dnswatcher/internal/resolver/iterative.go at fix/query-timeout-and-recursive-resolution

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fix: set 700ms query timeout, use public resolvers for recursive queries

- Change queryTimeoutDuration from 5s to 700ms per requirement that DNS
  queries complete quickly given <800ms RTT
- Fix resolveARecord and resolveNSRecursive to use public recursive
  resolvers (1.1.1.1, 8.8.8.8, 9.9.9.9) instead of root servers,
  which don't answer recursive queries (RD=1)

2026-02-21 02:56:33 -08:00

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