On Saturday 26 January 2002 12:07, guy keren wrote: > > On Sun, 11 Jun 2006, Michael Green wrote: > > > Is there an easy way to split a single john process into several > > (smaller?) tasks each running ona separate CPU in order to speed up > > the cracking process? > > I've got a dozen of Opteron cores idling here... >
Assuming this is a academic cracking process, then read john's manual and FAQ. John the Ripper password cracker, version 1.7.0.1 Copyright (c) 1996-2006 by Solar Designer and others Homepage: http://www.openwall.com/john/ Usage: john [OPTIONS] [PASSWORD-FILES] --single "single crack" mode --wordlist=FILE --stdin wordlist mode, read words from FILE or stdin --rules enable word mangling rules for wordlist mode --incremental[=MODE] "incremental" mode [using section MODE] --external=MODE external mode or word filter --stdout[=LENGTH] just output candidate passwords [cut at LENGTH] --restore[=NAME] restore an interrupted session [called NAME] --session=NAME give a new session the NAME --status[=NAME] print status of a session [called NAME] --make-charset=FILE make a charset, FILE will be overwritten --show show cracked passwords --test perform a benchmark --users=[-]LOGIN|UID[,..] [do not] load this (these) user(s) only --groups=[-]GID[,..] load users [not] of this (these) group(s) only --shells=[-]SHELL[,..] load users with[out] this (these) shell(s) only --salts=[-]COUNT load salts with[out] at least COUNT passwords only --format=NAME force ciphertext format NAME: DES/BSDI/MD5/BF/AFS/LM --save-memory=LEVEL enable memory saving, at LEVEL 1..3 Now, I don't know what mode you're running John in, but, this is what I did for TAU: Split the 55k user:password entries into 5.5k entries, and ran it on 10 cpus. I used wordlist crack (gave it a few dictionaries plus the /etc/passwd format of the LDAP directory itself - with the full names of the users, and other details about them...). --Ariel -- Ariel Biener e-mail: [EMAIL PROTECTED] PGP: http://www.tau.ac.il/~ariel/pgp.html ================================================================= To unsubscribe, send mail to [EMAIL PROTECTED] with the word "unsubscribe" in the message body, e.g., run the command echo unsubscribe | mail [EMAIL PROTECTED]
