[Samba] unknown authentification failure - Samba 4.0.1 pdc
bugblatterbeast
samba at bugblatterbeast.de
Mon Oct 28 09:36:32 MDT 2013
I've just found something in a logfile named "log.%m" (usually the name
of the machine is filled in):
[2013/10/28 14:46:19, 0]
../auth/ntlmssp/ntlmssp_sign.c:236(ntlmssp_check_packet)
NTLMSSP NTLM2 packet check failed due to invalid signature!
[2013/10/28 14:47:38, 0]
../auth/ntlmssp/ntlmssp_sign.c:236(ntlmssp_check_packet)
NTLMSSP NTLM2 packet check failed due to invalid signature!
[2013/10/28 14:47:48, 0]
../source4/rpc_server/drsuapi/writespn.c:237(dcesrv_drsuapi_DsWriteAccountSpn)
Failed to modify SPNs on
CN=COMPUTERNAME,CN=Computers,DC=DOMAINNAME,DC=local: error in module
acl: Constraint violation (19)
This seems to be important... but I still don't understand what it means
and how I can fix it.
Am 28.10.2013 15:26, schrieb bugblatterbeast:
> Hi,
>
>
> one of our clients can't connect to the pdc anymore. All attempts
> lead to an error-message about the wrong username or password. We've
> tried several user-accounts and it's always the same...
>
> any username like "domainname\domainuser" with password always fails
> without delay. Either when trying to log on to the workstation, or
> when connecting to a samba share on the domain-controller (like
> "\\domaincontroller\share").
>
> Now, when we log in as a local user and try to connect to a samba
> share on the domain-controller using the WRONG username
> "computername\domainuser" with the NOT MATCHING password of the
> domainuser it works!!!!! We can not only connect to a samba share but
> also join or leave the domain. However it's still impossible to logon
> to the workstation that way...
>
> We've also changed the ip-address and the netbios-name of the computer
> and deleted the computer's domain-account... several times without any
> success.
>
> The most disappointing thing is, that I can't find any log-entries on
> the domain controller. I've already activated machine-logs, but
> there's nothing helpful to be found in /var/log/samba.
>
>
> Thanks in advance, bbb
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