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Date: Fri, 21 Apr 2006 20:09:51 +0400
From: Solar Designer <solar@...nwall.com>
To: john-users@...ts.openwall.com
Subject: Re:  feature request -nolog option

On Fri, Apr 21, 2006 at 02:18:19PM +0000, Phantom wrote:
> Wondering if it you would consider implementing a -nolog switch?

Yes, this was already requested several times and it's on the wish list.
I am just unsure what the proper syntax for the command-line option
should be.  Maybe it should allow one to do more than just disable the
log - say, also specify the log file name and/or what is to be logged.
Alternatively, this could be a john.conf setting to keep the number of
command-line options sane.

This is definitely not something I will do in 1.7.0.x, but it might be
done in 1.8.

> Recently ran some wordlists with rules and logfile grew to +3 GB in a matter of
> 5 min..which I find a little exessive..

You must be abusing the wordlist rule preprocessor. ;-)  Maybe John
should detect such special cases - for example, when the number of
preprocessed wordlist rules is over 1 million, log just one message
stating that there are too many rules and then not log the rules
themselves.

Meanwhile, on a Unix-like system you can pre-create your would-be log
file as a symlink to /dev/null to effectively disable logging.

-- 
Alexander Peslyak <solar at openwall.com>
GPG key ID: B35D3598  fp: 6429 0D7E F130 C13E C929  6447 73C3 A290 B35D 3598
http://www.openwall.com - bringing security into open computing environments

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