From mboxrd@z Thu Jan  1 00:00:00 1970
From: Steve Grubb <sgrubb@redhat.com>
Subject: Re: auditing account lockouts
Date: Mon, 10 Oct 2011 10:13:05 -0400
Message-ID: <201110101013.06113.sgrubb@redhat.com>
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On Monday, October 10, 2011 09:54:00 AM Steve M. Zak wrote:
> Hi,
> 
> Through experimentation and per Red Hat tech support when the deny=x switch
> is set in /etc/pam.d/login as below
> 
> auth       required     pam_tally2.so deny=5 onerr=fail
> 
> the lockout happens at 5 failed attempts, but the audit trail does not
> record it until the next try.

The man page says that the account lockout occurs when the tally _exceeds_ the deny 
parameter. To lockout on 5 failed attempts, use deny=4.

-Steve