Mailing List ecs-isp@2rosenthals.com Archived Message #495

From: "Steven Levine" <ecs-isp@2rosenthals.com> Full Headers
Undecoded message
Subject: Re: [eCS-ISP] Odd dig behavior
Date: Mon, 22 May 2023 16:37:47 -0700
To: "eCS ISP Mailing List" <ecs-isp@2rosenthals.com>

In <list-7174456@2rosenthals.com>, on 05/22/23
   at 12:02 PM, "Lewis G Rosenthal" <ecs-isp@2rosenthals.com> said:

Hi there,

>This intrigued me, but I was otherwise occupied yesterday.

I happens. :-)

>{0}[j:\] dig -v
>DiG 9.8.1-OS2-9.8.1-1.oc00

>{0}[j:\] dig  +nssearch  pmoylan.org
>SOA ns1.wiz.net.au. dns.wiz.net.au. 2019030902 10800 3600 604800 300 from
> server 203.30.197.11 in 213 ms.
>SOA ns1.wiz.net.au. dns.wiz.net.au. 2019030902 10800 3600 604800 300 from
> server 43.229.63.26 in 219 ms.

That's good news.  It could mean we have a minor porting nit.

>(Yes, it's old, but it works.)

Same here.  I use 9.11.28 because it worked until now.

>It should also be noted that:

>dig pmoylan.org

>returns data from my local DNS, though I can't rightly tell how long that
> may have been cached.

You can always use

  dig @8.8.8.8 pmoylan.org

to bypass your cache, but the results won't differ.

>Interesting hang.

Definitely.  It tells me no one has ever run dig v9.11.36 or v9.11.27.

>Now, while pmoylan.org does not seem to have an A record or a CNAME (or
>an  AAAA), mail.pmoylan.org does have a CNAME record, and this is listed
>as  Peter's primary MX. (It is generally considered not good practice to
>have an  MX record pointing to a CNAME rather than an A, but some systems
>allow it.)  mail.pmoylan.org seems to be a CNAME for pmoylan.duckdns.org.
>Likewise,  ftp.pmoylan.org is another CNAME for the same host.

Peter's situation is unusual.  I appears that duckdns's name servers are
the authority for mail.pmoylan.org and wiz.net.au is the authoriy for
pmoylan.org.  At least that what dig soa is telling me.

>Without seeing a dump of his zonefile,

Peter is not running bind yet.  These responses are coming from his ISP's
and duckdns's name servers.

Steven

--
----------------------------------------------------------------------
"Steven Levine" <steve53@earthlink.net>  Warp/DIY/BlueLion etc.
www.scoug.com www.arcanoae.com www.warpcave.com
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