Re: [DNSOP] New Version Notification for draft-liu-dnsop-dns-cache

So, most implementations do some sort of prefetch thing now, and so the
primary purpose of "hammer" has been achieved. But, I think it is still
worth documenting the behavior. I'm planning on updating and then asking
DNSOP to adopt and then publish this sometime...

W

On Sat, Mar 26, 2016 at 5:36 PM Tony Finch <dot@dotat.at> wrote:

> Stephane Bortzmeyer <bortzmeyer@nic.fr> wrote:
> >
> > I've read it, noticed that it is not just a documentation of local
> > practices but it wants to be published as BCP, and:
> >
> > * it is not clear which problem it is trying to solve.
>
> Thanks Stephane. I agree with your observations, with a couple of
> amendments...
>
> > * caching SERVFAIL, as recommended (section 4), raises an interesting
> >   question: for how long? (Unlike NXDOMAIN, SERVFAIL answers do not
> >   provide an indirect TTL)
>
> This is a feature of the forthcoming BIND 9.11. The default servfail-ttl
> is one second. (I don't know if other servers have a similar feature.)
>
>
> https://source.isc.org/cgi-bin/gitweb.cgi?p=bind9.git;a=blob;f=CHANGES;hb=refs/heads/master#l1370
>
> > * if someone really wants to do "pre-fetching" (section 5), it does
> >   not require a new RFC or an update of the name servers. Just request
> >   the names you want, through the resolver/cache.
>
> There was https://tools.ietf.org/html/draft-wkumari-dnsop-hammer which
> seems to have been dropped through lask of interest. I think this is a
> terrible shame, but I'm biased because of the first sentence of section 9.
>
> Tony.
> --
> f.anthony.n.finch  <dot@dotat.at>  http://dotat.at/  -  I xn--zr8h
> punycode
> Fitzroy: Westerly or southwesterly 7 to severe gale 9, perhaps storm 10
> later.
> Very rough or high, occasionally very high later in northwest. Rain or
> showers. Moderate occasionally poor.
>
> _______________________________________________
> DNSOP mailing list
> DNSOP@ietf.org
> https://www.ietf.org/mailman/listinfo/dnsop
>