My server trying to be domain master browser on another network

On our small network we have a snow leopard server (xserve).
It's a private 192 network using smb to let windows play along.
Lately in the logs the server is trying to the smb domain master browser for what seems to be a foreign private 10 network.
The smb.conf file looks pretty normal although I'm the smb guru I should be.
Does this sound bad?

What's the history of this Xserve configuration, of any SAN-based storage, and of this network?
Whether or not you expect to have a 10-network, you obviously have a 10-network around. (Quite possibly two 10-network subnets, based on the two addresses shown.)
Use a managed switch or network monitor or a brute-force ARP and multicast ping to see what's going on with the networks. Assuming all three networks are /24, the following hackery will probe the network for active IP addresses:
ping -c4 192.168.1.255
arp -a
ping -c4 10.211.55.255
arp -a
ping -c4 10.37.129.255
arp -a
The Bonjour Browser tool is another GUI-based tool that can explore your network.
In general, I would not expect an Xserve box to be using a .local top-level domain as its primary DNS host name; that's not usually known for its reliability.
Intel Xserve boxes can have a second network address around for the LOM, but that setting does not usually show up on the OS X displays other than Server Monitor. So that's probably not the case, here. (Well, you may have LOM addresses, but the Xserve LOM is incompatible with link aggregation.)
Do you have a Fibre Channel SAN around? If so, that tends to have a private management network.

Similar Messages

Can't Turn Off Workgroup Master Browser

I'm probably missing something but I've got a 10.6.1 server that is setup with a Magic Triangle and I was trying to setup a share for someone to access and I cannot setup SMB without the Workgroup Master Browser being checked and I really don't want the machine to be a Master Browser of any kind. If I remove the checkmark and click Save, the checkmark returns. If I set it to be a Domain Master Browser (don't really want this either) and remove the Workgroup check and hit Save, back it come again. Any ideas on what I am doing wrong here?

Yes I do understand. As I stated previously, I edited the /etc/smb.conf. That did not work. I also edited /var/db/smb.conf. That works for a short while, but then the setting is turned back on. Here is my /etc/smb.conf:
; Configuration file for the Samba software suite.
; ============================================================================
; For the format of this file and comprehensive descriptions of all the
; configuration option, please refer to the man page for smb.conf(5).
; The following configuration should suit most systems for basic usage and
; initial testing. It gives all clients access to their home directories and
; allows access to all printers specified in /etc/printcap.
; BEGIN required configuration
; Parameters inside the required configuration block should not be altered.
; They may be changed at any time by upgrades or other automated processes.
; Site-specific customizations will only be preserved if they are done
; outside this block. If you choose to make customizations, it is your
; own responsibility to verify that they work correctly with the supported
; configuration tools.
[global]
debug pid = yes
log level = 1
server string = Mac OS X
printcap name = cups
printing = cups
encrypt passwords = yes
use spnego = yes
passdb backend = odsam
idmap domains = default
idmap config default: default = yes
idmap config default: backend = odsam
idmap alloc backend = odsam
idmap negative cache time = 5
map to guest = Bad User
guest account = nobody
unix charset = UTF-8
display charset = UTF-8
dos charset = 437
vfs objects = notifykqueue,darwinacl,darwinstreams
; Don't become a master browser unless absolutely necessary.
os level = 2
domain master = no
; For performance reasons, set the transmit buffer size
; to the maximum and enable sendfile support.
max xmit = 131072
use sendfile = yes
mangled names = no
stat cache = no
; The darwin_streams module gives us named streams support.
stream support = yes
ea support = yes
; Enable locking coherency with AFP.
darwin_streams:brlm = yes
; Core files are invariably disabled system-wide, but attempting to
; dump core will trigger a crash report, so we still want to try.
enable core files = yes
; Filter inaccessible shares from the browse list.
com.apple:filter shares by access = yes
; Check in with PAM to enforce SACL access policy.
obey pam restrictions = yes
; Make sure that we resolve unqualified names as NetBIOS before DNS.
name resolve order = lmhosts wins bcast host
; Pull in system-wide preference settings. These are managed
; by smb-sync-preferences.
include = /var/db/smb.conf
; Pull in system share configuration. These are managed
; by smb-sync-shares.
include = /var/db/samba/smb.shares
[printers]
comment = All Printers
path = /tmp
printable = yes
guest ok = no
create mode = 0700
writeable = no
browseable = no
; Site-specific parameters can be added below this comment.
; END required configuration.
global
local master = no
preferred master = no
os level = 2
As you can see I made the changes you suggested. I then try to set Workgroup Master Browser to off:
bash-3.2# sudo serveradmin settings smb:local master = no
smb:local master = yes
bash-3.2#
Is there some other step that needs to take place to get this to work? What do you mean "make testparm"
Thanks

