[Dnsmasq-discuss] preemptive upstream dns refresh

Simon Kelley simon at thekelleys.org.uk
Wed Oct 7 21:59:14 BST 2015


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Nothing was done, but it would be an interesting thing to try. I've
added it to my list of stuff to do over the winter.


Cheers,

Simon.


On 07/10/15 17:01, Patrick Hemmer wrote:
> I'm looking to use dnsmasq in a solution with unreliable and slow 
> upstream DNS servers. The ideal solution would be if when fetching
> a record from dnsmasq, it would cache the record according to the
> upstream TTL. If it has the record already cached, but the TTL is
> over 50% to expiration, dnsmasq would immediately respond to the
> query, but would also start trying to refetch the record from the
> upstream server.
> 
> Similar type of behavior is used by many network protocols such as
> DHCP, and even DNS itself (zone transfer refresh/expiry).
> 
> I've seen a few requests from this on the mailing list, such as 
> https://www.mail-archive.com/dnsmasq-discuss%40lists.thekelleys.org.uk
/msg07555.html
>
> 
That one indicates that the issue would be investigated after 2.67 was
> released. Did this ever go anywhere?
> 
> Thanks
> 
> -Patrick
> 
> 
> 
> _______________________________________________ Dnsmasq-discuss
> mailing list Dnsmasq-discuss at lists.thekelleys.org.uk 
> http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
> 
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