DNS: define record subset for a domain and forward the rest

[Vieri]

Hi,

I'm wondering if I can define a zone in /etc/bind/pri, say, mydomain.org.zone.
I would set only a few A records there such as:

test A 10.0.0.1

I would like to forward every other DNS lookups for anything else *.mydomain.org to a public DNS server.

This is because I want some of my local DHCP WiFi clients to consult my local private DNS server (this Gentoo server) first so I can help them access a specific service "locally". If these clients (which may be BYODs) are out of the local network they will consult the public DNS and resolve "test.mydomain.org" with a public IP address.

I cannot duplicate the whole mydomain.org zone on my Gentoo server.

Regards

[szatox]

1) Bind supports views, you can filter queries by IP and provide one response or another based on who's asking, this way you'd only need 1 set of publicly available DNS servers.
2) Bind can act as a master server for particular zones and caching DNS for everything else. You can use this to override/shadow results for some particular hosts. Collecting those hosts under a single subdomain would make this setup easy to manage.

3) Finally, you _CAN_ delegate NS for * to the public server and NS for specific subdomains to your server and create the same zone (with the same delegations) on both sides, but should you?
I mean, I don't see a technical reason why it wouldn't work, but I still find this solution repulsive, so... While it certainly is an option, 1 or 2 are IMO way better.

[pa4wdh]

As far as i know this is the default behavior when using forwarders.

In that case you can set forwarders in the global options section, these will be used for all queries.
Next to that you can define local zones. When a local zone is defined it is preferred over forwarding.
_________________
The gentoo way of bringing peace to the world:
USE="-war" emerge --newuse @world

My shared code repository: https://code.pa4wdh.nl.eu.org
Music, Free as in Freedom: https://www.jamendo.com