samba - Nov 2016 - which NIC is samba4 AD using ?

1. I need to know by using a command -if possible- or antoher way, which NIC is
samba AD using? Apart of looking for the 'interfaces' option in the
smb.conf. So, Exists other way to know that? Because if I coding this method
expecting for the smb.conf, I could have problems if smb.conf has been deleted.

2. If during provisioning a DC I don't specify the network interface Samba
select one randomly. In case of my server have just one NIC: is there any
difference between specifing the NIC or not?

Rgrds, 
Ing. Felipe_ González_Santiago 
Universidad de las Ciencias Informáticas 
Centro de Software Libre 

The University of Informatics Sciences invites you to participate in the
Scientific Conference UCIENCIA 2016, November 24-26.
Conferencia Científica UCIENCIA 2016, del 24 al 26 de noviembre.
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Hello Felipe,

Am 14.11.2016 um 14:47 schrieb Felipe_G0NZÁLEZ_SANTIAG0 via
samba:
> 1. I need to know by using a command -if possible- or antoher
> way, which NIC is samba AD using? Apart of looking for the
> 'interfaces' option in the smb.conf. So, Exists other way
> to know that? Because if I coding this method expecting
> for the smb.conf, I could have problems if smb.conf has
> been deleted.
If your smb.conf has been deleted, your DC is in trouble. At least when
you (re-)start the service the next time. :-)

Since "testparm --parameter-name" won't show you the options for
the
interface parameter on a DC, if not set, you can use the output of
# netstat -tlpn | grep "samba"
and pipe it through sort/uniq/awk to get the IP addresses, Samba is
listening on.



> 2. If during provisioning a DC I don't specify the network
> interface Samba select one randomly. In case of my server
> have just one NIC: is there any difference between
> specifing the NIC or not?
This depents. If Samba auto-selected the network where your clients are,
then you have luck. If it selects the other, or you have AD clients in
both networks, they are not able to connect to the AD.

If you server is having multiple interfaces, pass the
--option="interfaces=lo eth0" --option="bind interfaces
only=yes"
parameters to the "samba-tool" command during provisioning/joining.
This
enables you to select the correct interface(s).


Regards,
Marc