PTR record question.

Re: PTR record question.

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Date:

Time:

hmmm..well, QDNS Pro is trying to set up the reverses automatically, but if
you're not authoritative for the domain, you should delete them.

However, it sounds like you *are* authoritative for the domain (s), so yes,
you would need to set up the reverse. It doesn't matter whether the ISP is
giving you a class C or one IP...if you're the primary DNS for that domain,
you need to provide the reverse.

DNS relates to domains...domains encompass ranges of IPs...so if the
upstream is providing you with the IPs, and they're not part of their
domain, then they're your responsibility.

IOW, you will need a PTR for you Primary DNS, since it's within the IP range
you're responsible for. And you'll need a PTR for your mailserver (s), or
other servers doing reverses to authenticate mail coming from your domain
will bounce it.

HTH
----- Original Message -----
From: "Brian Wallace" <brian@digitalgear.com>
To: "QuickDNS Talk" <quickdns-talk@lists.menandmice.com>
Sent: Sunday, March 19, 2000 7:51 PM
Subject: Re: PTR record question.

> Hi Andrew,
>
> Sorry I wasn't very clear. I have a "fractional" class C, of 14 ip
> addresses and several domain names. I'm providing the primary and
> secondary name service with QDNS Pro. Since its not a "full" class C
> my service provider is not set up to delegate the reverse domains to
> me. Hopefully this will change soon when he takes a look at RFC 2317.
> I inherited this setup from my predecessor and I noticed that he has
> some reverse domains entered in QDNS Pro. My question is, are they
> just being ignored since my upstream provider currently takes care of
> the "reverse domains." Are they even necessary?
>
> Thanks
>
> Brian
> Digital Gear
>
> >it's probably a good idea to have PTR record mapped to your DNS...but
> >you're saying the ISP is providing DNS, so why are you using QuickDNS? as
a
> >primary or secondary?
> >
> >If you're providing primary DNS, then YOU have to create the reverse
domain
> >in QDNS (actually, it will create it for you, but you still might need to
> >add the PTR for the DNS).
> >
> >If you're providing secondary DNS, then you wouldn't need to worry about
> >thePTR records (the ISP should be taking care of the reverse and
configuring
> >it properly).
> >
> >PTR records ARE essential for mailservers and routing devices, but not
much
> >else.
> >----- Original Message -----
> >From: "Brian Wallace" <brian@digitalgear.com>
> >To: "QuickDNS Talk" <quickdns-talk@lists.menandmice.com>
> >Sent: Sunday, March 19, 2000 6:39 PM
> >Subject: PTR record question.
> >
> >> Hi,
> >>
> >> I still have a lot to learn about DNS and I have a question I can't
> >> find the answer to. I'm in one of those situations where I have
> >> subnet smaller than a class c assigned to me. My service provider is
> >> currently taking care of the PTR records for me. My question is do I
> >> need to have any sort of PTR record entered into my primary or
> >> secondary name servers which are running QDNS Pro. (By the way after
> > > searching this mailing list I will be showing my service provider RFC
> > > 2317 <http://www.faqs.org/rfcs/rfc2317.html. Hopefully I will be able
> >> to run my own reverse records soon.)
> > >
> > > Thanks for your time and have a great day!
> > >
> > > Brian
> > > Digital Gear
> > >
>
>

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