[Dnsmasq-discuss] Cache Time Threshold
simon at thekelleys.org.uk
Wed Apr 9 19:36:20 BST 2008
Nathan Jay Skoglund wrote:
> I wonder if anybody has a way to extend the time that dnscache will
> remember lookups. I have noticed that after only a few minutes dns
> lookups require more time, which indicate that they are heading upstream
> beyond dnsmasq when used as a cache.
> You can read a somewhat futile discussion of the event here:
> This would really tickle my fancy, and probably really get adoration
> from satellite guys.
My take on this is that the DNS admin set the Time-to-live, and it
shouldn't be over-ridden. If the DNS admin wanted a longer time, they
would have set it. Even if you get away with extending the TTL for most
domains, eventually you'll find one which breaks.
I think this position is well articulated by this post which I found,
(and lifted, without permission) on a Gentoo list:
>As an admin that occasionally has cause to shift traffic between coasts
>for maintenance I hate *hate* anything that ignores my TTLs and
>consider such software broken and bane upon our fair Internet.
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