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Message-Id: <130795967-a77161ad0a60fb2defb5ccffde7a8d41@pmq5.m5r2.onet>
Date: Fri, 17 Jul 2015 21:02:55 +0200
From: rysic <rysic@...pl>
To: "john-users@...ts.openwall.com" <john-users@...ts.openwall.com>
Subject: Re: Re: restore difficult zip password
This "-node=x/y" is very very interesting :-)
How it works? It needs NFS share? Or it can have files stored locally and is just counting x/y job of whole cracking?
Does node option needs special compiling option, like MPI, or default?
Kamil
W dniu 2015-07-17 20:58:58 użytkownik rysic <rysic@...pl> napisał:
>
>
> On 2015-07-17 15:24, rysic wrote:
> > So, I started thinking about some cluster sollution but MPI is not
> > working so good for me... :-/ Some hosts in cluster are working and
> > some not.
> >
> > But i red here http://openwall.info/wiki/john/parallelization tis:
> > "multiple instances of JtR can be run from within the same directory,
> > sharing the same john.conf, john.pot, and other files just fine -
> > this is a feature. "
> >
> > Soes this mean that I can install John The Ripper (1.8) in many
> > computers, share some directory, put there .pot .zip .hash file and
> > start all of them to work? And they will share this .pot file and
> > work quite symilar to cluster?
>
> They will not distribute work automatically, no. That phrase just means
> john will ensure file locking etc. and the Jumbo "pot sync" feature will
> drop salts that were cracked with an other process.
>
> You should fix your MPI. When running MPI, using a shared (eg. NFS)
> working directory is required for good results. Other than that,
> installation/build is trivial.
>
> Without MPI, you can do the same distrbution manually using "-node=x/y"
> option. If you have, say, 7 nodes you will start the crack on node 1 as
> "-node=1/7" and on node 2 as "-node=2/7" and so on. This works with all
> cracking modes (except regex I think, that one is experimental).
>
> magnum
>
>
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