[Dnsmasq-discuss] [PATCH] Add --max-cache-ttl to influence cache lifetime

Simon Kelley simon at thekelleys.org.uk
Thu Sep 20 20:48:41 BST 2012


On 18/09/12 11:42, Dennis Kaarsemaker wrote:
> Hi Simon,
>
> I want to be able to do minimal DNS caching, using dnsmasq mostly for
> splitting resolver paths (1 domain to a different server). This option
> helps me achieve that.
>
> Background reasoning (if you're interested):
>
> For our internal domains, all nameservers are authoritative, no caching
> is used internally, making name changes appear immediately everywhere.
> We have some dumb applications however, which may do dns lookups for the
> same name multiple times per second. This isn't much of a problem, so
> we've not fixed it. However, I'm now introducing dnsmasq as part of our
> internal loadbalancing layer for its possibility to redirect requests
> for a specific domain elsewhere. It'd be a shame not to use this
> opportunity to "fix" the other issue.
>

Patch accepted. Many thanks.

Simon.



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