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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