> Still, being able to differentiate a local network congestion from a > remote bad configuration would help.
That's true. There's https://tools.ietf.org/html/draft-ietf-dnsop-extended-error-16 which look promising, trying to make it possible to distinguish between the various reasons a recursor might choose to return a SERVFAIL response. It uses an EDNS option to communicate the additional information. As for its implementation status in general or in BIND in particular I'll admit that I don't know off-hand. Regards, - Håvard _______________________________________________ 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
