- if upstream DNS is missing fallbacks on localresponder if defined, else on "127.0.0.53:53" as last chance

dns_client.go

@@ -88,6 +88,11 @@ func oneTimeDNS(config string) (dns string) {
 	upl := ZabovConfigs[config].ZabovDNSArray
 
 	if len(upl) < 1 {
+
+		if len(ZabovLocalResponder) > 0 {
+			fmt.Println("No DNS defined, fallback to local responder:", ZabovLocalResponder)
+			return ZabovLocalResponder
+		}
 		fmt.Println("No DNS defined, using default 127.0.0.53:53. Hope it works!")
 		return "127.0.0.53:53"
 	}