>On 1/4/02 11:53 PM, [EMAIL PROTECTED] at
>[EMAIL PROTECTED] wrote:
>
>>  Theoretically true.
>>
>>  In real life, don't expect it to actually happen.  AOL is notoriously
>>  slow about updating their DNS servers.  In my neck of the woods, the
>>  University of Texas is also.  I always assume that it'll be at least
>>  a week - and if I have the ability, a month - before everyone is
>>  getting the correct info.
>
>Other than on the defined authoratative DNS servers, there is nothing to
>update. All other servers, once they've had to retrieve the data, cache it
>for TTL seconds. After that, they're supposed to discard the data and
>reacquire it from an authoratative server if it's requested again.
>
>So the only way a server could be "notoriously slow about updating their DNS
>servers" is if they're not honoring the TTL and caching it longer than that
>which would make their DNS server non-compliant with the appropriate RFCs.
>

Exactly the problem, from what I've seen and heard.
-- 
Bill Christensen
[EMAIL PROTECTED]

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