Master Browser Issue (OS Level = 65)

All -
So we're running a Windows Server 2003 R2 Active Directory, with a single Mac file server bound to AD (so that we can share out some files via AFP to a small set of Mac workstations). For some reason, the Mac server keeps insisting on forcing itself as the Master Browser on the domain.
I know the "fix" of editing SMB.conf is posted all over the 'net. I've tried editing both /etc/smb.conf and /var/db/smb.conf - but nothing seems to work. Anytime I restart the SMB service (serveradmin stop/start smb), the /var/db/smb.conf file is modified or overwritten to include "os level = 65". And sure enough, any election results in the Mac server winning.
Any thoughts on how I can stop this from happening?
Thanks,
--Noel

Ah yes, welcome to "Browser Wars".
If you think it's fun with the mac you should see what Win95 will do to you.
Open SA, go to the SMB service and to the advanced tab (I presume you have the SMB service turned on). There you will see two services listed, and possibly checked: "Workgroup Master Browser" and "Domain Master Browser". If you don't want any browsing services then make sure that the WINS registration is turned off and you should be able to clear the two browser buttons, otherwise, make sure that you have entered your 2k3 server as the Wins server in "Register with" and then turn off the Domain Master.
The problem is that every windows box, regardless of whether it is a server or not, is a browser. This is because all windows boxes must support peer-to-peer and to do so they have to keep a local copy of the surrounding 24 box names. Because of this you can end up with "notwork neighborhood" syndrome where the network neighborhood listing is incomplete because the box you are on has pulled it's listing from something other than a server (where you get your copy from is totally dependent on the latency between the box and the server. It's a first one to answer situation). There is nothing wrong with the Mac being the master browser, as long as network neighborhood accurately reflects your full domain.
Under WinNT server there were additional tools that showed you the master browser election fights, but I don't believe they exist anymore. They were fun to watch, and eye opening. You should see what happens when a Win9x laptop wins.

Server keeps becoming master browser

Our only mac server is bound to our active directory domain as a member, and samba config file is set so that os level = 2, and master browser set to 'no'. However, each time the machine is restarted, it initiates an election with our dc's and wins. Any thoughts on why this would be occurring?
Thanks

I have similar issue. My Mac server is becoming Master Browser again & again. However i have checked SMB.CONF file is correct, os level = 2 & domain master = no.
Here are System logs from DC Server:-
1.
Event Type: Warning
Event Source: BROWSER
Event Category: None
Event ID: 8021
Date: 5/21/2010
Time: 9:47:30 AM
User: N/A
Computer: AONYPWINDC1
Description:
The browser service was unable to retrieve a list of servers from the browser master \\AOPCNYPMAC1 on the network \Device\NetBTTcpip{E5AC0DB5-D0AD-49BD-84E7-9AADC9584BC3}.
Browser master: \\AOPCNYPMAC1(this is my Mac Server)
Network: \Device\NetBTTcpip{E5AC0DB5-D0AD-49BD-84E7-9AADC9584BC3}
This event may be caused by a temporary loss of network connectivity. If this message appears again, verify that the server is still connected to the network. The return code is in the Data text box.
2. Event Type: Information
Event Source: MRxSmb
Event Category: None
Event ID: 8027
Date: 5/21/2010
Time: 9:43:17 AM
User: N/A
Computer: AONYPWINDC1
Description:
The browser running on the Domain Controller has lost an election. The computer that won the election is AOPCNYPMAC1(this is my MAC Server), on the transport \Device\NetBTTcpip{E5AC0DB5-D0AD-49BD-84E7-9AA.
The data contains the election version, election criteria, and remote computer time up, and the same information for the current computer.
Please help if anyone has any clue.

