[Samba] Changed PDC IP, all hell broke lose
Robert Adkins II
radkins at impelind.com
Thu Sep 6 07:37:27 MDT 2012
I think you can/should have them remove the PDC from their WINS entry on
their end and then you can rejoin the network with the new IP Address.
Outside of that, I can only suggest looking into how to send an update to a
record on a WINS server from a Samba PDC. I'm unsure if that is possible as
I have only run a fully Windows or a Linux/Samba with Windows Clients as a
network.
--
Regards,
Robert Adkins
> -----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 2:24 PM
> To: samba at lists.samba.org
> Subject: Re: [Samba] Changed PDC IP, all hell broke lose
>
>
> 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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>
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