caching data

[Wittenberg, Chris]

Since you mentioned this, I just have to ask:

1. How would you 'confirm' or 'notice' that your cache is poisoned?
2. What are the ramifications of dumping the cache (longer lookups while it
rebuilds?).
3. Is there a recommended point at which you should run the 'rndc dumpdb' as
a matter of course - or just when you think something is wrong?
4. Is the cache dumped when you do a "kill -HUP pid"? Why is "rndc reload"
preferred over kill (or is it), and does the "rndc reload" dump the cache?

Thanks!

-Chris 



-----Original Message-----
From: Michael Kjorling [mailto:michael at kjorling.com]
Sent: Wednesday, August 08, 2001 8:01 AM
To: BIND-Users
Subject: Re: caching data



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Dump the cache.

	ndc dumpdb
	rndc dumpdb

I am not aware of any way to delete only a few known records out of
the cache.


Michael Kjörling


On Aug 8 2001 10:51 +0700, viet anh wrote:

> I am using bind 9.1.3 as name server. I know that bind can cache data in
> name server's memory.
> In case my name server was poisioned by incorrect data and cached this
> data in memory. I want to delete this poinsioned data, but how to do
> this.
> Can you direct me how to delete caching data if I know this data was
> poisioned
> Thank very much

- -- 
Michael Kjörling - michael at kjorling.com - PGP: 8A70E33E
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