BIND 'sortlist' preferred IP address

[Michael Voight]

There is some confusion. The sortlist order is done in order without
round robin. I am not aware of any way to configure a DNS server with
multiple addresses to only return a single address. Why would it matter
if multiple addresses were return as long as the sortlist order was
followed?  Are you saying you do not want any backup in case the one
server was unreachable?

The only thing I know that returns one address based on distance is
Distributed Director using DRP. It might be comforting to know that a
lot of clients will only attempt a connection to the first address it
gets.

Michael

elam99 at hongkong.com wrote:
> 
> Sorry, I didn't make it clear.  What I mean by '1-and-only-1
> IP address' is returnining '1-and-only-1 IP address' to the
> DNS client based on the DNS client source IP/network.  So,
> if the DNS client is at network A, my DNS server would
> return x.x.x.x EVERYTIME, and if the DNS client is at
> network B, my DNS server would return y.y.y.y EVERYTIME.
> I notice that although the 'sortlist' could sort the
> response based on the DNS client source network address,
> however, it might return the sorted list in a round-robin
> fashion which means that it might return different I
> address everytime instead of the '1-and-only-1 IP address'
> EVERYTIME.  So, Is it possible to return the '1-and-only-1
> IP address' EVERYTIME ???
> 
> > >>>>> "Edmund" == Edmund Lam <elam99 at hongkong.com> writes:
> >
> >     Edmund> Is there any way to make BIND 8.2.1 to return the
> >     Edmund> 'sortlist' sorted most preferred 1-and-only-1 IP address
> >     Edmund> EVERYTIME instead of the 'sortlist' sorted round-robin list.
> >
> > Eh? If there is "1-and-only-1 IP address", what is there to sort or
> > round-robin?
> 
> ___________________________________________________________________________
> Get your hongkong.com freemail at http://www.hongkong.com
> Free newsletters center at http://post4u.hongkong.com