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  • [Non-DoD Source] Re: Dumb Question is an A or AAAA record required?

    From DeCaro, James John (Jim) CIV DISA F@21:1/5 to Mark Andrews on Thu Jul 9 13:16:05 2020
    To: @lbutlr (kremels@kreme.com)
    Copy: Bind-users@lists.isc.org (bind-users)

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    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Matus UHLAR - fantomas@21:1/5 to All on Thu Jul 9 15:43:18 2020
    On 09.07.20 13:16, DeCaro, James John (Jim) CIV DISA FE (USA) via bind-users wrote:
    Would the lack of A records affect pointer records? Seems like it would.

    pointer records are independent on A/CNAME records and irelevant in thie
    case.

    -----Original Message-----
    From: bind-users <bind-users-bounces@lists.isc.org> On Behalf Of Mark Andrews >Sent: Thursday, July 9, 2020 8:56 AM
    To: @lbutlr <kremels@kreme.com>
    Cc: bind-users <Bind-users@lists.isc.org>
    Subject: [Non-DoD Source] Re: Dumb Question is an A or AAAA record required?

    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@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 11.22.33.444

    (I am pretty sure this is *technically* allowed, but is it really OK to do or are there reasons not to do this?)

    --
    Matus UHLAR - fantomas, uhlar@fantomas.sk ; http://www.fantomas.sk/
    Warning: I wish NOT to receive e-mail advertising to this address.
    Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu.
    Quantum mechanics: The dreams stuff is made of.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)