Setting up a Root name server

[Barry Margolin]

In article <37D064C6.C2F7DC74 at megabytecoffee.com>,
chris  <chris at megabytecoffee.com> wrote:
>Well, there are also sites that run 60 second TTL's. I've seen them, I
>think they
>are insane for doing so, but they do.

Your root server won't get any improvement on these.  All you're saving is
the lookups of delegation NS records from root/COM servers, and they all
have 2-day TTLs.

>> Local copies of the top-level domains could be useful if you were running
>> applications that performed enormous numbers of DNS lookups in rapid
>> succession.  For instance, a web server log analyzer would probably be sped
>> up noticeably if you had a local copy of the IN-ADDR.ARPA zone.  You could
>> also perform well on DNS benchmarks.  However, I think you'd see less
>> benefit to normal user DNS lookups.
>
>Ok, how about 10,000+ users hammering the DNS?

Each one of them will see a 40ms speedup each time they access a web site
for a domain whose NS records wouldn't have been cached.  They won't
notice unless they're running applications that do DNS lookups in tight
loops (like log analysis programs).

-- 
Barry Margolin, barmar at bbnplanet.com
GTE Internetworking, Powered by BBN, Burlington, MA
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