Date: Wed, 26 Aug 1998 10:18:43 -0700 (PDT) From: David Wolfskill <dhw@whistle.com> To: freebsd-questions@FreeBSD.ORG, pat.groce@state.sd.us Subject: Re: SPAM HELP Message-ID: <199808261718.KAA28101@pau-amma.whistle.com> In-Reply-To: <5D2C95997022D21187350008C7F4CF7902EDFB@ESPR1SRV5>
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>From: pat.groce@state.sd.us >Date: Wed, 26 Aug 1998 11:15:43 -0500 >Our freebsd box is currently being used for redirected spam messages. >Sometimes 6000-7000 messages a day! Any idea on how i can prevent this? >Is there a web page or other resource covering this topic? On >freebsd.org i found some stuff on filtering inbound spam but nothing on >this redirection problem. Either upgrade to sendmail 8.9.1 (note that you'll need to explicitly specify machines for which you *want* to relay mail), implement Claus Assman's anti-relaying rulesets (this is what I did at home, running sendmail 8.8.8), or implement a different MTA that handles the non-relaying. In addition to these, you might want to consider implementing Wietse Venema's "TCP Wrappers" package. In particular, sendmail can be compiled with support to make use of the TCP Wrappers libraries, and thus log "interesting" events. (I also did this at home.) david -- David Wolfskill UNIX System Administrator dhw@whistle.com voice: (650) 577-7158 pager: (650) 371-4621 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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