Expand description
Upstream DNS exchange. Independent cache shards hold idle connections only;
no lock or manager task is held while a Query waits for its Response.
DNS-over-TLS is deferred to M3.
CoreDNS’s forward performs the prefer_udp TC retry; Pharos does it here,
so a forward caller must not retry the same truncated Response again.
Re-exports§
pub use health::Health;pub use health::HealthConfig;
Modules§
- health
- On-demand upstream health checks, independent of the forwarding transport.