Date: Mon, 18 Oct 1999 19:21:31 -0400 (EDT) From: "Jasper O'Malley" <jooji@nickelkid.com> To: Leif Neland <leifn@neland.dk> Cc: freebsd-isp@FreeBSD.ORG Subject: Re: named telling the truth, but not the whole truth. Message-ID: <Pine.BSF.4.10.9910181901430.6691-100000@cornflake.nickelkid.com> In-Reply-To: <Pine.BSF.4.05.9910182221120.26158-100000@arnold.neland.dk>
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On Mon, 18 Oct 1999, Leif Neland wrote: > Is there a way to tell bind8 not to tell the world the same as it tells a > local server? > > Specifically, I have some hosts, which do dialin and pick up their mail by > ETRN. So their dns is: > some.dom MX 100 our.mastermail.server. > some.dom MX 10 their.dialin.server. > > Is there a way not to announce the lowest MX-record to the world, but only > to our.mastermail.server? Nope. What you want to do is probably best served through the use of a mailertable, if you're using sendmail on our.mastermail.server. Compile a sendmail.cf with FEATURE(mailertable, `hash -o /etc/mail/mailertable'), and create a text file /etc/mail/mailertable to map domains to intended destination hosts: some.dom smtp:[their.dialin.server] The angle brackets in the file suppress MX lookups, and cause your mail server to forward directly to the host in question. Compile the mailertable into a hash table with: makemap hash /etc/mail/mailertable.db < /etc/mail/mailertable and restart sendmail. Then you only need to put the MX record pointing to our.mastermail.server in the zone file for that customer's domain, and sendmail will handle the rest. Cheers, Mick To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message
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