recursion

[Kevin Darcy]

On 3/10/2010 11:37 AM, ic.nssip wrote:
> If there is no option "recursion yes (or no);" specified in 
> named.conf, is the server still recursive?
> Is "recursion" activated by default if option recursion (yes|no) is 
> missing in named.conf?
Yes, recursion is "activated" by default, but who is or is not allowed 
to recurse in a default configuration, depends on the version of BIND 
you're running. Older versions allow *open* recursion by default. The 
default for modern versions of BIND, if none of the following are set:

recursion
allow-recursion
allow-query-cache
allow-query

is to restrict recursion to { localnets; localhost; }.

But there is cross-inheritance and override behavior among the options 
mentioned above. All of this is explained in the ARM.

                                                                         
                                             - Kevin

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