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OS resolver retry catch all

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Alex
2025-02-11 19:27:50 +07:00
committed by Cuong Manh Le
parent 9e83085f2a
commit 0fae584e65
1 changed files with 13 additions and 0 deletions
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cmd/cli/dns_proxy.go
+13
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@@ -638,6 +638,19 @@ func (p *prog) proxy(ctx context.Context, req *proxyRequest) *proxyResponse {
} }
} }
// attempt query to OS resolver while as a retry catch all
if upstreams[0] != upstreamOS {
ctrld.Log(ctx, mainLog.Load().Debug(), "attempting query to OS resolver as a retry catch all")
answer := resolve(0, osUpstreamConfig, req.msg)
if answer != nil {
ctrld.Log(ctx, mainLog.Load().Debug(), "OS resolver retry query successful")
res.answer = answer
res.upstream = osUpstreamConfig.Endpoint
return res
}
ctrld.Log(ctx, mainLog.Load().Debug(), "OS resolver retry query failed")
}
answer := new(dns.Msg) answer := new(dns.Msg)
answer.SetRcode(req.msg, dns.RcodeServerFailure) answer.SetRcode(req.msg, dns.RcodeServerFailure)
res.answer = answer res.answer = answer