Can someone explain forwarders and why I don't need them?

[Alex Hulse]

Joseph S D Yao wrote:

> No!  Once you have looked up ".org" once, the list of ".org" servers
> stays until it expires.  Same with "isc.org" and "www.isc.org".  As you
> gather your set of most-often-used domains into your cache, the lookups
> will come from cache and be very fast.
> 
> Besides, what's half-way across the Internet?  The max you can go is
> roughly 12,000 miles in any direction [as the crow flies],and those
> electrons are pretty fast.  ;-)
> 
> 
>>			     ..? Or should I use a forwarder and point 
>>them to my ISP's DNS servers? Or is there another way of achieving this one?
> 
> 
> This is unlikely to be a good idea.
> 


Thanks for your further patient replies. Suffice to say I think I've got 
quite a bit to learn, and so the O'Reilly book is on its way...

Alex