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Re: Panther, shared internet, and QDNS

From: Michael Wise
Date: Tuesday, December 23, 2003
Time: 4:43:54 pm

At 2:00 PM -0600 12/23/03, Len Conrad wrote:

>>http://www.dnsreport.com/tools/dnsreport.ch?domain=greenbuilder.com
>>
>>1) One of the name servers (ns3.greenbuilder.com. [24.234.47.110])
>>listed at the parent servers is not responding.
>
>That's a fact, not an opinion.


Indeed. I posted it as fact; not as opinion. BTW, it was a fact
yielded by dnsreport.

>
>>2) ERROR: One or more of the nameservers listed at the parent
>>servers are not listed as NS records at your nameservers. The
>>problem NS records are:
>>ns2.one4allhosting.com.
>
>delegation error is a fact, not an opinion


Indeed. I posted it as fact; not as opinion. BTW, it was a fact
yielded by dnsreport.

>
>>3) Duplicate MX records WARNING: You only have duplicate MX records.
>
>Again, a BS warning that sounds like something to be fixed, an
>error, and the warning misstates what it has detected.
>
>There are no duplicate MX records. There is a "record set" of two MX
>records, and record sets are are perfetly legal, requiring no
>warning or fix.
>
>>This means that mailservers may try delivering mail to the same IP
>>more than once.
>
>fact. However, to dribble on with opinions about why it's bad,
>wasteful, etc is silly.


Indeed. I posted it as fact; not as opinion. BTW, it was a fact
yielded by dnsreport.



>> The duplicate MX records are:
>>mail.greenbuilder.com. and mail.greenbuilder.com. both resolve to
>>205.238.129.197.
>
>This nonsensical sentence is pointing out a problem? The correct
>statement of what DNSReport is, I think, trying to say is:
>
>"2 MX records of different preference values have the same hostname
>as mail destination".
>
>That's a fact. Leave it at that.


if you look at the dnsreport report as a whole (instead of quoting
snippets out of context), it's plainly obvious what they're talking
about.



>>Len and Jeremy: if there anything "wrong at worst and misleading ,
>>confusing logorrhea at best" with that bit of data? Is it worth
>>knowing?
>
>not really. a domain name has an A record. is that worth commenting on?
>
>>In a span of the 15-20 seconds it took to go to www.dmsreport.com,
>>type in greenbuilder.com, hit enter, and wait for the results...we
>>have a birds eye view of several issues (all of which spending a
>>couple of minutes doing whois's and digs will confirm.
>
>I said DNSReport is useful, and but specifically screwed up in their
>report of "missing glue" and generally misleading and confusing with
>its "opinions" and interpretations of the facts.


They screwed up nothing. Their "missing glue" warnings can be
misleading to the untrained, but there is nothing wrong with the
report...and in fact, the report yields several useful nuggets. Is it
as thorough, precise, and explanatory as your expert analysis?
Absolutely not. However, it is an extremely useful tool...and
although its reports may at times be confusing, I have never seen
them to be flat out wrong.


>
>You have now widened the discussion to another specific point, and
>the "opinions" of DNSReport on that test result show, again, what is
>ill-advised about DNSReport's "opinions". Obviously, the DNS
>experts you think use DNSReport don't need anything but the facts,
>so DNS Experts' offering opinions and interpretations confuse the
>DNS novices.


I can't speak to what novices think one way or another about
dnsreport. However, I do recognize that such tools (and dns admin in
general) are not targeted at novices.

>
>>I couldn't make a better case and point.
>
>It makes my point, as well. DNSReport is useful,

Yes, it's only been within the last 2-3 email posts where you admit
it is useful. Prior to that, you made no such commentary...and simply
attacked it. Now you say it's "useful" and act as if that's been your
stated position all along (when it has not). I'm glad we at least
agree on it being useful.


> but it is wrong about glue records, and it used to be wrong about
>it usage of "root servers" (and may still be), and its opinions are
>mixed in with the facts. The opinions carry no weight with DNS
>experts, and confuse DNS novices (the bulk of the visitors, imo).


So now you speak for all dns experts around the world?



--Mike



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