[Samba] Changed PDC IP, all hell broke lose

Tue Sep 4 10:00:00 MDT 2012

I have no idea what the WINS server is except that I am sure it running on 
Windows since they are totally Windows-based organization.  So the WINS server 
is definitely the problem?  When I talk to them and mention I am using Samba 
on Linux they may totally just say "we don't support it" and hang up.

It seems a strange design that a WINS server can take precedence over
my explicit "password server" setting in my smb.conf file.

-- Paul Raines (http://help.nmr.mgh.harvard.edu)

On Tue, 4 Sep 2012 11:21am, Robert Adkins II wrote:

> More information is required.
>
> What is the WINS server running OS wise? Can you work with the IT Staff in
> charge of that WINS Server?
>
> --
>
> Regards,
> Robert Adkins
>
>
>
>> -----Original Message-----
>> From: Paul Raines [mailto:raines at nmr.mgh.harvard.edu]
>> Sent: Tuesday, September 04, 2012 11:16 AM
>> To: Robert Adkins II
>> Cc: samba at lists.samba.org
>> Subject: RE: [Samba] Changed PDC IP, all hell broke lose
>>
>>
>> I am not running winbindd on the server.  I am using the WINS
>> server of my hospital which I have no control over.
>>
>> I have already tried deleting browse.dat (I do not see the
>> other two files anywhere) to no avail.
>>
>> So my fear is that this is all happening because the WINS
>> server is refusing to recognize the change since I cannot do
>> anything about it. Is that the issue?  Is there anyway to
>> force a WINS server to change the IP it has a for domain
>> master browser?
>>
>> -- Paul Raines (http://help.nmr.mgh.harvard.edu)
>>
>>
>>
>> On Tue, 4 Sep 2012 10:59am, Robert Adkins II wrote:
>>
>>> It's most likely that your server has the old IP Address
>> Cached in the
>>> wins.dat, browse.dat, browse.tdb.
>>>
>>> I recommend the following:
>>>
>>> Shutdown the windbind, nmbd and smbd services.
>>>
>>> Back up each of the above mentioned files.
>>>
>>> Delete the original above named files.
>>>
>>> Restart your services and then see if you can connect.
>>>
>>> You may also need to edit your samba configuration file to point to
>>> the new server IP Address as the PDC Master Browser. (Assuming you
>>> didn't already do
>>> that.)
>>>
>>> The problem is that your server is telling clients to
>> attempt to find
>>> it on a network that no longer exists.
>>>
>>> --
>>>
>>> Regards,
>>> Robert Adkins II
>>>
>>>
>>>
>>>> -----Original Message-----
>>>> From: samba-bounces at lists.samba.org
>>>> [mailto:samba-bounces at lists.samba.org] On Behalf Of Paul Raines
>>>> Sent: Tuesday, September 04, 2012 10:41 AM
>>>> To: samba at lists.samba.org
>>>> Subject: [Samba] Changed PDC IP, all hell broke lose
>>>>
>>>>
>>>> I had to move my RedHat 5 box acting as a PDC to a new IP
>> address. It
>>>> is running samba 3.5.10.  After the move, none of my
>> windows or linux
>>>> samba clients worked anymore.  I tried rejoining some to
>> the domain,
>>>> but would get error
>>>>
>>>> Unable to find a suitable server
>>>> Join to domain 'MRIRESEARCH' is not valid
>>>>
>>>>
>>>> The old PDC IP address is 132.183.202.95 and nothing is at that IP
>>>> anymore (for 4 days now).  The new IP is 172.21.21.35
>>>>
>>>> I ran 'net -d 10 join' and would see it was still trying
>> to connect
>>>> to the old IP address.  I tried 'net cache flush' to no avail.  I
>>>> shut down samba, removed every file in /var/cache/samba
>> and still no
>>>> change.
>>>> It tries to go to the old IP address.
>>>>
>>>> On the PDC box, I increase 'os level' from 60 to 70,
>> stopped the nmbd
>>>> and smbd processes, did a 'net flush cache' and restarted nmbd and
>>>> smbd. Still it fails and the nmbd log as the following.
>>>>
>>>> ==========
>>>> [2012/09/04 10:09:25,  0] nmbd/nmbd.c:857(main)
>>>>    nmbd version 3.5.10-0.110.el5_8 started.
>>>>    Copyright Andrew Tridgell and the Samba Team 1992-2010
>>>> [2012/09/04 10:09:25.716397,  0]
>>>> nmbd/nmbd_logonnames.c:160(add_logon_names)
>>>>    add_domain_logon_names:
>>>>    Attempting to become logon server for workgroup MRIRESEARCH on
>>>> subnet 172.21.21.35
>>>> [2012/09/04 10:09:25.716599,  0]
>>>> nmbd/nmbd_logonnames.c:160(add_logon_names)
>>>>    add_domain_logon_names:
>>>>    Attempting to become logon server for workgroup MRIRESEARCH on
>>>> subnet 192.168.0.150
>>>> [2012/09/04 10:09:25.716671,  0]
