DNS_ERROR_RECORD_DOES_NOT_EXIST - 9701 (0x25E5)

Technical Meaning

The error code DNS_ERROR_RECORD_DOES_NOT_EXIST with the numeric value 9701 and hexadecimal representation 0x25E5 signifies that a requested DNS record could not be located. This typically occurs when attempting to resolve a domain name or query for specific resource records (RRs) in the DNS system.

Error Details

This error is returned by the Windows API functions related to DNS operations, such as DnsQuery and DnsRecordListToBuffer. It indicates that the specified record type does not exist within the queried domain or zone. Commonly encountered record types include A (IPv4 address), AAAA (IPv6 address), MX (mail exchange), NS (name server), etc.

Usage Context

This error is relevant in scenarios where a DNS client attempts to resolve a domain name or retrieve specific resource records from the DNS server. It can occur due to various reasons, such as incorrect domain names, non-existent records, or network connectivity issues.

Developer Interpretation

When encountering DNS_ERROR_RECORD_DOES_NOT_EXIST, developers should consider several aspects of their application's behavior and input validation:

• Domain Name Validity: Ensure that the domain name being queried is correct and exists in the DNS system.
• Record Type Validation: Verify that the requested record type (e.g., A, AAAA) is appropriate for the query context. Incorrect or unsupported record types can lead to this error.
• Network Connectivity: Check if there are network issues preventing successful communication with the DNS server. Ensure that the client has proper access and permissions to perform DNS queries.

Related Errors

• DNS_ERROR_NO_SUCH_DOMAIN (9702): Indicates that a domain name does not exist in the DNS system.
• ERROR_NOT_SUPPORTED (1208): May be returned if an unsupported record type is requested, though it typically maps to DNS_ERROR_RECORD_TYPE rather than this specific error code.

FAQ

Q: What causes DNS_ERROR_RECORD_DOES_NOT_EXIST?

A: This error occurs when the DNS server cannot find a specified resource record for the queried domain name. Common causes include incorrect or non-existent domain names, invalid record types, and network connectivity issues.

Q: How can I resolve this issue in my application?

A: Ensure that your queries are correct and valid. Check the domain name and record type being requested. Verify network connectivity and ensure proper permissions for DNS operations.

Summary

DNS_ERROR_RECORD_DOES_NOT_EXIST is a generic error code indicating that a requested DNS record could not be found. Developers should validate input parameters, check domain names, and ensure network connectivity when encountering this error.