11
DNS
11 DSOTYPENI
DSO-TYPE Not Implemented. The DNS Stateful Operations (DSO) type in the request is not supported by the server.
Quando você vê este código
Your client attempted a DSO operation (like a keepalive or push subscription) that the server does not recognize or has not implemented.
Como corrigir
Verify that both client and server support the same DSO-TYPE. Upgrade the server software or fall back to traditional DNS queries.
Especificação
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Resource Hints: Preload, Prefetch, Preconnect, and DNS-Prefetch
Performance & Optimization
RFC 9114: HTTP/3 Protocol Deep Dive
Protocol Deep Dives
RFC 3261: SIP Protocol Deep Dive
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QUIC Protocol: The Transport Layer Behind HTTP/3
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Migrating from TLS 1.2 to TLS 1.3: Configuration and Compatibility
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Secret Management for API Keys, Tokens, and Certificates
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