[Samba] windows 7 machine account fails to authenticate against samba PDC

Gaiseric Vandal gaiseric.vandal at gmail.com
Wed Feb 3 10:27:59 MST 2010

What samba version?  After you login from Win 7 can you actually open 
and save files?   It does seem like it is trying to reauthenticate as an 
active directory client.

Maybe config samba to only listen on port 139 and not 445 ("smb ports" 
in smb.conf.)    That might force the Win 7 client to treat the samba 
server as a "NT4" server.  I believe port 445 is for Smb-over-tcp while 
139 is for smb-over-netbios-over-tcp.

On 02/03/10 12:09, graham wrote:
> Hello all,
> I've added my windows7 client to the domain (samba running as pdc), 
> having applied the registry changes identified here 
> (http://wiki.samba.org/index.php/Windows7).
> Partial success - domain users can login and see shares etc, BUT:
> 1 - the registry settings in ntlogon/NTConfig.POL are not applied. Am 
> I right in thinking that windows 7 ignores this policy?
> And if so I therefore need to put the appropriate registry settings 
> into a logon script?
> 2 - every time a domain user logs in to the windows7 host smbd reports 
> an error:
> [2010/02/02 19:07:51,  0] 
> rpc_server/srv_netlog_nt.c:603(_netr_ServerAuthenticate3)
>   _netr_ServerAuthenticate3: netlogon_creds_server_check failed. 
> Rejecting auth request from client WIN7HOST machine account WIN7HOST$
> [2010/02/02 19:07:52,  0] auth/auth_sam.c:355(check_sam_security)
>   check_sam_security: make_server_info_sam() failed with 
> This only occurs for the windows7 client (not XP clients).
> What does this mean, is it a problem, and how do I fix it?!
> 3 - periodic errors reported by nmbd:
> Packet send failed to ERRNO=Operation not permitted
> That's the ipaddress of the windows7 client.
> Actually, looking back in the logs I see this has occasionally 
> happened for all but one of the xp clients too.
> Again, what does this error mean, is it a problem, how would I fix it?
> 4 - windows7 client bombards the server on port 389 (ldap)
> No idea why, no other (xp) clients do this. I'm guessing it /might/ be 
> part of question 2 above ,ie. maybe the win7 client is trying to 
> authenticate against ldap??
> rgds all,
> graham.

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