Simon,

> On Sep 21, 2015, at 2:58 AM, Simon Josefsson <[email protected]> wrote:
> 
> "Wessels, Duane" <[email protected]> writes:
> 
>> The former draft described two approaches to establishing a
>> DNS-over-TLS session: upgrade-based (aka STARTTLS for DNS) and
>> port-based.  In this new version we have removed the upgrade-based
>> approach and describe only the use of a well-known port.
> 
> Yay, thank you!
> 
> I believe the abstract or introduction section should mention that TLS
> gives you data integrity services, which protects against on-path
> tampering.  Right now the document talks about encryption to protect
> against eavesdropping.  However, the RFC 7258 pervasive monitoring
> attack includes active attacks and thus I believe talking about
> integrity is useful to set the context right.

I've added a short sentence to the abstract:

@@ -169,7 +169,9 @@
         This document describes the use of TLS to provide privacy
         for DNS.  Encryption provided by TLS eliminates opportunities
         for eavesdropping on DNS queries in the network, such as
-        discussed in RFC 7258.  In addition, this document specifies
+        discussed in RFC 7258.
+        TLS also protects against on-path tampering.
+        In addition, this document specifies
         two usage profiles for DNS-over-TLS and provides advice on
         performance considerations to minimize overhead from using
         TCP and TLS with DNS.


> One comment/thought around the /etc/service name 'domain-s'.  I find it
> undescriptive and difficult to type.  How about 'dnsovertls' or
> something more descriptive?

This has already been discussed and the IANA Ports Review team has provided
guidance that the -s suffix is preferred:

https://mailarchive.ietf.org/arch/msg/dns-privacy/dO99_jjoBUrHS2hCNDKTNRlBLFo

DW

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