[Samba] How to regenerate passdb.tdb

[Abe Lau]

On Fri, Jul 9, 2010 at 8:26 AM, Gaiseric Vandal
<gaiseric.vandal at gmail.com>wrote:

> On 07/08/2010 05:43 PM, Jeremy Allison wrote:
>
>> On Thu, Jul 08, 2010 at 11:32:32AM +1000, Abe Lau wrote:
>>
>>
>>> Hi,
>>> I was having problem with the tdbsam backend in which a particular user
>>> got
>>> listed twice with pdbedit.
>>> (http://www.mail-archive.com/samba@lists.samba.org/msg109110.html)
>>>
>>> Without much hope in fixing it, I am planning to re-generating passdb.tdb
>>> on
>>> my PDC by:
>>>   (1)exporting tdbsam to smbpasswd backend
>>>   (2)delete passdb.tdb
>>>   (3)re-import smbpasswd to tdbsam backend
>>>
>>>
>> If you do this you lose a lot of the extra
>> data that tdbsam stores that smbpasswd does
>> not.
>>
>> Jeremy.
>>
>>
> Does "tdbdump passdb.tbd" show the user listed twice?
>
> Maybe you can use tdbtool to edit a copy of the file.  The man page for
> tdbbackup indicates it can check for corruption (but not fix it.)
>
>
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Yes, it seems to have appeared twice

`tdbdump passdb.tdb` gives
{
key(13) = "RID_000003e9\00"
data(5) = "usera\00"
}
....................
{
key(10) = "USER_usera\00"
data(180) =
"\00\00\00\00\FF\FF\FF\7F\FF\FF\FF\7F\00\00\00\00\B2c6L\00\00\00\00\FF\FF\FF\7F\05\00\00\00nick\00\04\00\00\00ORL\00\01\00\00\00\00\01\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\01\00\00\00\00\01\00\00\00\00\00\00\00\00\01\00\00\00\00T\04\00\00\01\02\00\00\00\00\00\00\10\00\00\00<\03\0C\8C\98\89\87\DC+\CE\0Ax)JP\01\00\00\00\00\10\00\00\00\A8\00\15\00\00\00
\00\00\00\FF\FF\FF\FF\FF\FF\FF\FF\FF\FF\FF\FF\FF\FF\FF\FF\FF\FF\FF\FF\FF\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\EC\04\00\00"
}
..................
{
key(13) = "RID_00000454\00"
data(5) = "usera\00"
}

I have tried using tdbbackup -v, but it didn't indicate any corruption.  I
may try tdbtool on a copy of passdb.db and see how it goes.   Thanks for the
suggestion.