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Re: Panther, shared internet, and QDNS
From: Len Conrad
Date: Tuesday, December 23, 2003
Time: 12:01:08 pm
>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.
>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
>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.
# dig greenbuilder.com mx
; <<>> DiG 9.2.3rc3 <<>> greenbuilder.com mx
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 54928
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 4, ADDITIONAL: 2
;; QUESTION SECTION:
;greenbuilder.com. IN MX
;; ANSWER SECTION:
greenbuilder.com. 86400 IN MX 20 mail.greenbuilder.com.
greenbuilder.com. 86400 IN MX 10 mail.greenbuilder.com.
> Although technically valid
then stop there. ah no, we must continue....
>, this is very confusing
opinion
>and wastes resources.
opinion. It wastes nothing. and even if wasted something, it would be such
a trivial amt of anything, spread so widely, that it would be immeasurably
small. DNSReport splits frog hairs as if they were major issues.
> 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.
>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.
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 couldn't make a better case and point.
It makes my point, as well. DNSReport is 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).
Len
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