Decreasing Access Time to Root Servers by Running One on Loopback
RFC 7706, “Decreasing Access Time to Root Servers by Running One on Loopback”, is an Informational document published in November 2015 by W. Kumari, P. Hoffman. It has been obsoleted by RFC 8806 — refer to the newer document for the authoritative version. The canonical text is published by the RFC Editor.
Abstract
Some DNS recursive resolvers have longer-than-desired round-trip times to the closest DNS root server. Some DNS recursive resolver operators want to prevent snooping of requests sent to DNS root servers by third parties. Such resolvers can greatly decrease the round-trip time and prevent observation of requests by running a copy of the full root zone on a loopback address (such as 127.0.0.1). This document shows how to start and maintain such a copy of the root zone that does not pose a threat to other users of the DNS, at the cost of adding some operational fragility for the operator.
What “Informational” means
Published for the general information of the community. It does not define an IETF standard and carries no standards-track status.
The canonical text of RFC 7706 is hosted at rfc-editor.org. Available in TXT,HTML.
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