[Samba] Changed PDC IP, all hell broke lose
Robert Adkins II
radkins at impelind.com
Tue Sep 4 08:59:03 MDT 2012
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
>
>
>
>
>
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