samba - Jun 2008 - WINS server looses election irregular in a heterogeneous network

Dear Samba-Users,

I have to administer a Samba WINS Server in a heterogenous network. It's a
student hostel with about 200 mixed (Windows, Linux, Mac OS X) computers. We
have a DHCP, which delivers the WINS-Server address to the clients. I don't
have access to the clients.

The problem is, that the WINS-Server (Samba 3.0.27) looses the
Master-Browser election irregulary. I can't configure Samba a way, that
it keeps the MSB.

Example from the log.nmbd:

==[2008/06/09 22:15:45, 0]
nmbd/nmbd_incomingdgrams.c:process_local_master_announce(309)
process_local_master_announce: Server GUERO at IP 10.0.80.221 is announcing
itself as a local master browser for workgroup WODANLAN and we think we are
master. Forcing election.
[2008/06/09 22:15:45, 2]
nmbd/nmbd_become_lmb.c:unbecome_local_master_browser(280)
unbecome_local_master_browser: unbecoming local master for workgroup
WODANLAN on subnet 10.0.80.5
[2008/06/09 22:15:45, 0]
nmbd/nmbd_become_lmb.c:unbecome_local_master_success(149)
*****

Samba name server SHODAN has stopped being a local master browser for
workgroup WODANLAN on subnet 10.0.80.5

*****
==
SHODAN is the name of the server. Today it's GUERO, who is winning the
election. Yesterday, it was another computer.

When I restart the smbd/nmdb it wins the election and the network browsing
operates normally. Is there any way to be sure, that SHODAN keeps the MSB?

At the moment I have a cron, which restarts the smb-server every 30 minutes,
so that it wins the election and becomes the MSB, but that's really a nasty
thing.

This is my configuration:

smb.conf:
==[global]
workgroup = WODANLAN
netbios name = Shodan
server string = Wodanlan Master Browser
hosts allow = 10.0.80.
log level = 2

domain master = yes
local master = yes
preferred master = yes
enhanced browsing = Yes
os level = 255

wins support = yes
dns proxy = no
==
Can you help me?

Thank you very much
Timo Meinen
timomeinen@googlemail.com

Have you tried setting your "announce version" instead of just
manipulating OS level?

   announce version = 4.9  is the default, which is less than XP for example.

Perhaps an "announce version = 5.3" would solve your problem, I dunno.

--Charlie



On Wed, Jun 11, 2008 at 4:52 AM, Timo Meinen <timomeinen@googlemail.com>
wrote:
> Dear Samba-Users,
>
> I have to administer a Samba WINS Server in a heterogenous network.
It's a
> student hostel with about 200 mixed (Windows, Linux, Mac OS X) computers.
We
> have a DHCP, which delivers the WINS-Server address to the clients. I
don't
> have access to the clients.
>
> The problem is, that the WINS-Server (Samba 3.0.27) looses the
> Master-Browser election irregulary. I can't configure Samba a way, that
> it keeps the MSB.
>
> Example from the log.nmbd:
>
> ==> [2008/06/09 22:15:45, 0]
> nmbd/nmbd_incomingdgrams.c:process_local_master_announce(309)
> process_local_master_announce: Server GUERO at IP 10.0.80.221 is announcing
> itself as a local master browser for workgroup WODANLAN and we think we are
> master. Forcing election.
> [2008/06/09 22:15:45, 2]
> nmbd/nmbd_become_lmb.c:unbecome_local_master_browser(280)
> unbecome_local_master_browser: unbecoming local master for workgroup
> WODANLAN on subnet 10.0.80.5
> [2008/06/09 22:15:45, 0]
> nmbd/nmbd_become_lmb.c:unbecome_local_master_success(149)
> *****
>
> Samba name server SHODAN has stopped being a local master browser for
> workgroup WODANLAN on subnet 10.0.80.5
>
> *****
> ==>
> SHODAN is the name of the server. Today it's GUERO, who is winning the
> election. Yesterday, it was another computer.
>
> When I restart the smbd/nmdb it wins the election and the network browsing
> operates normally. Is there any way to be sure, that SHODAN keeps the MSB?
>
> At the moment I have a cron, which restarts the smb-server every 30
minutes,
> so that it wins the election and becomes the MSB, but that's really a
nasty
> thing.
>
> This is my configuration:
>
> smb.conf:
> ==> [global]
> workgroup = WODANLAN
> netbios name = Shodan
> server string = Wodanlan Master Browser
> hosts allow = 10.0.80.
> log level = 2
>
> domain master = yes
> local master = yes
> preferred master = yes
> enhanced browsing = Yes
> os level = 255
>
> wins support = yes
> dns proxy = no
> ==>
> Can you help me?
>
> Thank you very much
> Timo Meinen
> timomeinen@googlemail.com
> --
> To unsubscribe from this list go to the following URL and read the
> instructions:  https://lists.samba.org/mailman/listinfo/samba
>

