From: J Bacher (jb@jbacher.com)
Date: Tue Nov 12 2002 - 14:27:19 EST
In light of the recent advisory for bind 8.3.3-REL, I would like to move
recursive DNS services over to a machine running 9.2.1 (or upgrade it to 9.2.2)
The 8.3.3 machine has a slower CPU (5/500), half the memory (1Gb), and an
older operating system (4.0d).
The 9.2.1 machine has 2Gb memory and runs Tru64 5.1a with all patch kits
and is a dual 5/533.
When testing with the 9.2.1 machine, we hit the typical "no more recursive
clients" error when we had the number of recursive clients set to 20,000
(we started testing with 8,000). We have not tested with the tcp-clients
configuration parameter. We found that even with an incredibly low volume
of customers pointing to the 9.2.1 server, we still received this error.
I'm looking for reliable feedback from people using Tru64 with 9.2.1 as to
how many recursive clients are set per 1,000 customers [preferably in an
ISP environment].
Goggling around only provides the suggestion that either the machine is not
capable of handling 9.2.x or there is a problem with recursive queries
(getting resolution or an insufficient number of clients in the
configuration file) or that there is insufficient memory.
I find it difficult (though perhaps its true) that 9.2x has that much more
memory overhead than 8.3.x.
Our 8.3.3 machine currently handles some 17k-20k total customer base today
without issue.
Any 9.2.x success stories along with the bind parameters you use would be
helpful.
Tia.
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