From owner-freebsd-questions Mon Aug 3 16:01:24 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id QAA26134 for freebsd-questions-outgoing; Mon, 3 Aug 1998 16:01:24 -0700 (PDT) (envelope-from owner-freebsd-questions@FreeBSD.ORG) Received: from mail.IDFW.COM ([207.86.246.2]) by hub.freebsd.org (8.8.8/8.8.8) with SMTP id QAA26017 for ; Mon, 3 Aug 1998 16:01:01 -0700 (PDT) (envelope-from frankg@idfw.com) Received: from fast1.dfw.com [207.136.52.91] by mail.IDFW.COM (SMTPD32-4.04) id A126F6018E; Mon, 03 Aug 1998 19:00:54 EDT Message-ID: <001801bdbf32$6b8cc6e0$0200a8c0@fast1.dfw.com> From: "Frank Griffith" To: Subject: Security Date: Mon, 3 Aug 1998 17:59:49 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.2106.4 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.2106.4 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG I have FreeBSD 2.2.6 running and I connect to the Internet using a dynamic connection. For kicks, I run Apache 1.3.0 web server on this same unit. It appears that while I've been testing my server, some bozo came in and used sendmail to send some rough and threatening e-mail to someone. My ISP even cancelled my account until I proved I had nothing to do with it. If someone came in, unathorized that is, and used my mail server to send mail, which log file would show me this intrusion? How can I prevent this from happening again? There is a moral to this story! When you think abusing someone else's system is fun and makes you feel superior... think about how I lost a couple of days billings (that's how I pay my rent, ya know!) because of this snafu, and ask yourself how would you feel coming up a couple of hundred short for the month just because some bozo sent some trawdry e-mail through your system. Thanks pal! To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message