"Recursive no;" implications?

[Mark Andrews]

In message <09DCBF8A-3D91-430D-BEEE-4E7287642716 at kreme.com>, LuKreme writes:
> If you set recursion no; in named.conf, you need to set the forwarders as wel
> l. Is there anything else that must be done so that DNS queries still work?

Forwarders will have no effect once recursion no; is set as forwarders only
change the server used when named recurses.

> If you have master/slave servers you should specify allow-recursion for your 
> subnet instead, right? I'd you do this, you don't need to set forwarders, yes?

Allow-recursion has no impact on master / slave zones.
 
> And finally, can you specify a slave DNS against a CNAME or must it have a rD
> NS and an A record?

No.  NS records need to refer to nodes with A and/or AAAA records.  Reverse
DNS is irrelevent to the delegation.
 
> For example
> 
>   NS ns1.example.com.
>   NS ns2.example.com.
> 
> Ns1.  A  12.34.56.789
> Ns2   CNAME name.someothername.tld
> 
> Where the server at the CNAME doesn't have rDNS?
> 
> 
> _______________________________________________
> Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe
>  from this list
> 
> bind-users mailing list
> bind-users at 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: marka at isc.org