Traffic on ROOT/GTLD-Servers
Martin Köhling
mk at lw1.cc-computer.de
Tue Jun 12 15:17:11 UTC 2001
Hi!
On Tue, 12 Jun 2001, Matt Spiers wrote:
>
> Interesting read, was wondering about the validity of this part of the
> Conclusion:
>
> "BIND 8 does negative caching but not by default. BIND 9 turns it
> on by default but is not yet widely deployed."
>
>
> If this is true, how do you enable negative caching in BIND 8?
The configuration file guide that comes with 8.2.3-REL has
this section (in the options section):
max-ncache-ttl
To reduce network traffic and increase performance the server
stores negative answers. max-ncache-ttl is used to set a
maximum retention time for these answers in the server is
seconds. The default max-ncache-ttl is 10800 seconds (3 hours).
So it seems that nagative caching *is* enabled by default in
recent bind8 versions - or isn't it?
Regards,
Martin
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