[Non-DoD Source] Re: Dumb Question is an A or AAAA record required?
DeCaro, James John (Jim) CIV DISA FE (USA)
james.j.decaro3.civ at mail.mil
Thu Jul 9 13:16:05 UTC 2020
Would the lack of A records affect pointer records? Seems like it would.
"If you always do what you always did you will always get what you always got."
From: bind-users <bind-users-bounces at lists.isc.org> On Behalf Of Mark Andrews
Sent: Thursday, July 9, 2020 8:56 AM
To: @lbutlr <kremels at kreme.com>
Cc: bind-users <Bind-users at lists.isc.org>
Subject: [Non-DoD Source] Re: Dumb Question is an A or AAAA record required?
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At this stage one still needs A records to be reachable by everyone. One should also ensure you are reachable over IPv6 as lots of the world behind IPv6 only links as their ISPs don’t have enough IPv4 addresses for every one. Instead they have to use some form of IPv4 as a service which is significantly more expensive to operate compared to straight routers.
> On 9 Jul 2020, at 22:22, @lbutlr <kremels at kreme.com> wrote:
> Given a domain that is hosted and used for email and web, is an A record for that domain actually required?
> That is, if bob.tld is hosted by example.com can you simply have
> NS ns1.example.com
> NS ns2.example.com
> MX mx.example.com
> www CNAME Caution-www.example.com
> Without specifying
> A 126.96.36.1994
> (I am pretty sure this is *technically* allowed, but is it really OK to do or are there reasons not to do this?)
> And there were all the stars, looking remarkably like powered
> diamonds spilled on black velvet, the stars that lured and
> ultimately called the boldest towards them…
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