Date: Fri, 24 Sep 1999 07:02:14 -0700 (PDT) From: David Wolfskill <dhw@whistle.com> To: current@FreeBSD.ORG, freebsd@gndrsh.dnsmgr.net Subject: Re: On hub.freebsd.org refusing to talk to dialups Message-ID: <199909241402.HAA04384@pau-amma.whistle.com> In-Reply-To: <199909241000.DAA02083@gndrsh.dnsmgr.net>
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>From: "Rodney W. Grimes" <freebsd@gndrsh.dnsmgr.net> >Date: Fri, 24 Sep 1999 03:00:55 -0700 (PDT) >Another thing that ISP coulds start doing (we are in process with >this now, but on a monitoring only basis, instead of a deny we >just log them) is to block all outbound from AS tcp 25 setup packets. Not quite sure I follow this. >This prevents your customers from being something that could get you >on the RBL or the DUL MAP for bad behavior, it also inforces the use >of your smart host relay, as it/they is/are the only way to get a >tcp port 25 setup completed. About the only positive thing I have to say about the DUL is that Vix stated that entries are placed on it at the request of the custodians of the netblock in question. >Do you know about the RBL? How do you feel about it? We are using >it via DNS and BGP on a test basis right now. I have had legitimate >important mail blocked at Freebsd.org due to the source being on the >RBL, but that is a price I am willing to pay. I'm far more comfortable with the use of the RBL than the DUL. Indeed, my externally-visible home SMTP server uses the RBL (but not the DUL). Cheers, david -- David Wolfskill dhw@whistle.com UNIX System Administrator voice: (650) 577-7158 pager: (888) 347-0197 FAX: (650) 372-5915 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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