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Date: Fri, 4 Nov 2016 14:34:49 +0100
From: matlink <>
Subject: John does not fork as many times as I want

I'm using john-1.8.0-jumbo-1 to crack Linkedin password on a
64-core/512GB ram server.
I want john to fork many times, I'm then using the following command:

|$ john --fork=40 --format=Raw-SHA1-Linkedin
../UNZIPPED/linkedin/passwords.txt > linkedin.log|

After approx 5 minutes, john starts to fork and outputs:

|Node numbers 1-40 of 40 (fork)|

Even after waiting dozens of minutes, process monitoring only display 4
john forks:

|$ ps -ef | grep john | wc -l|

Is that an expected behavior or I am missing something?

Matlink - Sysadmin
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