Please, talk me down.

Mikael Abrahamsson swmike at swm.pp.se
Wed Oct 17 03:42:55 UTC 2012


On Wed, 17 Oct 2012, Joseph Anthony Pasquale Holsten wrote:

> But today I noticed that we have a lot of traffic to our DNS cache, and 
> started to investigate. Turns out that every DNS request would start 
> with one for the AAAA record. Ah, no luck. Maybe you forgot the search 
> domain? Let's retry that DNS request with that tacked on. Failed again? 
> Meanwhile, lets simultaneously try for the AA record then. Repeat.

You're describing normal behaviour. Why do you feel the behaviour you're 
seeing is a problem? Because you're not running IPv6, you're seeing twice 
the DNS traffic in some cases.

Doing multiple lookups for everything in search domain is done for IPv4 as 
well.

-- 
Mikael Abrahamsson    email: swmike at swm.pp.se



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