pharming.. dns cache insertion...

[Barry Margolin]

In article <d36rn1$31cf$1 at sf1.isc.org>,
 "bruce" <bedouglas at earthlink.net> wrote:

> brad,
> 
> doh! hence the question!!!!!
> 
> i got to thinking about this after your 1st email... my basic question was,
> is there a list/compilation of valid IP addresses, taking into account that
> the list is completely dynamic.. has anyone tried to compile such a list?
> how the hell would you even do it?
> 
> my understanding of DNS, and the ancillary issues is quite limited, as i've
> never really had to immerse myself into it...

It's not really feasible.  You would have to crawl the entire DNS 
hierarchy, because delegations can be made at any level.  This requires 
listing the contents of each zone, but many nameservers restrict who can 
list them.

-- 
Barry Margolin, barmar at alum.mit.edu
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***