[aklug] Bind/DNS TTL override

From: Scott A. Johnson <scott.a.johnson@gmail.com>
Date: Sat May 21 2011 - 02:35:03 AKDT

I'm running a local recursive Bind server on my LAN to help speed up
repetitive DNS lookups due to a high latency satellite connection. The
thought process being for every DNS record I can look up locally from a
previously cached copy, that shaves 600ms+ off my load times. The problem
is that so many sites these days use really low TTL in their DNS records for
load balancing, almost making the local DNS server useless. The fact I may
have unintended consequences by overriding their TTL notwithstanding, can I
somehow override the TTL given to Bind for domains/zones to a higher value?
 I've done some Google searches but can't find too many/any people looking
to do the same thing. I'm not married to Bind either, so if I can do this
through another caching/recursive DNS daemon I'm fine with that too.
Thanks.

-- 
Scott A. Johnson
scott.a.johnson@gmail.com
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Received on Sat May 21 02:35:31 2011

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