On Fri, 2007-01-05 at 12:41 +0100, Mogens Kjaer wrote: > Dan Track wrote: > ... > > Thanks for your reply. IF the first DNS replies with the "no such > > domain" then why doesn't the check query the other remaining two DNS > > servers, why does the DNS query stop at the first DNS server? > > Because it gets an answer from the first server. > > You might not like the answer, but that is another > question In my prior experience with Unix, the DNS server system was set up so that there was a "master" server and a number of slave servers. They all had the same information. Thus a negative response from one was equivalent to the same answer from all. So, a negative response means the name is not valid. No need to search the other DNS's. Therefore if you have DNS's that don't match, probably a push of the DNS database is required. The admin in a Unix system is responsible for maintaining that database and pushing the change to the slaves. I don't know if this is the reason you are looking for, but it is the one that I believe answers the question. Regards, Les H
