Reuse a connection for multiple queries
04Persistent connections amortize TCP and TLS establishment and support multiple exchanges.
Related RFCs and changes
“Updates” changes part of an earlier RFC. “Obsoletes” replaces it. This list shows selected related documents.
DIAGRAM§ 3.4 ↗
RFC 7858 · § 3.4EXAMPLE
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An idle close requires reestablishing before later queries.
An idle close requires reestablishing before later queries.
Protocol participantThreat or exceptionProtocol controlSimplified drawings · precise section references
Read the updated RFC section ↗
Avoid a new handshake for every DNS question when a connection is reusable.
- Avoid a new handshake for every DNS question when a connection is reusable.
- Idle close and reestablishment require resource and timeout management.
The drawing is a simplified worked example. Follow the linked RFC and its updates for implementation requirements.
Read the RFC section ↗Diagrams simplify the RFC. Read the linked sections for complete requirements.
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