allow query / allow recursion confusion

[Kal Feher]

On 21/6/07 1:14 PM, "Clenna Lumina" <savagebeaste at yahoo.com> wrote:

> 
> Doesn't setting
> 
>    recursion no;
> 
> do that too?
No, I'll elaborate below from the 9.4 ARM:

"allow-recursion

Note that disallowing recursive queries for a host does not prevent the host
from retrieving data that is already in the server's cache."

and

"recursion

     Note that setting recursion no does not prevent clients from getting
data from the server's cache; it only prevents new data from being cached as
an effect of client queries. Caching may still occur as an effect the
server's internal operation, such as NOTIFY address lookups."

So we now use:

"allow-query-cache

    Specifies which hosts are allowed to get answers from the cache. The
default is the builtin acls localnets and localhost. "


HTH





-- 
Kal Feher