Re: [Exim] Long lookup time - almost solved now

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Autor: Philip Hazel
Data:  
Para: Philip Blundell
CC: Marcin Owsiany, exim-users
Asunto: Re: [Exim] Long lookup time - almost solved now
On Mon, 6 Nov 2000, Philip Blundell wrote:

> In message <20001106155124.C11207@???>, Marcin Owsiany write
> s:
> >#define AF_INET            2    /* Internet IP Protocol */
> >#define AF_INET6        10    /* IP version 6 */

> >
> >No wonder that nameservers don't feel like replying to that querries.
>
> There's no good reason why an AF_INET6 query should take a long time; a
> non-IPv6-aware host will simply have no AAAA record. You are only likely to
> run into trouble if the authoritative nameservers are down but the A record
> can be fetched from cache.


Debian's Exim has been compiled with IPv6 support for quite a long time
now. There hasn't been a spate of such problems.

Could this, however, be one particular (presumably ancient) nameserver,
that has a problem? Is this plausibie, Philip?

-- 
Philip Hazel            University of Cambridge Computing Service,
ph10@???      Cambridge, England. Phone: +44 1223 334714.