Samba backup (BDC functionality)

Gerald W. Carter cartegw at Eng.Auburn.EDU
Wed Nov 4 13:59:58 GMT 1998

Gerald Heinig wrote:
> does Samba support BDC functionality yet? More to the point, is it 
> possible to configure 2 machines to run identical Samba configs (ie.
> identical smb.confs) and simply start the Samba server on the "backup"
> machine if/when the first machine goes down? 

That should work fine.  The only problem might be the WINS 
registration.  The NT clients look for DOMAIN<1b> on the WINS 
server to locate the DC.

Also make sure that you copy

	- smb.conf
	- private/MACHINE.SID
	- private/smbpasswd

to the second machine.

Just to make sure, you are talking about only having one run at 
a time, simply being able to start the second up if the first DC \
crashes, correct?

> PS. It says on the Samba NTDOM FAQ that PDC <=> BDC *INTEGRATION* isn't
> implemented yet. What exactly does this mean? Does it mean that a BDC
> works, but you have to mirror data manually, or start it manually, or
> does it mean that BDC simply isn't implemented yet?

PDC<->BDC integration is really the PDC<->BDC replication process.
The protocol which MS uses to do this is undocumented and needs
more study to implement.

                            Gerald ( Jerry ) Carter	
Engineering Network Services                           Auburn University 
jerry at   

       "...a hundred billion castaways looking for a home."
                                  - Sting "Message in a Bottle" ( 1979 )

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