[nsd-users] Patch: {max,min}-{refresh,retry}-time

W.C.A. Wijngaards wouter at nlnetlabs.nl
Mon Jun 27 07:43:37 UTC 2016

Hi Anand, Daisuke,

Allright, changed defaults to 0 and 0 for min-refresh-time and
min-retry-time.  Left default values for max (they seem large enough to
not impact people).

Best regards, Wouter

On 22/06/16 13:54, Anand Buddhdev wrote:
> On 17/06/16 21:27, Daisuke HIGASHI wrote:
> I would like to echo Daisuke's comment. If you introduce this new
> feature, don't also activate it automatically, because it will catch
> users by surprise. Remember what happened with RRL? If RRL is compiled
> in, then NSD also applies some hard-coded defaults, and a user has to
> explicitly turn off RRL. So a packager who wants to ship NSD with RRL
> compiled it, but not on by default has to use the option:
> --enable-ratelimit-default-is-off
> New features, especially those that change how the software departs from
> a standard, should default to off.
> Regards,
> Anand
>> Hi,
>> I also appreciate these options but I'd like
>> to comment on default value of min-{refresh,retry}-time,
>> which seems to be 300 and 500 respectively.
>> It changes default behavior of NSD, and will surprise people (including me)
>> who really want small REFRESH value to minimise zone propagation time.
>> So I suggest that default value of min-{refresh,retry}-time option
>> to be 0, to leave NSD's default behavior unchanged.
>> The option is useful for to "secondary DNS provider"
>> who want to supress refresh flooding. If they want to do it
>> they would select appropriate values and set these options.
>> Regards,
> _______________________________________________
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> nsd-users at NLnetLabs.nl
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