Yes, the legitimate client would be susceptible to spoofing. No answer means larger time windows to guess the port+msgid combination.
-- Ondřej Surý — ISC (He/Him) My working hours and your working hours may be different. Please do not feel obligated to reply outside your normal working hours. > On 13. 4. 2021, at 11:31, Julien Salort <lis...@salort.eu> wrote: > > Is there really a usefulness to reply with code 5, instead of silently > ignoring the request? _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list ISC funds the development of this software with paid support subscriptions. Contact us at https://www.isc.org/contact/ for more information. bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users