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, Email Address: dave.warren@devilsplayground.net Cell: (403) 371-3470 Fax: (403) 371-3471 Toll free: (888) 371-3470 Vonage: (817) 886-0860 ICQ: 17848192 AIM: devilspgd Yahoo!: devilspgd MSN/PASSPORT: dave.warren@devilsplayground.net
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