samba - Jan 2008 - Weird reproduceable delta after power failure - PDC

Hello List,

i am using Ubuntu Server 6.06 with the smbldap installer script from
majen.net/smbldap/
I am using VMWare to run my test systems (Ubuntu server and Windows
Domain Clients)

After producing a power supply failure (stopping my Ubuntu and windows
client by the stop button in vmware) and starting them up again i can
see a delta in my ldap database:



Before Power failure:
----------------------
uidNumber: 10000
sambaSID: S-1-5-21-2308582080-1758763575-3976210704-21000 	
sambaPwdCanChange: 1201212116
sambaNTPassword: C880093E1682DA079892FF7FF2AEA911
sambaPwdLastSet: 1201212116

After Power failure:
----------------------
uidNumber: 10005
sambaSID: S-1-5-21-2308582080-1758763575-3976210704-21010
sambaPwdCanChange: 1201260229
sambaNTPassword: 2446CE7E7D8B196756E40E80B5EC3A13
sambaPwdLastSet: 1201260229



I did not manually change those properties and i wonder who or why they
changed.

The result is that my windows client can not log into the domain
anymore. I have to remove it fro the domain and add it again.

Has anyone an idea why this is _automatically_ happening?
Do you need more infos?

Thanks, Mario

On Jan 25, 2008 11:16 AM, ml@bortal.de <ml@bortal.de> wrote:
> Hello List,
>
> i am using Ubuntu Server 6.06 with the smbldap installer script from
> majen.net/smbldap/
> I am using VMWare to run my test systems (Ubuntu server and Windows
> Domain Clients)
>
> After producing a power supply failure (stopping my Ubuntu and windows
> client by the stop button in vmware) and starting them up again i can
> see a delta in my ldap database:
>
>
>
> Before Power failure:
> ----------------------
> uidNumber: 10000
> sambaSID: S-1-5-21-2308582080-1758763575-3976210704-21000
> sambaPwdCanChange: 1201212116
> sambaNTPassword: C880093E1682DA079892FF7FF2AEA911
> sambaPwdLastSet: 1201212116
>
> After Power failure:
> ----------------------
> uidNumber: 10005
> sambaSID: S-1-5-21-2308582080-1758763575-3976210704-21010
> sambaPwdCanChange: 1201260229
> sambaNTPassword: 2446CE7E7D8B196756E40E80B5EC3A13
> sambaPwdLastSet: 1201260229
>
>
>
> I did not manually change those properties and i wonder who or why they
> changed.
>
> The result is that my windows client can not log into the domain
> anymore. I have to remove it fro the domain and add it again.
>
> Has anyone an idea why this is _automatically_ happening?
> Do you need more infos?
>
> Thanks, Mario
>
> --
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What file system (journaled?), were you using RAID, and was the VMWare disk
zeroed out before you used it?  It could be silent data corruption (although
I doubt it), a bug in VMWare, or any number of other nasty things that
happen when power is pulled with an unflushed buffer.  The extra layer of
complexity that a hypervisor adds to the mix is potentially substantial,
IMHO.  If the file system is journaled, can you get your boot log and see if
any of the transactions were replayed on fsck during boot?

Sorry for the dupe, I forgot to CC the mailing list!

-- 
Peace and Blessings,
-Scott.

"Of course, that's just my opinion; I could be wrong"
-Dennis Miller