Date: Sun, 20 Sep 2015 22:35:37 +0200 From: Patrick Proniewski <patpro@...pro.net> To: john-users@...ts.openwall.com Subject: best setup to crack format nt or nt2 Hello, I plan to make some kind of password audit at work. The purpose is to warn users about weak password, when they use one. I'm going to dump Active Directory accounts (2008 R2), convert to some kind of GECOS format and launch John on the resulting file. I've made some tests already: LM hash is unused, the other hash is recognized as nt and nt2. Is there any difference between those too formats? Apparently, I can use either --format=nt or --format=nt2 with same results. I would like to run John for 24 hours on a decommissioned blade server, so I got 8 cpu cores, and lots of RAM, no GPU at all. What would be the best way to use most of this hardware? If I'm not mistaken, nt/nt2 can't get OpenMP benefits, so I could have to split the password file into 8 chunks, or use fork, or any other parallelism setup. What would be best here? Any hint appreciated! thank, Patrick
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