things to
do, so it's just a suggestion since I guess it's very common and may
benefict many users in real life.
Thanks
>
> Alexander
>
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