Hallo, Timo,

Du (timomeinen) meintest am 11.06.08:
> ==> [2008/06/09 22:15:45, 0]
> nmbd/nmbd_incomingdgrams.c:process_local_master_announce(309)
> process_local_master_announce: Server GUERO at IP 10.0.80.221 is
> announcing itself as a local master browser for workgroup WODANLAN
> and we think we are master. Forcing election.
> [2008/06/09 22:15:45, 2]
> nmbd/nmbd_become_lmb.c:unbecome_local_master_browser(280)
> unbecome_local_master_browser: unbecoming local master for workgroup
> WODANLAN on subnet 10.0.80.5
> [2008/06/09 22:15:45, 0]
> nmbd/nmbd_become_lmb.c:unbecome_local_master_success(149)
> *****
> Samba name server SHODAN has stopped being a local master browser for
> workgroup WODANLAN on subnet 10.0.80.5
What kind of OS runs on 10.0.80.221?
If it's Linux, and if there runs a Samba server too: which OS level has  
that server?

Viele Gruesse!
Helmut

Hallo Helmut,



I am pretty sure the IP 221 is a Windows PC, but it doesn't really
matter, because may be a week it is IP 123, who is winning the
election, another week it's 213 who is winning and so on.


We found out, that its always a Windows PC, which is announcing itself
as a Master Browser.

It's really curious, because if I restart "my" samba server, it
_always_ wins the election. The problem arises, if the samba server is
some hours online.

Is it an unavoidable problem, which exists in an heterogenous
Win/Linux network or is my samba misconfigured?

Thank you very much.

Gl?ck Auf,
Timo


To: samba@lists.samba.org
Date: 20 Jun 2008 06:22:00 +0200
Subject: Re: [Samba] WINS server looses election irregular in a
heterogeneous network
Hallo, Timo,

Du (timomeinen) meintest am 11.06.08:
> ==> [2008/06/09 22:15:45, 0]
> nmbd/nmbd_incomingdgrams.c:process_local_master_announce(309)
> process_local_master_announce: Server GUERO at IP 10.0.80.221 is
> announcing itself as a local master browser for workgroup WODANLAN
> and we think we are master. Forcing election.
> [2008/06/09 22:15:45, 2]
> nmbd/nmbd_become_lmb.c:unbecome_local_master_browser(280)
> unbecome_local_master_browser: unbecoming local master for workgroup
> WODANLAN on subnet 10.0.80.5
> [2008/06/09 22:15:45, 0]
> nmbd/nmbd_become_lmb.c:unbecome_local_master_success(149)
> *****
> Samba name server SHODAN has stopped being a local master browser for
> workgroup WODANLAN on subnet 10.0.80.5
What kind of OS runs on 10.0.80.221?
If it's Linux, and if there runs a Samba server too: which OS level has
that server?

Viele Gruesse!
Helmut