If the records which are being requested are in the DNS server's cache then it may return the records directly from cache (depends on your configuration). If the record isn't in the cache it will attempt to fetch it and return it to the client, it will then be placed in the cache so subsequent queries for that data will be returned direct from cache.
A response will be returned as authoritative when the server is an authority for that zone, as in it has been configured to serve the zone*. Steve * Whether you actually have the right to serve that zone as authoritative is another matter, for example I could easily create a zone called microsoft.com and serve it out to my local clients and they would be none the wiser (well other than it's not the real microsoft.com), if you tried to serve it externally to the Internet though it would be ignored as the DNS hierarchy for microsoft.com goes no where near your server and points at Microsoft's DNS servers. On 3 June 2013 20:36, Ward, Mike S <mw...@ssfcu.org> wrote: > Hello all, I was trying to follow the thread on the NXDOMAIN and got lost. :) > I have a question about using forwarders. If the DNS that is using forwarders > receives a query for a zone it's not authoritative for even if it's in the > same network, does it go to the forwarders for zone information? I'm trying > to get my head around what was discussed in the NXDOMAIN thread. What makes a > DNS authoritative for a zone? > > ========================== > This email, and any files transmitted with it, is confidential and intended > solely for the use of the individual or entity to which it is addressed. If > you have received this email in error, please notify the system manager. This > message contains confidential information and is intended only for the > individual named. If you are not the named addressee, you should not > disseminate, distribute or copy this e-mail. Please notify the sender > immediately by e-mail if you have received this message by mistake and delete > this e-mail from your system. If you are not the intended recipient, you are > notified that disclosing, copying, distributing or taking any action in > reliance on the contents of this information is strictly prohibited. > _______________________________________________ > Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe > from this list > > bind-users mailing list > bind-users@lists.isc.org > https://lists.isc.org/mailman/listinfo/bind-users _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
