[Samba] How to Force Domain Clients to use new PDC
wikked1 at hotmail.com
Fri Feb 17 11:15:38 MST 2012
Thanks for the response I appreciate it!
I haven't had any exposure to the NT4 Wins manager tool,I'll hunt around for it
as far as querying the Wins servers I usually use NSLookup and I've look at the output of
tdbdump. I'll be researching the samba4wins available parameters around midweek next week,
(just in case there are any further developments or replies on this) during the weekend.
I've got a 4 day weekend .....and I may not get to those config life parameters for Samba4wins till then.
Date: Fri, 17 Feb 2012 10:14:26 -0500
From: gaiseric.vandal at gmail.com
To: wikked1 at hotmail.com
CC: samba at lists.samba.org
Subject: Re: [Samba] How to Force Domain Clients to use new PDC
You could try stopping the wins service, backing up and deleting the
wins.tdb and wins.dat file, then starting the wins server again.
(this is for the wins service from samba 3- I don't know how
samba4wins handles this.) This should make sure that only the new
PDC registers itself in the WINS db. Before you do so, you may want
to look at the existing wins db. I don't remember if the wins.dat
file is created from the wins.tdb file or the other way around. You
can use the tdbdump command on a TDB file. The wins database
should list whether a machine is a logon server or browser. I
suspect your existing wins database still has entries for the old
DC's. I don't know how lonh the WINS database will keep old
entries- it could be for days or weeks. There is also a tdbedit
command that you could use to try to edit the wins TBD file (if
the only reason you might want to use lmhosts on a machine is to
verify, with a single machine, that the new PDC really can handle
the authentication/login from a client PC.
Can you use the NT4 Wins Manager tool to query your WINS server?
On 02/17/12 08:17, Wikked One wrote:
All systems are joined to the same domain and have the same
I'm using the NT4 Server manager to look at status of all domain
it displays the hierarchy of the domain, (I figure if an XP
workstation (domain member,logged
in as the domain admin) is picking up the change (it does
indicate the change usually within 15 minutes
of the BDC to PDC and vice versa). Workstations still report
the old PDC when issuing an echo %logonserver%
at the command line,which I understand from the old NT4 Server
days,the BDC usually handles logon requests,
but since I'm trying to make the shift to a TLS communication
with the LDAP backend I stop the samba service on
the non-TLS BDC and promote the BDC to PDC using the OS level
and a couple other parameters.
When it comes to the WINS servers,what I'm asking is IF I can
make a change on them to recognize the new PDC faster by
changing a parameter on them so that WINS "leases" (for lack of
the parameter name at the moment) are refreshed and the
new PDC recognize by all members of the domain faster?
The two seem to be connected so if I can get WINS to distribute
the new PDC to the rest of the domain
The Domain wide recognition of the new PDC takes too long ....
the Hosts (LMHOSTS) file is not a good option in this case....
> Date: Thu, 16 Feb 2012 11:59:00 -0500
> From: gaiseric.vandal at gmail.com
> To: samba at lists.samba.org
> Subject: Re: [Samba] How to Force Domain Clients to use
> Are all DC's truly in the same domain? ("net
> should show the same domain sid on all DC's.) Were the
> joined to the existing domain when setting up or did you
> the same domain name.
> What exactly are you using the NT4 server manager tool
> Presumably all samba DC's and clients are pointing to the
> server. Windows machines by default will prefer to
> against a BDC. You can try to change this by increasing
> version" and "os level" parameters in the smb.conf file.
The only way
> to really force it is to NOT use wins and configure the
client to use an
> lmhosts file to find the DC.
> On 02/16/12 09:37, Wikked One wrote:
> > Good Morning Samba Team,
> > We’ve been using Samba 3.4.8 and
> > OpenLdap as an NT domain PDC for a number of years,
running on CentOS 5.7 64 bit. In the
> > meantime I’ve been configuring other systems to use
a multimaster OpenLdap
> > backend and implement TLS. Obviously the
> > first system does not communicate with the other 2
systems (now registered as
> > BDC system on the same domain).
> > I have imported the user,group and computer groups
> > newer systems so that all password and user
information is synchronized.
> > We are also use Samba4Wins as our WINS server…..
> > Now my question: I
> > can “promote” the target system I want to as the PDC
by making a few changes to
> > the smb.conf as well as the config file on the
> > When I use the old NT4 server manager tool the
> > seems to take a few minutes to register, however
many of the domain member
> > client systems (almost exclusively Windows XP Pro)
are failing to recognize the
> > change and still use the old PDC to login.
> > How can I force the client systems to recognize the
> > ?Is this dependent on the WINS servers?
> > Thanks!
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