OT: dot org domain resolution
Ken A
ka at pacific.net
Mon Oct 22 23:00:01 IST 2007
DAve wrote:
> Hugo van der Kooij wrote:
>> DAve wrote:
>>> This is the fastest response ML I am on, so I will bug you guys ;^)
>>> Currently we have some dot org domains as clients who now have no A or
>>> MX records cached locally so they cannot see their own websites, and are
>>> having mail issues as well. After much checking, and testing, and server
>>> log reviewing, we discovered this.
>>> Go to dnsstuff.org and run a ALL query on *any* dot org domain.
>>> Eventually the root server will refer to TLD1.ULTRADNS.NET, and nothing
>>> but NS records are returned. If the root server refers to
>>> AFILIAS-NST.org you get all records. We see this reslt for our client's
>>> domains as well openoffice.org, slashdot.org, freebsd.org.
>> What is the bad things here? Are the root servers not supposed to hand
>> out only NS records for the next level? They should not be used as
>> global resolvers.
>
> I agree. My understanding has always been root-server -> tld-server ->
> authoritative-server which returns the requested record.
>
> Oddly some clients never query past ultradns after receiving the
> authoritative server for their request. Though, those same clients are
> doing a query if the response comes from AFILIAS-NST.org. DNSSTUFF seems
> to do that as well.
>
> Possibly because the ultradns server returns no SOA record?
>
>> My guess is that you got a local DNS issue to resolv here.
>
> As I said above, "clients who now have no A or MX records cached
> locally". Our servers seem fine, only very clients have seen the issue.
>
>> So where do I find anything ORG. like? Let us just ask localy:
>>
>> $ dig org. any
>> ;; QUESTION SECTION:
>> ;org. IN ANY
>> ;; ANSWER SECTION:
>> org. 83204 IN NS tld1.ultradns.net.
>> org. 83204 IN NS tld2.ultradns.net.
>> org. 83204 IN NS a0.org.afilias-nst.info.
>> org. 83204 IN NS b0.org.afilias-nst.org.
>> org. 83204 IN NS c0.org.afilias-nst.info.
>> org. 83204 IN NS d0.org.afilias-nst.org.
>>
>> Now where can I find anything VANDERKOOIJ.ORG. like? Let us ask
>> tld1.ultradns.net. for this:
>>
>> $ dig vanderkooij.org. any @tld1.ultradns.net.
>> ;; QUESTION SECTION:
>> ;vanderkooij.org. IN ANY
>> ;; ANSWER SECTION:
>> vanderkooij.org. 86400 IN NS ns5.mydyndns.org.
>> vanderkooij.org. 86400 IN NS ns4.mydyndns.org.
>> vanderkooij.org. 86400 IN NS ns3.mydyndns.org.
>> vanderkooij.org. 86400 IN NS ns2.mydyndns.org.
>> vanderkooij.org. 86400 IN NS hvdkooij.xs4all.nl.
>>
>> Sounds to me like the way DNS is supposed to work.
>
> Yep, I thought so as well. And org queries also resolve properly from
> all our name servers.
>
>>> I called ultradns and they didn't seem too concerned, but said they
>>> would look into it.
>>> Am I crazy?
>> You might. But it does not nescessarily have any bearing on the question
>> at hand ;-)
>
> I can find nothing else in common between the clients with an issue except,
> A) every client has org for a TLD
> B) every client experiences the problem sporadicly
> C) ultradns is the only server not returning a SOA record.
>
> At this point I am unable to understand why they cannot get a MX record
> and mail does not arrive at the mailscanner servers. Or why they cannot
> get an A record and see their own website.
>
> Baffling...
>
> DAve
.org sometimes = grant funded, microsoft domain server or sexchange
configured to host the 'domain' .. sometimes.. it seems clueless admins
setup their own domain on their own network and so can't reach the real
one.. just a thought, but I've seen it a few times.
Ken
--
Ken Anderson
Pacific.Net
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