dnsforward: imp code

internal/dnsforward/process.go

@@ -145,9 +145,6 @@ const mozillaFQDN = "use-application-dns.net."
 // [Section 6.2 of RFC 6761]: https://www.rfc-editor.org/rfc/rfc6761.html#section-6.2
 const healthcheckFQDN = "healthcheck.adguardhome.test."
 
-// retryNoError is a retry time for NoError SOA.
-const retryNoError = 60
-
 // processInitial terminates the following processing for some requests if
 // needed and enriches dctx with some client-specific information.
 //
@@ -162,7 +159,7 @@ func (s *Server) processInitial(dctx *dnsContext) (rc resultCode) {
 	q := pctx.Req.Question[0]
 	qt := q.Qtype
 	if s.conf.AAAADisabled && qt == dns.TypeAAAA {
-		pctx.Res = proxy.GenEmptyMessage(pctx.Req, dns.RcodeSuccess, retryNoError)
+		pctx.Res = s.newMsgNODATA(pctx.Req)
 
 		return resultCodeFinish
 	}