[Samba] Continuous Normalisation error for attribute whenCreated when performing dbcheck

[Andrew Bartlett]

On Thu, 2014-10-16 at 11:08 +0200, Andreas Oster wrote:
> Hi all,
> 
> since the migration of our old Win2k domain to Samba4 some years ago
> I get a lot of errors like the following when doing a
> "samba-tool dbcheck --cross-ncs --fix" :
> 
> 
> ERROR: Normalisation error for attribute whenCreated in
> CN=rpc-Ns-Group,CN=Schema,CN=Configuration,DC=samdom,DC=com
> value '19700101000000.0Z' should be '16010101000000.0Z'
> Fix normalisation for whenCreated from
> CN=rpc-Ns-Group,CN=Schema,CN=Configuration,DC=samdom,DC=com? [YES]
> Normalised attribute whenCreated
> 
> 
> This repeats 1000+ times for many different entries.
> 
> The samba-tool unfortunately does not fix the issue because when I start
> it a second time it will complain again, this time with values switched
> around:
> 
> value '16010101000000.0Z' should be '19700101000000.0Z'

Both are expressions of 'zero time', in NT and unix times respectively. 

I suppose fix would be to always normalize via NT times, not unix times,
but it seems quite odd that we have zero values here to start with.  I
guess Win2k did something strange in the original setup, long ago. 

Sorry not to be able to give you an instant fix, but at least I can
assure you that this is 'mostly harmless' in the short-term. 

Andrew Bartlett

-- 
Andrew Bartlett
http://samba.org/~abartlet/
Authentication Developer, Samba Team  http://samba.org
Samba Developer, Catalyst IT          http://catalyst.net.nz/services/samba