From owner-freebsd-isp Mon May 24 6:24:33 1999 Delivered-To: freebsd-isp@freebsd.org Received: from nfol.com (unknown [209.177.34.120]) by hub.freebsd.org (Postfix) with ESMTP id C517F15320 for ; Mon, 24 May 1999 06:24:25 -0700 (PDT) (envelope-from dan@nfol.com) Received: by nfol.com (Postfix, from userid 1000) id 642E37A101; Mon, 24 May 1999 09:21:54 -0400 (EDT) Subject: Re: BIND and subnetted in-addr.arpa domains In-Reply-To: <19990524085600.A20471@intrepid.net> from Mark Conway Wirt at "May 24, 1999 8:56: 0 am" To: mark@intrepid.net (Mark Conway Wirt) Date: Mon, 24 May 1999 09:21:54 -0400 (EDT) Cc: freebsd-isp@freebsd.org X-Mailer: ELM [version 2.4ME+ PL43 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Length: 1133 Message-Id: <19990524132154.642E37A101@nfol.com> From: dan@nfol.com (Dan Harnett) Sender: owner-freebsd-isp@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org > We have a dedicated access customer who wants to run reverse > DNS on the subnet that we're routing to him. We're running BIND 4.9.X, > and I've looked though the BOG and man pages -- this doesn't seem > possible. > Is it possible in BIND 8? This may be a good reason to upgrade if it is. This is possible in bind 4.9.x as well. AFAIK, there is no easy way to indicate what ip address the subnet starts on. There are several ways to do this, and the one that seems the easiest to administrate is to assign the PTR records to a CNAME, then assign a NS for that CNAME. Here's an example for a subnet in a class C, 10.0.0.0: 32 IN PTR 32.subnet.0.0.10.in-addr.arpa. 33 IN PTR 33.subnet.0.0.10.in-addr.arpa. 34 IN PTR 34.subnet.0.0.10.in-addr.arpa. 35 IN PTR 35.subnet.0.0.10.in-addr.arpa. 36 IN PTR 36.subnet.0.0.10.in-addr.arpa. ... subnet IN NS ns.other.server.com. IN NS ns2.other.server.com. On the customer's side, he/she will have to have a zone setup for the domain subnet.0.0.10.in-addr.arpa. I am unaware of an easier way to do this. Perhaps bind8 has the ability to make this easy. Dan Harnett To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message