samba4: machine and user accounts

Mike Wilkinson mwilkinson at
Wed May 28 01:14:33 GMT 2008

Stefan (metze) Metzmacher wrote:
> It's in the prefixMap attribute,
> see setup/provision_schema_basedn_modify.ldif.
> I think we need to autogenerate the base64 encoded
> based on some plain text source, maybe a simple file
> like this:
> 0x00000000:
> 0x00010000:
> 0x00020000:
> ....
> What we also need is to implement the schema master role
> completely, so that the schema can we updated at runtime
> and a new mapping is created, but first we need to write
> some tests to see how windows handles that.
> Note the prefixMapping attribute is not exposed via LDAP
> from windows hosts, the content is only accessable via the
> DsGetNCChanges() (but not as raw blob how it is stored on the database).
I've spent hours with gdb trying to work out what the encoding is 
supposed to be, the only thing I can see for sure are the header and the 
last few bytes of the final oid. It seems likely that we can't replace 
AD with samba4 at this point, thanks for any input up to now.

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