Aliases
07An alias redirects DNS resolution to a canonical name, where the desired record can be found.
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Related RFCs and changes
“Updates” changes part of an earlier RFC. “Obsoletes” replaces it. This list shows selected related documents.
DIAGRAM§ 3.6.2 ↗
RFC 1034 · § 3.6.2EXAMPLE
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04
Return the complete result.
The application can use the address while the resolver caches the relevant records.
Protocol participantThreat or exceptionProtocol controlSimplified drawings · precise section references
Read the updated RFC section ↗
Follow the name, then answer the type.
- For a non-CNAME question, include the CNAME and restart at its target.
- A query specifically for CNAME returns the alias record itself.
- Detect alias loops and signal an error rather than looping indefinitely.
RFC 1034 says a CNAME owner should have no other data. Later DNSSEC specifications add carefully defined exceptions for DNSSEC records.
Read the RFC section ↗Diagrams simplify the RFC. Read the linked sections for complete requirements.
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