BCP 231
RFC 8906
A Common Operational Problem in DNS Servers: Failure to Communicate, September 2020
- File formats:
- Also available: XML file for editing
- Status:
- BEST CURRENT PRACTICE
- Authors:
- M. Andrews
R. Bellis - Stream:
- IETF
- Source:
- dnsop (ops)
Cite this RFC: TXT | XML | BibTeX
DOI: 10.17487/RFC8906
Discuss this RFC: Send questions or comments to the mailing list dnsop@ietf.org
Other actions: View Errata | Submit Errata | Find IPR Disclosures from the IETF | View History of RFC 8906
Abstract
The DNS is a query/response protocol. Failing to respond to queries, or responding incorrectly, causes both immediate operational problems and long-term problems with protocol development.
This document identifies a number of common kinds of queries to which some servers either fail to respond or respond incorrectly. This document also suggests procedures for zone operators to apply to identify and remediate the problem.
The document does not look at the DNS data itself, just the structure of the responses.
For the definition of Status, see RFC 2026.
For the definition of Stream, see RFC 8729.