[Samba] Question about samba domains PDC migration and browsing slowly

Adam Williams awilliam at mdah.state.ms.us
Sun Jun 8 19:18:45 GMT 2008

man smb.conf

      preferred master (G)

           This boolean parameter controls if nmbd(8) is a preferred master
           browser for its workgroup.

           If this is set to yes, on startup, nmbd will force an 
election, and
           it will have a slight advantage in winning the election. It is
           recommended that this parameter is used in conjunction with 
           master = yes, so that nmbd can guarantee becoming a domain 

           Use this option with caution, because if there are several hosts
           (whether Samba servers, Windows 95 or NT) that are preferred 
           browsers on the same subnet, they will each periodically and
           continuously attempt to become the local master browser. This 
           result in unnecessary broadcast traffic and reduced browsing

           Default: preferred master = auto

Javier Barroso wrote:
> Hello list,
> Currently, we are migrating from samba 3.0 PDC [without LDAP as auth
> backend] domain named A to a new samba 3.0 PDC [ with LDAP as auth backend
> and a new sid and name ]. The 2 domains are on the same network and we are
> migrating host by host.
> Like both of domain controllers (A and B) wants to be the browser master,
> browsing from windows explorer on the net is slow (I think because a browser
> master elections fight continously).
> Do you know how can I set only one browser master (is it possible? ) or a
> work arround ?
> Thanks in advance

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