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How-to: John the Ripper on a Ubuntu 10.04 MPI Cluster

“In this post I show step-by-step how you can setup your own
“Super computer cluster” using Ubuntu MPI Cluster from multiple
machines with the goal of bruteforcing strong encrypted passwords
with John the Ripper for academic purposes.

“Owners of quad core machines will also benefit from this setup
as the “john” binaries found in the Ubuntu Repositories are
compiled to run on only one core. I managed to decrease the time
required to crack password hashes using this setup.”

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