dns over tls with unbound on openwrt

Joe Abley jabley at hopcount.ca
Wed Feb 12 14:31:10 UTC 2020

On Feb 12, 2020, at 09:23, Elmar Stellnberger via Unbound-users
<unbound-users at lists.nlnetlabs.nl> wrote:

> What is the difference between recursive and forward DNS?

A recursive resolver sends queries to many authoritative servers,
following referrals where they happen, in order to find answers to the
questions sent to them by clients. They start with knowledge of how to
reach the root servers acquired through the priming process and
discover everything else as they go. This is arguably an iterative
process but was described as recursive in the original specification
and the name has stuck.

A forwarder receives queries from clients and sends the questions on
to a locally-configured set of servers which are generally themselves
either forwarders or recursive servers. A forwarder does not send
queries to authoritative servers directly, does not need to prime and
does not (have the opportunity to) follow referrals.


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