RFC 9567

DNS Error Reporting, April 2024

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R. Arends
M. Larson
dnsop (ops)

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DOI:  https://doi.org/10.17487/RFC9567

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DNS error reporting is a lightweight reporting mechanism that provides the operator of an authoritative server with reports on DNS resource records that fail to resolve or validate. A domain owner or DNS hosting organization can use these reports to improve domain hosting. The reports are based on extended DNS errors as described in RFC 8914.

When a domain name fails to resolve or validate due to a misconfiguration or an attack, the operator of the authoritative server may be unaware of this. To mitigate this lack of feedback, this document describes a method for a validating resolver to automatically signal an error to a monitoring agent specified by the authoritative server. The error is encoded in the QNAME; thus, the very act of sending the query is to report the error.

For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 8729.

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