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Date:      Thu, 8 Jul 2010 03:57:49 -0700
From:      George Davidovich <freebsd@optimis.net>
To:        freebsd-questions@freebsd.org
Subject:   Re: [6.3] Get e-mail when CTRL-ALT-DEL is used?
Message-ID:  <20100708105749.GA34771@marvin.optimis.net>
In-Reply-To: <rs8b36521ebsv6n8rfq9797gjbn1pdg2lm@4ax.com>
References:  <rs8b36521ebsv6n8rfq9797gjbn1pdg2lm@4ax.com>

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On Thu, Jul 08, 2010 at 12:12:27PM +0200, Gilles wrote:
> This is on a remote 6.3 host: I'd like to get an e-mail if a user hits
> the CTRL-ALT-DEL to reboot the server.
> 
> Googling told me that the use of the three-key combo can be
> enabled/disabled when compiling a new kernel, but not how to manage
> this feature when it's enabled in a running kernel.
> 
> Is there a configuration file somewhere that would let me add e-mail
> support for this action?

Assuming you want to know whether the server was rebooted (as opposed to
whether a user invoked a given key combination), adding something
along the lines of the following to root's crontab(5) should suffice:

  @reboot echo "`hostname` rebooted" \
  | mail -s "`hostname` rebooted" gilles@example.org

-- 
George



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