OS X Server 10.6 always wants to be a Master Browser

I have already read this thread:
http://discussions.info.apple.com/message.jspa?messageID=11058853
And none of it helps. In the smb.conf file itself, it's set to OS level 2, and no master browser. Yet I cannot uncheck the master browser, and this server is always forcing itself to be the master browser in an Active Directory domain, even though it's just a member server bound to Active Directory for credential purposes only.
The machine is only file serving; no other purpose whatsoever.
When this occurs, no Windows or Mac on the domain can browse the network anymore; it completely breaks that functionality for every computer.
Please assist, if possible.

I was beating my head against the wall because this wasn't working for me & then I realized it was because the config posted in the thread got changed because of the [ ] character being recognized as some sort of HTML markup or something.
The entry needs to look like below but imagine global in [ ] and put 4 spaces in front of the 3 config params:
global
local master = no
preferred master = no
os level = 2
After I fixed the formatting the server appears to no longer be forcing elections. Be sure to mark this answered if this fixes yours so that others like me don't waste all day before realizing Apple doesn't let you post plain text on their stupid tech forums.

Receive a "Server is Not Available" error when trying to connect win 7 pro PC to Windows Server Essentials 2012 R2 Domain via Connector

I am trying to connect Windows 7 Pro 64 bit SP1 Computers to a Windows Server 2012 Essentials R2 domain and I receive the following error: "The server is not available. Try connecting to this computer again, or for more information, see Troubleshoot
connecting computers to the server." I have tried all of the steps in the Microsoft technet article "http://technet.microsoft.com/library/jj635102.aspx" and still am receiving this error. A little background on this specific case...
All of these computers were already attached to a different Windows Server Essentials 2012 R2 domain. They have all been taken off the existing domain and added to a workgroup. I have uninstalled the Server Essentials 2012 Connector and deleted
all log files. Has anyone else had this issue? Any help would be greatly appreciated! This is an urgent issue... Thanks in advance all!

Would you be willing to run this script on your server?
http://gallery.technet.microsoft.com/Windows-Server-Essentials-556159c3
Also on a client to test connectivity?
Robert Pearman SBS MVP
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Non Domain Computers Becoming Master Browser

Hello,
I am troubleshooting an issue with the master browser service when an external user connects his workgroup laptop to our domain network and wins the election.
The network consists of a domain controller which has the following registry settings
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Browser\Parameters\IsDomainMaster = True
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Browser\Parameters\MaintainServerList = Yes
All the client computers that are connected to the domain have IsDomainMaster = False and MaintainServerList = No.
When an external user connects to the network with a laptop that isn't part of the domain it causes a master browser election and wins. All the servers and client computers list only media devices instead of all the computers and servers on the network.
Is there a way to prevent non domain computers from becoming the master browser without changing registry settings on that computer?
Thanks
Jon

Hello,
The TechNet Wiki Forum is a place for the TechNet Wiki Community to engage, question, organize, debate, help, influence and foster the TechNet Wiki content, platform and Community.
Please note that this forum exists to discuss TechNet Wiki as a technology/application.
As it's off-topic here, I am moving the question to the
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Karl
When you see answers and helpful posts, please click Vote As Helpful, Propose As Answer, and/or Mark As Answer.
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ZfD 701 Trying to connect to Master XML Server

