On Feb 16, 2010, at 10:24 PM, Frank Bulk wrote: > We do. It's at our upstream provider, just in case we had an upstream > connectivity issue or some internal meltdown that prevented those in the > outside world to hit our (authoritative) DNS servers. Of course, that's > most helpful for DNS records that resolve to IPs *outside* our network.
What you describe - authorities used by people off your network to resolve A records with IP addresses outside your network - is not what Joe was describing. What the recursive name server your end users queried to resolve names, the IP address in their desktop's control panel, outside your network? I can see a small ISP using its upstream's recursive name server. But to the rest of the world, most small ISPs look like a part of their upstream's network. -- TTFN, patrick > === > <snip> > > For what it's worth, I have never heard of an ISP, big or small, > deciding to place resolvers used by their customers in someone else's > network. Perhaps I just need to get out more. > > Joe > > >
