Just noticed this, is is a problem?

Re: Just noticed this, is is a problem?

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At 9:20 AM -0400 10/6/01, Robert J. Woodhead (AnimEigo) wrote:
>At 8:00 PM +0000 10/5/01, QuickDNS Talk wrote:
>>You're talking about the serial, refresh, retry, expire, and minimum
>>values? Those are part of the SOA record, which begins on the
>>previous line. It's perfectly normal for these to be broken out onto
>>multiple lines, and it's perfectly normal to not always get an SOA
>>record when the results you see are from cache.
>
>No, I'm talking about the fact that the animeigo.com query returns a
>SOA, but the selfpromotion.com query didn't.

As I said above, it's perfectly normal to not always get an SOA
record when the results you see are from [the server's] cache.

Your original message said:

At 11:11 AM -0400 10/5/01, Robert J. Woodhead (AnimEigo) wrote:
>I'm running 2.2.1, and just noticed that when I do a query for one
>of my domains (the first one), I get the TTL info in the response.
>But when I do a query for the other domains, I don't. Is this a
>problem?

What server? It makes a big difference in what results you get. Also,
what type of query are you sending?

>Curiously, this morning, I get SOAs for both if I directly query my
>server from home. Yesterday I only got a SOA for animeigo.com.

If you query your own server directly, with the query type sent to
ANY or SOA, you should see an SOA record for every zone name for
which your server is authoritative.

That means:

Query name: Server name: Query type: Records in answer:
animeigo.com ns2.animeigo.com Any 1 SOA, 2 NS, +more
animeigo.com ns2.animeigo.com SOA 1 SOA
animeigo.com dns1.menandmice.com Any 2 NS (delegation)
animeigo.com dns1.menandmice.com SOA 1 SOA
animeigo.com dns1.menandmice.com Any 1 SOA, 2 NS (cached)

>The only difference is that yesterday my ISP's secondary was not
>reporting authoritative results for my domains (triggering an alert
>in DNSExpert Trial), they tweaked that (no errors now) and now all
>seems copacetic.
>
>Interesting.

It's all a matter of what query is sent, to which server, and what
that server has cached or can find most easily that answers the query.

>Question: does OT round-robin the dns servers listed in the TCP/IP
>control panel or try them in order of priority. If the former, that
>is the probable cause of the anomaly since I have several dns
>servers listed in my "office" configuration (which I used to do the
>tests)

Open Transport, like Microsoft's Winsock, queries the first server
listed. It then waits up to an amount of time determined by some
formula known only to Apple, Mentat, and Microsoft, but which
generally equates to either 7.5 or 15 seconds. If the first listed
server hasn't responded by then, the second server is queried.
____________________________________________________________________
Chris Buxton Men & Mice
cbuxton@menandmice.com Making DNS Easy

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