After loading the Inventory service, everything seems to be normal,but
then it tells
....connection refused
Trying to connect to Master XML Server...
I did not find much in the Knowledge base.
Does this mean, the Inventory service is looking for a inventory proxy?
If so, wow can I tell Zfd to stop looking for the proxy?
Jrgen

Jrgen Blessing,
> Trying to connect to Master XML Server...
It sounds as if the webservice is not loading correctly.
http://www.novell.com/support/search...200%2031966570
http://www.novell.com/support/search...200%2031966570
http://www.novell.com/support/search...200%2031966570
Jared Jennings - Data Technique, Inc.
Novell Support Forums Sysop
My Blog and Wiki with Tips, Tricks, and Tutorials
http://jaredjennings.org

Trying to connect to Master XML server

Hello everyone....
I have a single NW 6.5 SP7 Zen 7 Inventory server and I am getting this
error and some odd things happening when I try to look at the status of the
workstation scans. First of all, I am wondering if these problems are
relate.
Either way, I need to get this "Trying to connect to Master XML server..."
error fixed. Someone suggested in an earlier post that a complete uninstall
and reinstall may be the way to go. They talked about online documents that
gave detail instructions on that but I never found anything like that.
So, I'm kind of stuck. Can anyone help me out there....?
Thanks.
Delon E. Weuve
Senior Network Engineer
Office of Auditor of State
State of Iowa
USA

Delon,
It appears that in the past few days you have not received a response to your
posting. That concerns us, and has triggered this automated reply.
Has your problem been resolved? If not, you might try one of the following options:
- Visit http://support.novell.com and search the knowledgebase and/or check all
the other self support options and support programs available.
- You could also try posting your message again. Make sure it is posted in the
correct newsgroup. (http://forums.novell.com)
Be sure to read the forum FAQ about what to expect in the way of responses:
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If this is a reply to a duplicate posting, please ignore and accept our apologies
and rest assured we will issue a stern reprimand to our posting bot.
Good luck!
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Error when trying to add users - The server is not operational [domain]

Installed the admin console and went to start adding users to the system. On the add users screen I select the domain and then get the following error:
The server is not operational [domain]
I looked this up in Service Notes and found this and found SN 1098415.
The root cause indicated there is that the server is part of a WindowsNT domain and as such can't issue the LDAP query.
This server is running in an active directory domain (not sure if it is 2000 or 2003, but it is AD nonetheless.
Any thoughts? There are no firewalls in-between the servers that provide AD and this server.
McP

I solved my problem. For purposes of discussion let's call my Pre-Windows 2000 domain name ACME and my Windows 2000/2003 domain acme.net.
After writing several manual VBScript LDAP queries (to take BPC out of the equation) I determined that the DC didn't want to answer to ACME. It would only answer to acme.net.
So, I went into Server Manager to "Define System User Groups" and updated the system user group "Domain Users" to look at acme.net for the domain name instead of just ACME.
That did the trick - I am now able to see all the users in the domain.
Thanks for all the suggestions.
McP

EA4500: poor performance as Master Browser - how to disable or make it work?

I have EA4500 acting as a router on domainless all-Windows network of two XP machines.
Unfortunately, EA4500 aggressively grabs the role of the Master Browser (I am talking about Computer Browser Service) on the network (regardless in which order you power the devices up) and then doesn't serve as a working Master Browser - both Windows machines stop listing the network computers in the "Network Neighborhood" and incur massive timeouts when attempting to view the listing.
A quick look with 'browstat.exe status' reveals that indeed the router has announced itself as a Master Browser device, but returns errors when you query it.
Quite predictably, without the router, both machinces figure out amongst each other who will be the Master Browser and everything works fine. The problems begin only when you add the router to the network.
Hence the questions:
1) Is there any way to make EA4500 work like a full-blown Master Browser (the one that not only announces itself, but also serves as such)? That would be really nice, as having a Master Browser integrated in "always-on" router would really improve the predictability of the network.
2) If not, is there any way to disable the Master Browser on EA4500? For now I managed to achieve that by assigning the router to different workgroup name, but this is lame, as I now can't connect a disk storage to the router and use it within the same workgroup.

