[Samba] Failover DC did not work when Main DC failed

[Paul Littlefield]

On 03/02/2020 18:49, Kris Lou via samba wrote:
> 
> From windows:
> echo %logonserver%

\\DC3


> nltest /dsgetdc:<domain>

DC:\\DC3
Address: \\192.168.0.218
Dom Guid: bla bla bla
...
The command completed successfully.


>  From a *nix domain member (i.e. client, not DC):
> wbinfo --getdcname=<domain>
> winbind --ping-dc

wbinfo --getdcname=MYDOMAIN
DC3

wbinfo --ping-dc
checking the NETLOGON for domain[mydomain] dc connection to "dc3.mydomain.com" succeeded


> That's probably expected.  I don't think nslookup can query multiple DNS
> servers at once.  But is DC4 actually responding to DNS queries?  Compare
> "nslookup <domain> <DC3-ip>" and "nslookup <domain> <DC4-ip>", which will
> hopefully tell you that both DC3/DC4 are capable of answering queries.

Yep, DC4 is responding to queries.


> This DNS timeout on "standard traffic" is probably what you need to figure
> out then.

OK.


> And I hate to ask, but are both samba and bind set to automatically start
> after boot (on the DC's)?

Yup.

Paully