Path: csiph.com!aioe.org!news.etla.org!nntp-feed.chiark.greenend.org.uk!ewrotcd!usenet-its.stanford.edu!usenet.stanford.edu!not-for-mail
From: Reindl Harald <h.reindl@thelounge.net>
Newsgroups: comp.protocols.dns.bind
Subject: Re: [DoD Source -- ssshhhh Top Secret] Re: Dumb Question is an A or AAAA record required?
Date: Thu, 9 Jul 2020 17:03:29 +0200
Organization: the lounge interactive design
Lines: 45
Approved: bind-users@lists.isc.org
Message-ID: <mailman.682.1594307375.942.bind-users@lists.isc.org>
References: <f53577847c73438cb8ec88636317b06b@mail.rrcic.com> <9309970d-4d8d-c6f8-f37b-297b5134eff7@thelounge.net> <ddae9ac4-1339-36b0-64de-f56bd7d214d6@nixmagic.com> <40fe75be-4666-4f1e-2833-5051f4f567ac@thelounge.net>
NNTP-Posting-Host: lists.isc.org
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit
To: bind-users@lists.isc.org
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0
In-Reply-To: <ddae9ac4-1339-36b0-64de-f56bd7d214d6@nixmagic.com>
Content-Language: en-US
Precedence: list
Xref: csiph.com comp.protocols.dns.bind:15959



Am 09.07.20 um 16:57 schrieb Michael De Roover:
> You do have control over that.. 

i have, but not everybody has

> kind of. As far as I'm aware hosting
> providers generally offer control over PTR records in their admin
> panels. 

but it still has nothing to do with your domain by definition, the PTR
could be anything

> However delegation of them to your own authoritative name
> servers is.. complicated. A lot more so than delegation of forward
> lookups would be anyway (A, AAAA, MX, yada yada). Apparently the hosting
> provider would have to delegate (as far as I understand it's like
> sharing?) control over just that/those IP(s), and remember to revoke it
> after you leave their hosting services too. See
> https://www.arin.net/resources/manage/reverse or
> https://www.ripe.net/manage-ips-and-asns/db/support/configuring-reverse-dns
> for more information... But I don't understand this part very well myself.

the ptr-zone of our /24 rnage is delegated to my nameserver for many
years, you just need to talk to the guys far after "customer support"

> Whichever methods are available, for email in particular it's advisable
> to publish a PTR record of some kind. IRC networks may also ask to do
> this before they apply your domain as your vhost (and A and PTR have to
> match). On Freenode at least they do.

i know that all, thanks

but how does that change anything in the simple fact that "Would the
lack of A records affect pointer records? Seems like it would" given
that the PTR zone is a dns zone like anything else

> On 7/9/20 3:36 PM, Reindl Harald wrote:
>> and typically you have no control over PTR records at all given that
>> they have nothing to do with your domain
>>
>> while it's smart (at least when you want to send mails) that your IP has
>> a sane PTR and that the name maps back to the IP the dns system couldn't
>> care less