odd dns behavior on osx

[Alan Batie]

On 6/17/10 10:48 PM, Tore Anderson wrote:

> You're experiencing a known OS X bug.  It will send out the A and AAAA
> queries in parallel, and will use the first answer it gets back and
> ignore the second one.

The reason I think this is a cache timeout bug in the gui libraries is
that it always works on a fresh query, i.e. after clearing the dns
cache, and it always fails after a period of time (though I haven't had
a chance to characterize the details, it "feels" like the one hour cache
timeout facebook uses).

Though I just upgraded to 10.6.4 this morning here at work, and I'm not
seeing the problem now --- maybe they fixed it...

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