non-recursive request to forwarders

[Kevin Darcy]

Valentin Nechayev wrote:

> How to setup named to query names from forward servers for particular zone
> using nonrecursive queries?
>
> We found it is very comportable to specify forwarders for specific zones
> to be independent of connectivity to the world. But for some zones, it is
> impossible to use only servers which are recursive for us. A real example:
> average large ISP in Ukraine has good and stable connectivity over Ukraine
> and much less stable (and more expensive) connectivity to world. Specifying
> zone "ua" { type forward; forwarders { ... }; }; with list of forwarders mostly
> based in Ukraine saves nameservers to resolve queries for *.ua even when
> reloaded during world connectivity failure. Similarly, it is useful to
> record a bunch of other large providers. But named sends recursive
> queries, and admins of these nameservers send complaints.
>
> Of course, admin of such nameserver will track changes in NSes for the zone
> specified as forward. But for TLD these changes are known for a few months
> before real change ;)

Try using stub zones instead.


- Kevin