[question] new bind option "max-recursion-depth"

Techs_Maru tecabu at gmail.com
Wed Dec 17 04:30:35 UTC 2014


Thank you for replying.

I was able to understand,
try setting to test servers.

if the value of the default "7" would be the value that was created
based on the world data ?
( Also for the default value of "max-recursion-queries 50;" )

I want to know the recommended settings for everyone to values.


//// Maru

2014-12-16 15:34 GMT+09:00 Evan Hunt <each at isc.org>:
> On Tue, Dec 16, 2014 at 11:13:17AM +0900, Techs_Maru wrote:
>> But, "max-recursion-depth",
>> However, it tried but it did not become a Servfail.
>> Meaning of is is "Indirections" is described in the document, it means
>> that when the authority server that does not come directly returns the
>> IP address, such as the NS and CNAME?
>> Default 7 times the number of times that follow that?
> Suppose a zone is served by name servers in another zone:
>         example.com. IN NS ns1.example.org.
>         example.com. IN NS ns2.example.org.
> So named has to look up ns1.example.org to find that name server.
> That adds a layer of recursion depth.  Now, if example.org is served
> out of yet another zone:
>         example.org. IN NS ns1.example.net.
>         example.org. IN NS ns2.example.net.
> ...that adds another layer.  Named will give up after 7 such
> indirections.
> --
> Evan Hunt -- each at isc.org
> Internet Systems Consortium, Inc.

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