I don’t think there was anything wrong with your servers. The log messages indicate problems with the authoritative servers.
In theory authoritative DNS servers should be able to serve content until the zone content expires. They should be able to be powered off then rebooted and continue to serve the content they had provided it hasn’t expired in the meantime by reading it off local disc drives. This obviously has not happened for the zones you mentioned. The servers appear to have come up without access to the zone content they are supposed to serve and are hence returning SERVFAIL. Forwarding to the servers you are is providing indirect access to instances with zone content to serve. Mark -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: ma...@isc.org -- 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
