DNS/Bind Blackhole - Not MX

Barry Margolin barmar at alum.mit.edu
Fri Dec 23 17:31:49 UTC 2005


In article <doh6e7$27ve$1 at sf1.isc.org>,
 "Sir Galahad" <sgalahad at rcn.com> wrote:

> Hi all,
> I'm new to DNS, but have a question about blackholes.  This isn't for SPAM
> and MX blackhole lists, but rather blackholing DNS servers that are known to
> report incorrect information due to mis-configuration or neglect.  Is this
> even something I should be worried about?  Is it something anyone else does
> with their bind server on a regular basis and if so, is it often?  I just
> trying to get a sense of the importance of it.

I think it's usually used in response to special circumstances.  For 
instance, if you discover that a server is trying to poison cache, or 
it's bombarding you with lots of inappropriate queries, you may want to 
blackhole it.

-- 
Barry Margolin, barmar at alum.mit.edu
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***
*** PLEASE don't copy me on replies, I'll read them in the group ***



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