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fix: prevent duplicated upstream queries

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pommee
2025-11-13 20:44:40 +01:00
parent 4d2a031760
commit caf6989758
1 changed files with 1 additions and 5 deletions
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6
backend/dns/server/handler.go
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@@ -581,11 +581,6 @@ func (s *DNSServer) Resolve(req *Request) ([]dns.RR, bool, string) {
return answers, false, status
}
if answers, ttl, status := s.QueryUpstream(req); status != dns.RcodeToString[dns.RcodeServerFailure] {
s.CacheRecord(cacheKey, req.Question.Name, answers, ttl)
return answers, false, status
}
answers, ttl, status := s.resolveCNAMEChain(req, make(map[string]bool))
if len(answers) > 0 {
s.CacheRecord(cacheKey, req.Question.Name, answers, ttl)
@@ -672,6 +667,7 @@ func (s *DNSServer) QueryUpstream(req *Request) ([]dns.RR, uint32, string) {
}
}
log.Debug("Sending query using '%s' as upstream", upstream)
in, _, err := s.dnsClient.Exchange(upstreamMsg, upstream)
if err != nil {
errCh <- err