[ntp:questions] Source address in response always the same as target address in request?

Jan Ceuleers janspam.ceuleers at skynet.be
Fri Dec 21 17:28:27 UTC 2007


Richard B. Gilbert wrote:
> I believe that there is a solution to the DNS caching problem.  Each DNS 
> record can be given a "Time To Live" or TTL.  If you are planning to 
> change the record, set the TTL to seven days, then six, five, four, 
> three, two, one. . . .  All of those cached records should expire at 
> more or less the same time.  It's not perfect but it works.  If you time 
> it just right, you can minimize the amount of disruption.

Still requires the clients to re-resolve the server address (something 
ntpd famously does not do currently; desparate attempt at getting back 
on-topic ;-)




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