Beowulf in Enterprise Environments

Robert G. Brown rgb at
Wed Jun 18 21:05:59 EDT 2003

On Wed, 18 Jun 2003, Matt Phillips wrote:

> On Tue, 17 Jun 2003, Robert G. Brown wrote:
> >crack (the venerable Unix password cracking program) can be run
> >embarrassingly parallel over a network and in fact has been programmed
> >to do so on request for a rather long time now.
> Sounds reasonable that it can be made embarrassingly parallel. However, its 
> creator Alec Muffett continue s to deny that it can/should be parallelized.
> (Micsellany 
> section Q 5&6 )

You mean the part of the README where network mode is described?  As in:
%< Snip ==============
* conf/network.conf

     This is the file used to configure Crack for network running; this file
     contains lines, each of which has several fields:



        o host
          This is the name of the host to which Crack should "rsh", in order
          to despatch a job. There can be several instances of the same
          hostname in the file, if desired, in order to dispatch more than
          one job to a given host (if it has more than one CPU, for
%< Snip ==============

Sounds like integrated, embarrassingly parallel operation to me...

Works that way too, back when I used to run crack on passwd files;-)


Robert G. Brown	             
Duke University Dept. of Physics, Box 90305
Durham, N.C. 27708-0305
Phone: 1-919-660-2567  Fax: 919-660-2525     email:rgb at

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