>>>> nmbd/nmbd_logonnames.c:160(add_logon_names)
>>>>    add_domain_logon_names:
>>>>    Attempting to become logon server for workgroup MRIRESEARCH on
>>>> subnet UNICAST_SUBNET
>>>> [2012/09/04 10:09:25.716768,  0]
>>>> nmbd/nmbd_become_dmb.c:337(become_domain_master_browser_wins)
>>>>    become_domain_master_browser_wins:
>>>>    Attempting to become domain master browser on workgroup
>>>> MRIRESEARCH, subnet UNICAST_SUBNET.
>>>> [2012/09/04 10:09:25.716828,  0]
>>>> nmbd/nmbd_become_dmb.c:351(become_domain_master_browser_wins)
>>>>    become_domain_master_browser_wins: querying WINS server from IP
>>>> 0.0.0.0 for domain master browser name MRIRESEARCH<1b> on
>> workgroup
>>>> MRIRESEARCH
>>>> [2012/09/04 10:09:25.722744,  0]
>>>> nmbd/nmbd_logonnames.c:121(become_logon_server_success)
>>>>    become_logon_server_success: Samba is now a logon server for
>>>> workgroup MRIRESEARCH on subnet UNICAST_SUBNET
>>>> [2012/09/04 10:09:25.722928,  0]
>>>> nmbd/nmbd_become_dmb.c:235(become_domain_master_query_success)
>>>>    become_domain_master_query_success:
>>>>    There is already a domain master browser at IP
>>>> 132.183.202.95 for workgroup MRIRESEARCH registered on subnet
>>>> UNICAST_SUBNET.
>>>> [2012/09/04 10:09:29.096239,  0]
>>>> nmbd/nmbd_logonnames.c:121(become_logon_server_success)
>>>>    become_logon_server_success: Samba is now a logon server for
>>>> workgroup MRIRESEARCH on subnet 172.21.21.35
>>>> [2012/09/04 10:09:29.096382,  0]
>>>> nmbd/nmbd_logonnames.c:121(become_logon_server_success)
>>>>    become_logon_server_success: Samba is now a logon server for
>>>> workgroup MRIRESEARCH on subnet 192.168.0.150
>>>> [2012/09/04 10:09:49.731244,  0]
>>>> nmbd/nmbd_become_lmb.c:395(become_local_master_stage2)
>>>>    *****
>>>>
>>>>    Samba name server PDC-NMR is now a local master browser for
>>>> workgroup MRIRESEARCH on subnet 172.21.21.35
>>>>
>>>>    *****
>>>> [2012/09/04 10:09:49.731468,  0]
>>>> nmbd/nmbd_become_lmb.c:395(become_local_master_stage2)
>>>>    *****
>>>>
>>>>    Samba name server PDC-NMR is now a local master browser for
>>>> workgroup MRIRESEARCH on subnet 192.168.0.150
>>>>
>>>>    *****
>>>> [2012/09/04 10:10:10.732440,  0]
>>>> nmbd/nmbd_browsesync.c:247(domain_master_node_status_fail)
>>>>    domain_master_node_status_fail:
>>>>    Doing a node status request to the domain master browser
>>>>    for workgroup MRIRESEARCH at IP 132.183.202.95 failed.
>>>>    Cannot sync browser lists.
>>>> [2012/09/04 10:10:10.732636,  0]
>>>> nmbd/nmbd_browsesync.c:247(domain_master_node_status_fail)
>>>>    domain_master_node_status_fail:
>>>>    Doing a node status request to the domain master browser
>>>>    for workgroup MRIRESEARCH at IP 132.183.202.95 failed.
>>>>    Cannot sync browser lists.
>>>>
>>>> =============================================
>>>>
>>>> Where is it still getting the old IP address?
>>>>
>>>> The the clients are all set with
>>>>
>>>>     remote announce = 172.27.88.81
>>>>     wins server = 172.27.88.81
>>>>     security = domain
>>>>     password server = pdc.nmr.mgh.harvard.edu
>>>>     workgroup = MRIRESEARCH
>>>>
>>>> The WINS server is run by central IT group of the hospital
>> and I have
>>>> no control over it.
>>>>
>>>> DNS is properly changed:
>>>>
>>>> # host pdc.nmr.mgh.harvard.edu
>>>> pdc.nmr.mgh.harvard.edu is an alias for
>> raidsrv01.nmr.mgh.harvard.edu.
>>>> raidsrv01.nmr.mgh.harvard.edu has address 172.21.21.35
>>>>
>>>> ---------------------------------------------------------------
>>>> Paul Raines                     http://help.nmr.mgh.harvard.edu
>>>> MGH/MIT/HMS Athinoula A. Martinos Center for Biomedical Imaging
>>>> 149 (2301) 13th Street     Charlestown, MA 02129	    USA
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> The information in this e-mail is intended only for the person to
>>>> whom it is addressed. If you believe this e-mail was sent
>> to you in
>>>> error and the e-mail contains patient information, please
>> contact the
>>>> Partners Compliance HelpLine at
>>>> http://www.partners.org/complianceline . If the e-mail was sent to
>>>> you in error but does not contain patient information,
>> please contact
>>>> the sender and properly dispose of the e-mail.
>>>>
>>>> --
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>>>>
>>>
>>>
>>>
>>
>
>
>