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Adjusting the Windows XP DNS Negative Cache Settings

Adjusting the Windows XP DNS Negative Cache Settings

Postby its.fubar » Wed Nov 06, 2002 3:10 pm

I come across this hack I believe it really work
If a Carrot could think what would happen to all the Cabbages

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Postby SCJwl » Wed Nov 06, 2002 3:54 pm

I thought this might be more appropriate in the Tips and Tweaks Section.
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Postby its.fubar » Wed Nov 06, 2002 7:01 pm

SCLwl You are probably right ?
If a Carrot could think what would happen to all the Cabbages

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Postby SCJwl » Wed Nov 06, 2002 7:06 pm

BTW, where did you come accross this?
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Postby Weaver » Thu Nov 07, 2002 1:45 am

This negative caching can be very helpful at times, but it often creates more problems than it solves.


What problems have you run into with negative caching turned on? Curious.

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The primary purpose of the DATA statement is to give names to constants; instead of referring to pi as 3.141592653589793 at every appearance, the variable PI can be given that value with a DATA statement and used instead of the longer form of the constant. This also simplifies modifying the program, should the value of pi change.
-- FORTRAN manual for Xerox Computers
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Postby ^Kaji » Thu Nov 07, 2002 1:52 am

If the ip of the site you are trying to get to changes and you hit that site before the DNS servers update, you get a 404 of course. But with negative caching on it will cache that 404 and won't try the DNS server again until the internal cache is reset, however long that takes.
^Kaji

Postby Weaver » Thu Nov 07, 2002 2:12 am

Now that you mention it, I have had that happen. Thanks for the tip.

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The primary purpose of the DATA statement is to give names to constants; instead of referring to pi as 3.141592653589793 at every appearance, the variable PI can be given that value with a DATA statement and used instead of the longer form of the constant. This also simplifies modifying the program, should the value of pi change.
-- FORTRAN manual for Xerox Computers
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Postby SCgone » Thu Nov 07, 2002 4:08 am

Strange thing is, I've never made this change, but yet it's already done by default on my system.
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Postby Mac33 » Thu Nov 07, 2002 10:34 am

That's interesting Bob
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Postby SCgone » Thu Nov 07, 2002 8:58 pm

Then again, all my homemade systems, tend to operate a tad strange at times.
mac33 wrote:That's interesting Bob
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