[Samba] DNS Round Robin not working?

[Rowland Penny]

On Wed, 19 Sep 2018 13:36:42 -0700
Kris Lou via samba <samba at lists.samba.org> wrote:

> Hi all,
> 
> I seem to have run into a case where my DC's aren't being
> round-robin'ed by DNS.  I've got 3 DC's using Internal DNS, but every
> time I ping mydomain.com and check the results
> (ipconfig /displaydns), it's always in the same order.
> 
> The same order appears when I query the DC's directly, individually:
> 
> # nslookup mydomain.com 172.23.51.5
> 
> Server:         172.23.51.5
> Address:        172.23.51.5#53
> 
> Name:   mydomain.com
> Address: 172.23.51.5
> Name:    mydomain.com
> Address: 172.23.51.3
> Name:    mydomain.com
> Address: 172.19.27.10
> Name:    mydomain.com
> Address: 172.23.51.6
> 
> 
> Does anybody know how this can occur? I am running two sites
> (172.19.27.10 is on a different site, the others are local), if that
> matters.
> 

I run Bind9 on 2 DC's and it works for me, but one thing I did note.
You say you have 3 DC's, but there appears to be 4 ipaddresses
associated with the domain, what is the fourth ?

Rowland