Re: F24 System Wide Change: Default Local DNS Resolver

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On Mon, 07.12.15 17:23, Tomas Hozza (thozza@xxxxxxxxxx) wrote:

> > Can you elaborate a bit?  Is the intent that, if .box were private, then .box would be forwarded to DHCP-provided revolvers regardless of whether those resolvers were functional when asking for DNSSEC signature data?
> >
> > If so, what cases does this not cover?  It fails in the split-horizon DNSSEC-enabled case where the domain owner hasn't set it up right, but I'd argue that that's a good thing.
> 
> I think that explicit list of domains would cover pretty much any
> use-case. We were thinking about configuring the mixed-mode module
> with local resolvers only in case these are not DNSSEC-capable. In
> such situation everything would work fine. However if the local
> resolvers are DNSSEC-capable, then we would not configure the mixed
> mode module with them and I such case the validation would simply
> fail for any faked TLD. So we would have to configure mixed-mode
> module with local resolvers in any case. I guess it would be fine,
> but I would have to think about it little bit more.

Hmm? If I work for a company "Foo Corp" that defined .foocorp as its
private TLD, then I won't be able to access servers in that local
network until I added .foocorp to a local whitelist, is that what you
are saying? Or do you want to ship your package with all those domains
pre-configured? How would you know .foocorp in advance?

I am pretty sure these things need to work out-of-the-box, and that
means a whitelist cannot really work.

Lennart

-- 
Lennart Poettering, Red Hat
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