Christopher R. Hertel
crh at nts.umn.edu
Wed Jul 19 23:35:23 GMT 2000
> I would have thought that any half-decent DNS implementation would
> already be caching things several places along the way. So if you want
> to implement your own caching layer, fine, but I don't know that it's
> of paramount importance.
The lookup still takes time. It's more packets on the wire, and if the
DNS server is overloaded it will really slow things down. Why look it up
every three seconds? We only need to look it up once and keep the result.
> > If the WINS server is marked 'dead', then I clear the IP address
> > and look it up again when the WINS server is alive again. A failed
> > lookup kills the entry, so the code won't repeat the lookup for
> > another ten minutes.
> Yes! *Exactly* the semantics I would have suggested.
Sometimes I think I might just have half a clue.
Christopher R. Hertel -)----- University of Minnesota
crh at nts.umn.edu Networking and Telecommunications Services
Ideals are like stars; you will not succeed in touching them
with your hands...you choose them as your guides, and following
them you will reach your destiny. --Carl Schultz
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