On 5 Apr 2006, at 12:37, Paul Jakma wrote:
> On Wed, 5 Apr 2006, Niall O Broin wrote:
>>> The TTL on the .ie zone file is 2D. I suppose as the .ie zone file
>> is just a zone file, albeit a rather big one, it would be possible
>> to set different TTLs for individual records therein. However, is
>> the IEDR amenable to so doing?
>>> I don't actually want to do this BTW - it's just a technical
>> curiosity arising out of a discussion with a customer.
>> Glue isn't authorative though, so shouldn't any querying servers
> use the TTL on the /authorative/ records if it can get them over
> any glue in the delegating zone?
That brings up an interesting point - what happens if all the name
servers for a zone die, and a querying server, which has cached the
NS records, is looking for an answer? As it has cached an auth.
answer, it's not going to look to the glue records again until the
TTL expires. This is rather germane to the discussion with the customer.
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