Secure Nameserver Selection Algorithm for DNS Resolvers
draft-zhang-dnsop-ns-selection-01
| Document | Type |
Expired Internet-Draft
(individual)
Expired & archived
|
|
|---|---|---|---|
| Authors | Fenglu Zhang , Baojun Liu , Linjian (Davey) Song , Shumon Huque | ||
| Last updated | 2025-04-24 (Latest revision 2024-10-21) | ||
| RFC stream | (None) | ||
| Intended RFC status | (None) | ||
| Formats | |||
| Stream | Stream state | (No stream defined) | |
| Consensus boilerplate | Unknown | ||
| RFC Editor Note | (None) | ||
| IESG | IESG state | Expired | |
| Telechat date | (None) | ||
| Responsible AD | (None) | ||
| Send notices to | (None) |
This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:
Abstract
Nameserver selection algorithms employed by DNS resolvers are not currently standardized in the DNS protocol, and this has lead to variation in the methods being used by implementations in the field. Recent research has shown that some of these implementations suffer from security vulnerabilities. This document provides an in-depth analysis of nameserver selection utilized by mainstream DNS software and summarizes uncovered vulnerabilities. It then provides recommendations for defending against these security and availability risks. Designers and operators of recursive resolvers can adopt these recommendations to improve the security and stability of the DNS.
Authors
Fenglu Zhang
Baojun Liu
Linjian (Davey) Song
Shumon Huque
(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)