[Bug 1410] without local gateway, a combi-server works unbearable slowly

[drift@skolelinux.org]

http://bugs.skolelinux.org/show_bug.cgi?id=1410


John Sigurd Skogtvedt <jss@bzz.no> changed:

           What    |Removed                     |Added
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                 CC|                            |jss@bzz.no




--- Comment #6 from John Sigurd Skogtvedt <jss@bzz.no>  2009-12-25 17:41:34 ---
(In reply to comment #5)
> Does it work to set it in /etc/powerdns/pdns.d/pdns-debian-edu.conf too?
> If it does, we can consider to set it in debian-edu-config for all
> installations.
> 
> Klaus, why does it help to set this setting?  What are the negative
> consequences? Any idea why this setting isn't the default in powerdns?
> 

Trying to answer this on behalf of Klaus. See:
http://doc.powerdns.com/recursion.html

Quote:
"""
 To make sure that the local authoritative database overrides recursive
information, PowerDNS first tries to answer a question from its own database.
If that succeeds, the answer packet is sent back immediately without involving
the recursor in any way. This means that for questions for which there is no
answer, PowerDNS will consult the recursor for an recursive query, even if
PowerDNS is authoritative for a domain! This will only cause problems if you
'fake' domains which don't really exist.

If you want to create such fake domains or override existing domains, please
set the allow-recursion-override feature (available as of 2.9.14).
"""

In this case we are creating a "fake" domain, as .intern doesn't exist on the
internet. In which case we should follow the recommendation from the powerdns
documentation and enable allow-recursion-override.


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