I have the same problem.
I also tried bridge mode, but this case all functions are disabled, so the smart part is useless.... and still samba is running and messing up the whole network.
I checked the firmware, seems SSH included in the kernel, is it possible to ssh into the EA4500 and modificate the samba config file????

Px12-400r wants to become a master browser in NetBt transport

Hello, community!
My second domain controller say that:
Event Type:   Error
Event Source:   MRxSmb
Event Category:   None
Event ID:   8003
Date:       9/25/2013
Time:       7:01:01 AM
User:       N/A
Computer:   DC-02
Description:
The master browser has received a server announcement from the computer PX12-400R that believes that it is the master browser for the domain on transport NetBT_Tcpip_{FE107059-C039-43FE. The master browser is stopping or an election is being forced.
I understand this situation but not understand what i can do for resolve problem in LenovoEmc px12-400r. I don't see same instruments in webinterface of px12-400r

Hi Lucas_Buck,
Did you scheduled any tasks in the Task scheduler at that time?
It is strange that the network caused the Sleep Reason: Button or Lid.
Additionally, there is a large time span between 8/26/2014 5:11:43 and 2/26/2014 3:21:49.
Please refer to the following KB for more details about the event ID.
Common causes and solutions of browser Event ID 8021 and Event ID 8032 on domain master browsers
http://support.microsoft.com/kb/q135404
Additionally, please update your network adapter driver to the latest version.
Best regards,
Fangzhou CHEN

Master Browser - 2008 R2

I am not thinking clearly this morning, I am attempting to find the Master Browser in my 2008 R2 domain. Does browstat.exe still work, last time I used it was back in the 2003 days.

Hello,
the Computer browser service is by default not started. So you have to enable this to use the master browser.
http://blogs.technet.com/b/networking/archive/2008/07/25/netbios-browsing-across-subnets-may-fail-after-upgrading-to-windows-server-2008.aspx
Best regards
Meinolf Weber
MVP, MCP, MCTS
Microsoft MVP - Directory Services
My Blog: http://blogs.msmvps.com/MWeber
Disclaimer: This posting is provided AS IS with no warranties or guarantees and confers no rights.
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PDC is Master Browser but event logs still have alot of 8003 errors

Computer Browser Service is enabled into my domain controller (server 2012) who have PDC Role (all my pcs in same subnet). But I have still the errors 8003 in the event logs that some workstation (members in domain) believes that it is the master browser
for the domain
My Question is Should I disable computer browser service on all workstations in the domain or this are not good idea.

Hi,
You can try the following steps:
Disable and enable the NIC.
Make sure you are not running a multi-homed DC.
Make sure the registry key
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Browser\Parameters\IsDomainMaster is set to false.
The computer browser service is an NT legacy system and was retained for backward compatibility. So if you do not have any apps rely on this service you can disable it.
You can also refer to this troubleshooting guide:
Troubleshooting the Microsoft Computer Browser Service
http://support.microsoft.com/kb/188305/en-us
Hope this helps.

Joining Windows 2012 Server to SBS 2011 Domain

Hi All,
I have been trying to get a new Windows 2012 Server to join a SBS 2011 domain. The error message I am getting is:
The following error occurred attempting to join the domain: xxxx. The specified domain does not exist or could not be contacted.
I have a bunch of other Windows 7/XP workstations that have joined successfully. I have also tried disabling TCP/IP v6 on the 2012 server and joining the domain with the netdom command. The SBS 2011 server is listed as the primary DNS server on the 2012
server.
What else can I try here?
Thanks,
DR.

I am having the same issue has the OP. I have my DNS settings pointing to the sbs server that hosts the domain and DNS. I am receiving the same error.
Server 2012 R2 Standard
SBS 2011 Essentials
Jerry T

My server trying to be domain master browser on another network

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