Date: Mon, 16 Dec 1996 14:01:55 +0200 (EET)
From: mika ruohotie <bsdsec@shadows.aeon.net>
To: ctkwan@cs.hku.hk (Doug Kwan ~{9XUq5B~})
Cc: cschuber@uumail.gov.bc.ca, security@freebsd.org
Subject: Re: mail bomb!
Message-ID: <199612161201.OAA11649@shadows.aeon.net>
In-Reply-To: <Pine.SUN.3.91.961216104517.24119A-100000@champion> from Doug Kwan ~{9XUq5B~} at "Dec 16, 96 10:47:01 am"
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> On Sun, 15 Dec 1996, Cy Schubert - ITSD Open Systems Group wrote:
> Unfortunately, that jerk uses fake e-mail address. He sent mail
> in our support account's name. We cannot filter mails from our
> support account.
you are using sendmail, right?
you should atleast have this in your /etc/sendmail.cf
O PrivacyOptions=authwarnings,needmailhelo,needexpnhelo,novrfy
and then run it with loglevel 12, that should atleast help you from
tracking down from where he's connecting, assuming you have no clue.
but still, the administrative messages should _always_ be authenticated.
> -Doug
mickey
--
mika ruohotie mika@aeon.net
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