[Samba] Samba as PDC and BDC on the same network.

Mccrory, Kevin B kevin.mccrory at eds.com
Wed Mar 2 14:20:35 GMT 2005

This is the way it should be working. The BDC handles authentication
requests for the domain unless it becomes overloaded at which time the PDC
steps in to take over. 
Refer to Chapter 4 section 4.2 of the Official Samba-3 HOWTO and Reference
Guide that explains Domain Control.

Kevin B. McCrory
Network Engineer - COPS
US Government Solutions
13600 EDS Drive
Mail stop:  A4S-B21
Herndon, VA 20171
* phone: +01-703-733-3255
* mailto:kevin.mccrory at eds.com
* AKO mailto:kevin.mccrory at us.army.mil

-----Original Message-----
From: samba-bounces+kevin.mccrory=eds.com at lists.samba.org
[mailto:samba-bounces+kevin.mccrory=eds.com at lists.samba.org] On Behalf Of
Sent: Wednesday, March 02, 2005 8:14 AM
To: samba at lists.samba.org
Subject: [Samba] Samba as PDC and BDC on the same network.

I have recently configured two servers to be controlers of my domain. The
first one is the PDC and is configured like :
   domain master = yes
   prefered master = yes
   local master = yes
   domain logons = yes
   security = user
   os level = 99

And the second, the BDC like :
   domain master = no
   prefered master = no
   local master = no
   domain logons = yes
   security = user
   password server = PDC BDC
   os level = 40

When the two servers are started, i see in the logs :
DOMAIN(1) current master browser = PDC
                BDC 40009a03 (BDC)
                PDC 400c9b0b (PDC)

but my clients (windows 2000 and XP) are authenticated by the BDC.

I don't unterstand why it's working like this !! The PDC becomes the 
master if I set the domain logons option to no.


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