Question about name resolution for multi-homed machines

[Kevin Darcy]

Is it sufficient for both addresses to be returned in the response, but with the
order of the addresses determined by the source address of the client, e.g. clients
on 10.*.*.* will get the 10.0.0.5 address first, clients on 192.168.*.* will get
the 192.168.0.5 address first? If so, then this is fairly easy to implement with
the "sortlist" option in BIND.

If you really truly need to give out different answers to different clients, then
BIND 9's "view" mechanism can be used to accomplish this, but you'll have to
maintain two different copies of the same zone.


- Kevin

Tom Williams wrote:

> Hi!  Please excuse me if this is the wrong newsgroup for this question and
> *please* direct me to the correct newsgroup.  I have a machine with TWO network
> cards and TWO IP addresses:
>
> 10.0.0.5
> 192.168.0.5
>
> I'm currently using a Windows NT dns and I have this machine defined with BOTH
> IP addresses being resolved to the same hostname:
>
> bash-2.04$ nslookup mybox.domain.com
> Server:  mydsn.domain.com
> Address:  10.0.0.2
>
> Name:    mybox.domain.com
> Addresses:  10.0.0.5, 192.168.0.5
>
> bash-2.04$
>
> Now, when I do repeated nslookups on "mybox.domain.com", the IP addresses
> returned by the dns will toggle back and forth.  My question is:  can the dns be
> configured to return ONLY the IP address for the network the requesting machine
> is on?  So, if a machine on the 10.0.0.0 network does a ping on
> "mybox.domain.com" ONLY the 10.0.0.5 IP address would be returned by the dns and
> NOT the 192.168.0.5 address?   Can bind on Unix be configured to do this if not
> all dns servers on various platforms?
>
> Thanks in advance for your time and help!
>
> Peace......
>
> Tom