Is caching necessary?

[Kevin Darcy]

Lorenzo wrote:

>I have a DNS server setup for my home LAN. Yes, its a bit much, but 
>everyone needs a hobby. I was reading a message from a mailing list 
>where the poster said DNS caching is not necessary in many cases. He 
>went on to list reasons why, including the fact that one can avoid cache 
>poisoning. Of course, if one passes queries onto a poisoned server, the 
>result can be just as bad. But that aside, what are the benefits of 
>caching for someone like me? Currently, I forward my queries onto my 
>ISP, which if I understand things correctly, means I'm not caching 
>anyway.
>
No, forwarding still caches, and you're benefiting from that caching 
behavior. If you lose connectivity to your ISP's nameserver for more 
than, say, a minute while you're web browsing, you'll *really* notice 
the difference...

                                                                         
                                                         - Kevin

P.S. Why are you forwarding? Does your ISP block queries directly 
between your nameservers and Internet nameservers?