[Samba] Changed PDC IP, all hell broke lose
jax at nwmt.us
jax at nwmt.us
Tue Sep 4 12:34:15 MDT 2012
Okay, someone else will need to answer on how WINS works, but something
else might be going on here. On a windows machine, if you do a ping -a,
you'll get ping to resolve your name. I'd check both old and new IPs.
Granted, the old won't reply, but you'll see the DNS query go through
anyway. What that means then is that the IT staff on the other side has
manually loaded a DNS entry into Active Directory, and WINS is pulling
from that because that's the information is has to work from.
Perform some DNS querys against the A/D dns servers, see if they have
the old IP or new one or just plain none at all for your server...
On 2012-09-04 12:23, Paul Raines wrote:
> It is definitely an issue with the WINS server which returns the old
> IP address
>
> # nmblookup -U 172.27.88.81 -R 'MRIRESEARCH#1b'
> querying MRIRESEARCH on 172.27.88.81
> 132.183.202.95 MRIRESEARCH<1b>
>
> SO it is not automatically picking up the IP change which happened 4
> days ago
> and I have restarted samba on my PDC several times. The old IP is
> definitely
> not in /etc/hosts anymore or anywhere in smb.conf. It only shows up
> in
> gencache.tdb in the files /var/lib/samba even though I keep deleting
> that
> file when I restart.
>
> WINS is a total mystery to me. How is this supposed to work?
>
> -- Paul Raines (http://help.nmr.mgh.harvard.edu)
>
>
>
> On Tue, 4 Sep 2012 12:00pm, Paul Raines wrote:
>
>> 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.
>>>>>> --
>>>>>> To unsubscribe from this list go to the following URL and read
>>>>>> the
>>>>>> instructions: https://lists.samba.org/mailman/options/samba
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>
>>>
>>>
>>
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