smb.conf files for the PDC problem case

Jeremy Allison jallison at
Wed Jul 15 17:24:39 GMT 1998

Richard Sharpe wrote:
> Hi folks,
> here is the smb.conf file for the system that is causing Windows NT servers
> to be confused about who should be the PDC.
> As you can see, domain master = no.  This is a Samba 1.9.18p4 system.
> Any suggestions about what the problem is?

It's probably this line.

> >   domain logons = yes

WinNT merges the functions domain master browser
and domain logon functions in a PDC, Samba allows
them to be set separately.

However, setting domain logons=yes will cause
nmbd to register the DOMAIN<1c> name with
WINS and on the local net.

>From the CIFS browsing spec :

     This name is registered by Primary Domain Controllers.

     This name is used to identify the Domain Master Browser for domain^M
     "DOMAIN" (which is also the primary domain controller). It is a^M
     unique name added only by the primary domain controller. The^M
     primary domain controller will respond to GetBackupListRequest on^M
     this name just as it responds to these requests on the <DOMAIN>(1d)^M

Now having domain master=no, domain logons=yes
will register the DOMAIN<1c> name but not the
DOMAIN<1b> name. This probably is confusing
broken MS clients that are looking for a netlogon
service (provided by the 1c name) and then assuming
that this machine is also the domain master
browser (as it always will be in an NT system).



Buying an operating system without source is like buying
a self-assembly Space Shuttle with no instructions.

More information about the samba-technical mailing list