Re: F24 System Wide Change: Default Local DNS Resolver

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On Mon, Dec 07, 2015 at 04:12:20PM +0100, Lennart Poettering wrote:
> On Mon, 07.12.15 13:25, Gerd Hoffmann (kraxel@xxxxxxxxxx) wrote:
> > > Quite frankly: a setup like this one isn't just very typical for home
> > > router networks, but also in many companies, where ".lan" or
> > > ".companyname" or something like that is frequently established in the
> > > internal network. And you will make Fedora incompatible with all these
> > > networks by default.
> > 
> > Even if you don't grab some random name it still is a problem.  /me runs
> > home.kraxel.org zone for my home network (and, yes, kraxel.org is mine).
> > That zone isn't visible outsize my home network, if you try to resolve
> > that by walking down from the root zone you wouldn't find it, you have
> > to use the local dns server propagated by dhcp.
> 
> This case should actually not be a problem normally, even with
> DNSSEC, since in such a case you wouldn't enable DNSSEC on
> kraxel.org.
> 
> If you want to do such "split horizon" setups, then don't sign your
> zones. I think that's a completely fair requirement to make, and if
> you did sign your domains then this should really mean "don't allow
> anything below my domain except what I define here or delegated".

Why would you say that? Split horizon with DNSSEC works fine -- just
sign both external and internal views.

-- 
Scott Schmit

<<attachment: smime.p7s>>

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