In <[EMAIL PROTECTED]> Brad Knowles <[EMAIL PROTECTED]> writes:

>       I think we need to get the DNS load-balancing stuff
>       re-worked. The large list of NS records for the zone, combined
>       with the large list of A records, is causing DNS packet
>       truncation.  For example:

I question whether we really need as many secondary name servers as
are currently being used.  We currently have 9, which is 3 more than I
have for a anti-spam DNSWL that I run.  How many DNS lookups/day are
being made to pool.ntp.org right now?

Cutting back to, say, 3 or maybe 4 name servers would significantly
cut down on the packet size.  The NS records tend to be much larger
than A records because they have a domain, instead of a 4 byte IP
address, and for each NS record, the software tries to add an A
record.



Also, the 2 minute TTL for the A records is probably too short.  I
don't see much reason to make them shorter than the zone regeneration
time, and the could be somewhat longer.


-wayne
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