Knowledge

DNS_ERROR_RCODE_NXRRSET - 9008 (0x2330)

DNS RR set that ought to exist, does not exist.

Updated: Feb 21, 2026

Technical Background

The DNS_ERROR_RCODE_NXRRSET error code, with the numeric value of 9008 and hexadecimal representation of 0x2330, is a specific error indicating that a DNS Resource Record (RR) set that should exist in the DNS database does not. This error is relevant to network services and specifically pertains to the Domain Name System (DNS).

Error Details

The DNS_ERROR_RCODE_NXRRSET error code signifies that during a DNS query or update operation, the RR set expected to be present was not found in the DNS database. This can occur for various reasons, such as incorrect configuration, data corruption, or operational issues.

Common Causes

  • Incorrect Configuration: The DNS server may have been misconfigured, leading to missing RR sets that should exist.
  • Data Corruption: The DNS database might be corrupted, causing the expected RR set to not be present.
  • Operational Issues: Network connectivity problems or temporary service outages could result in the failure to retrieve or update the required RR set.

Real-World Context

This error can occur when a client attempts to resolve a domain name that has associated resource records, such as A records (IPv4 addresses) or AAAA records (IPv6 addresses). If these records are missing from the DNS database, the query will fail with this specific error code.

Is This Error Critical?

The criticality of this error depends on the context. In some scenarios, it may be a minor issue that can be resolved by correcting configuration or data issues. However, in other cases, such as when essential services rely on these records, it could indicate a more severe problem that requires immediate attention.

How to Diagnose

To diagnose this error, follow these steps:

  1. Review the Operation Context: Ensure that the DNS query or update operation is being performed correctly and in the appropriate context.
  2. Validate Parameters: Check the parameters passed during the DNS request or update to ensure they are correct and complete.
  3. Confirm Object Types: Verify that the expected RR set types (e.g., A, AAAA) are present in the DNS database.

How to Resolve

To resolve this issue, consider these practical steps:

  1. Correct Parameter Usage: Ensure all parameters used in the DNS operation are accurate and complete.
  2. Adjust Operation Context: If the context of the operation is incorrect, adjust it to ensure proper execution.
  3. Restore Data: If data corruption is suspected, restore the DNS database from a known good backup or repair the corrupted records.

Developer Notes

Developers should be aware that this error can occur due to various factors and should implement robust error handling mechanisms in their applications to manage such scenarios gracefully.

Related Errors

  • DNS_ERROR_RCODE_REFUSED (9012, 0x2344): Indicates a DNS server refused the query.
  • DNS_ERROR_RCODE_FORMERR (9005, 0x232D): Indicates a malformed query was received.

FAQ

Q: What does the DNS_ERROR_RCODE_NXRRSET error mean?

A: It indicates that a DNS RR set expected to exist in the database is missing.

Q: How can I prevent this error from occurring?

A: Regularly validate and update your DNS records, ensure proper configuration of DNS servers, and maintain backups of your DNS database.

Summary

The DNS_ERROR_RCODE_NXRRSET error code is a specific indication that a required DNS RR set does not exist in the database. Understanding its context and causes can help in diagnosing and resolving issues related to network services and DNS operations.