brad at stop.mail-abuse.org
Mon Jun 6 20:47:20 UTC 2005
At 8:37 PM -0700 2005-06-05, aatcbbtccctc at yahoo.com wrote:
> Say I type a non-existant URL; for example,
> When I do that, from a PC in Australia, I get an instant error that the
> URL does not exist. The delay is imperceptible. I feel that there has
> not been enough time to send a query right back through to a root
Your servers have cached the IP address information for the .com
gTLD servers, and your servers will know which of them gives you the
Try capturing all the network traffic to/from your nameservers
during this period of time, and you should see that it takes just a
relatively few milliseconds for your server to go contact the gTLD
servers and come back with an NXDOMAIN response, which is then passed
up the chain to your browser.
Brad Knowles, <brad at stop.mail-abuse.org>
"Those who would give up essential Liberty, to purchase a little
temporary Safety, deserve neither Liberty nor Safety."
-- Benjamin Franklin (1706-1790), reply of the Pennsylvania
Assembly to the Governor, November 11, 1755
SAGE member since 1995. See <http://www.sage.org/> for more info.
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