[Samba] WINS server looses election irregular in a heterogeneousnetwork

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_announc e(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(28 0)
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(14 9)
*****

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
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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_announc e(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(28 0)
> 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(14 9)
> *****
>
> 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
>
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Dear Charlie,

thank you for the tip of setting "announce version" to keep Master Browser.
But it just keeps Master Browser for 6 hours. This is the nmb-log:

===

[2008/06/19 23:51:00, 2] nmbd/nmbd_elections.c:run_elections(204)
run_elections: >>> Won election for workgroup WODANLAN on subnet 10.0.80.5<<<
[2008/06/19 23:51:00, 2]
nmbd/nmbd_become_lmb.c:become_local_master_browser(525)
become_local_master_browser: Awaiting potential browser state. Current
state is 4
[2008/06/19 23:51:09, 0]
nmbd/nmbd_incomingdgrams.c:process_local_master_announc e(309)
process_local_master_announce: Server ERSTER at IP 10.0.80.219 is
announcing itself as a local master browser for workgroup WODANLAN and we
think we are master. Forcing election.
[2008/06/19 23:51:09, 2]
nmbd/nmbd_become_lmb.c:unbecome_local_master_browser(28 0)
unbecome_local_master_browser: unbecoming local master for workgroup
WODANLAN on subnet 10.0.80.5
[2008/06/19 23:51:09, 0]
nmbd/nmbd_become_lmb.c:unbecome_local_master_success(14 9)
*****

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

*****
[2008/06/19 23:51:11, 2] nmbd/nmbd_elections.c:send_election_dgram(41)
send_election_dgram: Sending election packet for workgroup WODANLAN on
subnet 10.0.80.5

===

Do you have any other ideas? I don't understand why the election is won when
the server is restarted, but why it is lost, when it keeps a few hours
online.

Best regards,

Timo

2008/6/12, Charlie <medievalist@gmail.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_announc e(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(28 0)
> > 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(14 9)
> > *****
> >
> > 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
> >
>



--
Glück Auf
Timo
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Hallo, Timo,

Du (timomeinen) meintest am 11.06.08:

> ===
> [2008/06/09 22:15:45, 0]
> nmbd/nmbd_incomingdgrams.c:process_local_master_announc e(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(28 0)
> 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(14 9)
> *****

> 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
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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.

Glück 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_announc e(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(28 0)
> 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(14 9)
> *****

> 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
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On Fri, Jun 20, 2008 at 3:24 PM, Timo Meinen <timomeinen@googlemail.com> wrote:
> Hallo Helmut,
>

>
> 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.

Same issue.

I put the following in cron:

#!/bin/sh
PATH=/usr/bin:/usr/sbin:/bin:/sbin
nmblookup -M -- - 2>&1 | grep "IP address of my samba server" >/dev/null 2>&1
if [ $? != 0 ]; then
nmblookup -M -- -|mail -s "Force master browser election" "my email"
/usr/bin/smbcontrol nmbd force-election
fi

The smbcontrol command has the same effect as restarting samba
(election is won).

Then I tell the person using the PC I see in the email to turn off the
"browser" service in his/her XP to avoid the same issue in the future.



--
giulioo@pobox.com
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Dear Giulio,

thank you for the script. I will use it to "solve" my problem. I
searched for a command, which restarts an election.

Although it's not really a good solution, it is much better than my
cron-samba-restart.

Best regards,
Timo

> Same issue.
>
> I put the following in cron:
>
> #!/bin/sh
> PATH=/usr/bin:/usr/sbin:/bin:/sbin
> nmblookup -M -- - 2>&1 | grep "IP address of my samba server" >/dev/null 2>&1
> if [ $? != 0 ]; then
> nmblookup -M -- -|mail -s "Force master browser election" "my email"
> /usr/bin/smbcontrol nmbd force-election
> fi
>
> The smbcontrol command has the same effect as restarting samba
> (election is won).
>
> Then I tell the person using the PC I see in the email to turn off the
> "browser" service in his/her XP to avoid the same issue in the future.
>
>
>
>
> --
> giulioo@pobox.com
>
> --
> To unsubscribe from this list go to the following URL and read the
> instructions: https://lists.samba.org/mailman/listinfo/samba
>


--
Glück Auf
Timo
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