[Samba] passdb.tdb shows no users in new 4.3.11-ubuntu install?

[David H. Durgee]

Rowland Penny via samba wrote:
> On Tue, 12 Jun 2018 09:31:57 -0400
> "David H. Durgee via samba" <samba at lists.samba.org> wrote:
>
>> I enabled logging at level 3 on my new 4.3.11-ubuntu (sylvia) system
>> to see why I was not opening a share properly from another system.
>> The log shows:
>>
>>      [2018/06/11 20:49:13.418108,  3]
>>      ../source3/auth/auth.c:178(auth_check_ntlm_password)
>>         check_ntlm_password:  Checking password for unmapped user
>>      [AGI-NET]\[dhdurgee]@[Z560] with the new password interface
>>      [2018/06/11 20:49:13.418124,  3]
>>      ../source3/auth/auth.c:181(auth_check_ntlm_password)
>>         check_ntlm_password:  mapped user is:
>> [DG41TY]\[dhdurgee]@[Z560] [2018/06/11 20:49:13.418178,  3]
>>      ../source3/auth/check_samsec.c:400(check_sam_security)
>>         check_sam_security: Couldn't find user 'dhdurgee' in passdb.
>>      [2018/06/11 20:49:13.418201,  2]
>>      ../source3/auth/auth.c:315(auth_check_ntlm_password)
>>         check_ntlm_password:  Authentication for user [dhdurgee] ->
>>      [dhdurgee] FAILED with error NT_STATUS_NO_SUCH_USER
>>      [2018/06/11 20:49:13.428484,  3]
>>      ../source3/auth/auth_util.c:1602(do_map_to_guest_server_info)
>>         No such user dhdurgee [AGI-NET] - using guest account
>>
>>
>> So it appears that "dhdurgee" is not in passdb for some reason.
>> Checking this on that system shows:
>>
>>      dhdurgee at DG41TY ~ $ sudo pdbedit --list --verbose
>>      [sudo] password for dhdurgee:
>>      WARNING: The "syslog" option is deprecated
>>      dhdurgee at DG41TY ~ $
>>
>>
>> So there are no users in passdb?  Doing the same on 3.6.25 (maya)
>> shows unix users nobody and dhdurgee as expected.
>>
>> Is the passdb compatible between the two?  Can I simply copy the
>> 3.6.25 version over the 4.3.11 one?  Shouldn't the passdb have been
>> initialized properly when samba was installed?  Is there an
>> initialization utility to run to do so? The 3.6.25 version of
>> passdb.tdb is 36864 bytes while the 4.3.11 version is 421888 bytes
>> respectively.
>>
>> Dave
> Welcome to the wonderful world of running Samba as a standalone
> server ;-)
>
> You need to create your users and groups on the new server, both as
> Unix & Samba users and groups, you will also have to add users to the
> required groups. You will also have ensure that the connecting user has
> the same password as the Samba user. This can quickly become a pain,
> such as when a connecting user changes their password, you need to come
> up with a way to also change the users Samba password as well.
>
> You may be able to copy the Samba tdb files from one server to the
> other, I am unsure because I have never tried it, I abandoned standalone
> servers so time ago.
>
> Rowland

Ah, I was wondering about that.  Do the tdb files need to be copied as a 
set?  Given my 3.6.25 standalone is working as it should this certainly 
seems the first thing to try.

Dave