Re: (DNS) consensus wording
Donald E. Eastlake 3rd (dee@cybercash.com)
Tue, 2 Apr 1996 17:26:54 -0500 (EST)
You are not supposed to do negative caching with a time larger than the
zone SOA MINIMUM field. See section 4.3.4 of RFC 1034.
Donald
On Sun, 31 Mar 1996, David W. Morris wrote:
> Date: Sun, 31 Mar 1996 18:43:00 -0800 (PST)
> From: David W. Morris <dwm@shell.portal.com>
> To: Anawat Chankhunthod <chankhun@catarina.usc.edu>
> Cc: http-wg%cuckoo.hpl.hp.com@hplb.hpl.hp.com
> Subject: Re: (DNS) consensus wording
>
>
>
> On Sat, 30 Mar 1996, Anawat Chankhunthod wrote:
>
> > I have some additional ideas. Danzig., et.al (SIGCOMM92 ??) shows that
> > NEGATIVE caching DNS will help to reduce DNS traffic quite a bit.
> > Negative cache means when DNS lookup fail (may be after 2-3 trails) for
> > that particular host, we should cache the result (the failure) for a short
> > time to avoid subsequent look up (which likely to fail again). Say 2 minutes.
>
> While this is a useful suggestion, it doesn't fall in the domain of being
> a security issue. It might be considered for an HTTP implementation
> recommendations document.
>
> Dave Morris
>
>
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