Yura Pismerov wrote:
> "SO REFRESH"  and "EXPIRE"  values are irrelevant since we do not
> allow any zone transfers off of our servers at this point.

Fair enough.

> Regarding the TTL, Bruce mentioned in his message that we assign TTL
> an a per record basis and we believe it is sufficient since the
> record based TTL takes precedence in any case.
> Let me know if you have further questions.

Sure, but this adds undue load on my nameserver, and those of my customers
for zones which I know will *never* change.

A DNS lookup may only take you a few milliseconds, but when you're running
on a CDPD modem, 19.2K/s with 2-4 SECOND latency (typical while roaming
off-network), having to wait an extra 15 seconds for a DNS lookup every 5
minutes is a pain.

On the other hand, when I'm planning an IP change of some sort which cannot
have redundancy on two IPs, I usually set my TTL to 60 seconds, that way
users experience almost no downtime (a maximum of 60 seconds, so in reality,
an average of 30 seconds or less)

-- 
Dave Warren,
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