[30599] in North American Network Operators' Group
Re: lame delegations
daemon@ATHENA.MIT.EDU (Derek J. Balling)
Fri Aug 18 15:48:51 2000
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In-Reply-To: <Pine.LNX.4.21.0008181228090.24973-100000@catbert.rellim.com>
Date: Fri, 18 Aug 2000 12:45:38 -0700
To: "Gary E. Miller" <gem@rellim.com>,
Joshua Goodall <joshua@roughtrade.net>
From: "Derek J. Balling" <dredd@megacity.org>
Cc: nanog@merit.edu
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Errors-To: owner-nanog-outgoing@merit.edu
www ---> 10.0.0.2
ns1 ---> 10.0.0.2
servershostname ---> 10.0.0.2
10.0.0.2 ---> servershostname.domain.com
I think this is the situation Joshua is describing, where you might
rev-map to a server name (Whatever hostnames you assign locally to
your boxen), but where that hostname is NOT "ns1.domain.com")
At 12:33 PM -0700 8/18/00, Gary E. Miller wrote:
>Yo Joshua!
>
>On Fri, 18 Aug 2000, Joshua Goodall wrote:
>
>> c) not everyone wants the reverse to match the forward (is this an RFC
>> violation? I hope not :)).
>
>RFC 1912, Sec 2.1:
>
>" Make sure your PTR and A records match. For every IP address, there
> should be a matching PTR record in the in-addr.arpa domain. If a
> host is multi-homed, (more than one IP address) make sure that all IP
> addresses have a corresponding PTR record (not just the first one).
> Failure to have matching PTR and A records can cause loss of Internet
> services similar to not being registered in the DNS at all. Also,
> PTR records must point back to a valid A record, not a alias defined
> by a CNAME. It is highly recommended that you use some software
> which automates this checking, or generate your DNS data from a
> database which automatically creates consistent data."
>
>I have yet to hear a convincing argument why this RFC should be
>ignored. I have seen many problems when this is ignored.
>
>RGDS
>GARY
>---------------------------------------------------------------------------
>Gary E. Miller Rellim 20340 Empire Ave, Suite E-3, Bend, OR 97701
> gem@rellim.com Tel:+1(541)382-8588 Fax: +1(541)382-8676
