In message <4e2de4bb.6050...@chrysler.com>, Kevin Darcy writes: > On 7/24/2011 2:15 AM, Vbvbrj wrote: > > options { > > allow-transfer { none; }; > > recursion yes; > > forward first; > > forwarders { a.b.c.d; }; // Forward to providers dns. > > }; > > zone "my_domain.com" IN { > > type forward; > > forward only; > > forwarders { a.b.c.d; }; // Forward to Windows DNS. > > }; > > > > I would like BIND to respond to local LAN like this: All queries for > > local domain my_domain.com to be forwarded to local Microsoft DNS to > > server Acrive Directory. Other queries to sites to forward to external > > dns servers. > > > > But BIND does not forward everything to microsoft dns. I want that > > BIND forward every query and return answer, without any caching so > > that record updating, adding or deleting will be always up-to-date. > > When I try this configuration, BIND not forwarding every query. > Correct. That's the distinction which is typically made between a DNS > *forwarder* (which caches) and a DNS *proxy* (which doesn't). As far as > I know, BIND cannot be configured to be a DNS proxy. > > Answers from its cache, that may be out of date. > > This is tunable via the TTL values on the relevant RRsets. Consult the > manual of your authoritative DNS server software, for details. > > Also, records not always are update when adding or removing computers > > from domain. > Either a) you're just restating the previous problem (answers might be > from cached data) or b) this is a data-consistency or "lag" problem > between various components in Microsoft-land -- BIND cannot fix that.
If one needs a server to be always current then the server needs to serve the zone. It should then receive NOTIFY messages about changes and it can update itself. > - Kevin > > > _______________________________________________ > 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 -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: ma...@isc.org _______________________________________________ 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