[Samba] Strange winbindd messages

[Andrew Bartlett]

On Wed, 2013-01-23 at 11:59 -0500, John Center wrote:
> Hi,
> 
> We are running samba v3.6.3 on Ubuntu 12.04 server.  This is being used 
> with FreeRADIUS for wireless authentication with AD.  We just logged a 
> set of messages from winbindd that I don't understand:
> 
> Jan 23 10:35:28 as3 winbindd[25371]: [2013/01/23 10:35:28.056846,  0] 
> rpc_client/cli_netlogon.c:677(rpccli_netlogon_set_trust_password)
> Jan 23 10:35:28 as3 winbindd[25371]:   dcerpc_netr_ServerPasswordSet{2} 
> failed: NT code 0xc00002a5
> Jan 23 10:35:28 as3 winbindd[26636]: [2013/01/23 10:35:28.105143,  0] 
> rpc_client/cli_netlogon.c:671(rpccli_netlogon_set_trust_password)
> Jan 23 10:35:28 as3 winbindd[26636]:   credentials chain check failed
> Jan 23 10:35:28 as3 winbindd[25518]: [2013/01/23 10:35:28.310288,  0] 
> rpc_client/cli_netlogon.c:671(rpccli_netlogon_set_trust_password)
> Jan 23 10:35:28 as3 winbindd[25518]:   credentials chain check failed
> Jan 23 10:36:28 as3 winbindd[25371]: [2013/01/23 10:36:28.121861,  0] 
> rpc_client/cli_netlogon.c:671(rpccli_netlogon_set_trust_password)
> Jan 23 10:36:28 as3 winbindd[25371]:   credentials chain check failed
> 
> Authentications went through ok at 10:35:23 & again at 10:35:29.  We 
> haven't seen them before, & searching, I couldn't find much info.  What 
> do these messages mean?  What would have caused them?  Do we need to be 
> concerned?  Any help would be greatly appreciated.

What is happening here is that we are trying and failing to change our
machine account password.  Can you try Samba 3.6.12 and see if the
changes in the meantime have fixed this?

Andrew Bartlett

-- 
Andrew Bartlett                                http://samba.org/~abartlet/
Authentication Developer, Samba Team           http://samba.org