>... > >Rob, > >... > >For example, if you do a lookup on blahblah.yourdomain.com and that domain >... >doesn't exist. Next, seconds later, create an A-record for >blahblah.yourdomain.com ...finally, seconds later, do another lookup for >blahblah.yourdomain.com > >In my testing, that last lookup DOES find something... indicating that DNS >servers don't generally cache previously "not found" lookups... at least not >for long.
Be vary careful with this one. If indeed you are testing "yourdomain", it is possible that the server checked is authoritative for the domain and then *no* caching was done; Are you certain that you checked using a different server that was not authoritative; Otherwise the test was invalid and needs to be redone. > >... > >--Rob McEwen > Paul Shupak [EMAIL PROTECTED]