Re: [PATCH 2/3] Unbound: Use caps for IDs

[Michael Tremer <michael.tremer@ipfire.org>]

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Okay, let's give it a try then.

On Thu, 2018-08-23 at 21:15 +0200, Peter Müller wrote:
> Hello,
> 
> > This was deliberately not enabled because the documentation contains a
> > warning about various incompatibilities with various other DNS servers.
> 
> Yes, there are a lot of broken DNS servers out there...
> > 
> > Is there some sort of study saying that this can be safely enabled?
> 
> I know people operating DNS resolvers for > 30k customers with this setting
> enabled. They never experienced any issue with this so far. This is enabled
> on my systems too.
> 
> Currently, I am not aware of a public study.
> 
> Best regards,
> Peter Müller
> > 
> > -Michael
> > 
> > On Sun, 2018-08-19 at 20:11 +0200, Peter Müller wrote:
> > > Attempt to detect DNS spoofing attacks by inserting 0x20-encoded
> > > random bits into upstream queries. Upstream documentation claims
> > > it to be an experimental implementation, it did not cause any trouble
> > > on productive systems here.
> > > 
> > > See https://nlnetlabs.nl/documentation/unbound/unbound.conf/ for
> > > further details.
> > > 
> > > Signed-off-by: Peter Müller <peter.mueller(a)link38.eu>
> > > ---
> > >  config/unbound/unbound.conf | 2 +-
> > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > > 
> > > diff --git a/config/unbound/unbound.conf b/config/unbound/unbound.conf
> > > index fa2ca3fd4..8b5d34ee3 100644
> > > --- a/config/unbound/unbound.conf
> > > +++ b/config/unbound/unbound.conf
> > > @@ -59,7 +59,7 @@ server:
> > >  	harden-below-nxdomain: yes
> > >  	harden-referral-path: yes
> > >  	harden-algo-downgrade: no
> > > -	use-caps-for-id: no
> > > +	use-caps-for-id: yes
> > >  
> > >  	# Harden against DNS cache poisoning
> > >  	unwanted-reply-threshold: 5000000
> 
> 
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