The IESG has approved the following document: - 'Decreasing Access Time to Root Servers by Running One on Loopback' (draft-ietf-dnsop-root-loopback-05.txt) as Informational RFC This document is the product of the Domain Name System Operations Working Group. The IESG contact persons are Benoit Claise and Joel Jaeggli. A URL of this Internet Draft is: https://datatracker.ietf.org/doc/draft-ietf-dnsop-root-loopback/ Technical Summary 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. Working Group Summary This document came out of several different proposals involving improving the redundancy of the DNS Root Zone. The document was the one which the Working Group was able to gather consensus. The discussion behind this was engaging as several felt the trade off of local copies for speed increased operational fragility. This document was not written to become a Best Practice or an Internet Standard, but as an Informational document to explain how operators currently manage such tasks. Document Quality Note, There is an IPR disclosure related to this document. The Authors have already been aware of this IPR disclosure, and no of no other IPR disclosure related to this document. The opinion of the working group is that the IPR party implies a willingness to commit to not requiring any licenses or royalties. Personnel The Document Shepherd is Tim Wicinski. The Responsible Area Director is Joel Jaggeli.
