[Samba] nsswitch/libnss_winbind.so.2

Rowland Penny rowlandpenny at googlemail.com
Mon Jun 22 05:23:35 MDT 2015


On 22/06/15 11:59, Marc Rechté wrote:
> Sorry I forgot the /etc/samba/smb.conf:
>
> [global]
>
>     workgroup = STUDELEC-SA
>     server string = Samba Server Version %v
>
> ;    netbios name = MYSERVER
>
> ;    interfaces = lo eth0 192.168.12.2/24 192.168.13.2/24
> ;    hosts allow = 127. 192.168.12. 192.168.13.
>
> ;    max protocol = SMB2
>
>     # log files split per-machine:
>     log file = /var/log/samba/smb.log
>     # maximum size of 50KB per log file, then rotate:
>     max log size = 50
>
>     log level = winbind:9
> # ----------------------- Domain Members Options ------------------------
>
>    security = ADS
>    realm = STUDELEC-SA.COM
>    server role = member server
>    dedicated keytab file = /etc/krb5.keytab
>    kerberos method = secrets and keytab
>
>    idmap config *:backend = tdb
>    idmap config *:range = 2000-9999
>    idmap config STUDELEC-SA:backend = ad
>    idmap config STUDELEC-SA:schema_mode = rfc2307
>    idmap config STUDELEC-SA:range = 10000-99999
>
>    winbind nss info = rfc2307
>    winbind trusted domains only = no
>    winbind use default domain = yes
>    winbind enum users  = yes
>    winbind enum groups = yes
>    winbind refresh tickets = Yes
>    winbind expand groups = 4
>    winbind normalize names = Yes
>    domain master = no
>    local master = no
>    vfs objects = acl_xattr
>    map acl inherit = Yes
>    store dos attributes = Yes
>
>
>
> OK, issuing this command:
>
> $ getent passwd tunix
>
> Produces in /var/log/log.wb-STUDELEC-SA:
>
> 2015/06/22 12:32:37.473115,  4] 
> ../source3/winbindd/winbindd_dual.c:1346(child_handler)
>   Finished processing child request 20
> [2015/06/22 12:32:37.473241,  4] 
> ../source3/winbindd/winbindd_dual.c:1338(child_handler)
>   child daemon request 20
> [2015/06/22 12:32:37.473278,  3] 
> ../source3/winbindd/winbindd_misc.c:161(winbindd_dual_list_trusted_domains)
>   [27699]: list trusted domains
> [2015/06/22 12:32:37.473301,  3] 
> ../source3/winbindd/winbindd_ads.c:1427(trusted_domains)
>   ads: trusted_domains
> [2015/06/22 12:32:37.474261,  4] 
> ../source3/winbindd/winbindd_dual.c:1346(child_handler)
>   Finished processing child request 20
> [2015/06/22 12:34:23.262925,  4] 
> ../source3/winbindd/winbindd_dual.c:1338(child_handler)
>   child daemon request 59
> [2015/06/22 12:34:23.263078,  3] 
> ../source3/winbindd/winbindd_msrpc.c:252(msrpc_name_to_sid)
>   msrpc_name_to_sid: name=STUDELEC-SA\TUNIX
> [2015/06/22 12:34:23.263178,  3] 
> ../source3/winbindd/winbindd_msrpc.c:266(msrpc_name_to_sid)
>   name_to_sid [rpc] STUDELEC-SA\TUNIX for domain STUDELEC-SA
> [2015/06/22 12:34:23.267421,  4] 
> ../source3/winbindd/winbindd_dual.c:1346(child_handler)
>   Finished processing child request 59
> [2015/06/22 12:34:23.267684,  4] 
> ../source3/winbindd/winbindd_dual.c:1338(child_handler)
>   child daemon request 59
> [2015/06/22 12:34:23.267767,  3] 
> ../source3/winbindd/winbindd_ads.c:605(query_user)
>   ads: query_user
> [2015/06/22 12:34:23.329798,  3] 
> ../source3/winbindd/winbindd_ads.c:730(query_user)
>   ads query_user gave tunix
> [2015/06/22 12:34:23.329862,  4] 
> ../source3/winbindd/winbindd_dual.c:1346(child_handler)
>   Finished processing child request 59
> [2015/06/22 12:34:23.330027,  4] 
> ../source3/winbindd/winbindd_dual.c:1338(child_handler)
>   child daemon request 59
> [2015/06/22 12:34:23.330068,  3] 
> ../source3/winbindd/winbindd_msrpc.c:300(msrpc_sid_to_name)
>   msrpc_sid_to_name: S-1-5-21-497920593-2320919703-1315762108-513 for 
> domain STUDELEC-SA
> [2015/06/22 12:34:23.331468,  5] 
> ../source3/winbindd/winbindd_msrpc.c:320(msrpc_sid_to_name)
>   Mapped sid to [STUDELEC-SA]\[Utilisateurs du domaine]
> [2015/06/22 12:34:23.331501,  5] 
> ../source3/winbindd/winbindd_cache.c:1184(resolve_username_to_alias)
>   resolve_username_to_alias: backend query returned 
> NT_STATUS_INVALID_PARAMETER
> [2015/06/22 12:34:23.331528,  5] 
> ../source3/winbindd/winbindd_msrpc.c:328(msrpc_sid_to_name)
>   returning mapped name -- Utilisateurs_du_domaine
> [2015/06/22 12:34:23.331563,  4] 
> ../source3/winbindd/winbindd_dual.c:1346(child_handler)
>   Finished processing child request 59
> [2015/06/22 12:34:23.331698,  4] 
> ../source3/winbindd/winbindd_dual.c:1338(child_handler)
>   child daemon request 59
> [2015/06/22 12:34:23.332704,  4] 
> ../source3/winbindd/winbindd_dual.c:1346(child_handler)
>   Finished processing child request 59
> [2015/06/22 12:37:37.501433,  4] 
> ../source3/winbindd/winbindd_dual.c:1338(child_handler)
>   child daemon request 20
> [2015/06/22 12:37:37.501560,  3] 
> ../source3/winbindd/winbindd_misc.c:161(winbindd_dual_list_trusted_domains)
>   [27699]: list trusted domains
> [2015/06/22 12:37:37.501598,  3] 
> ../source3/winbindd/winbindd_ads.c:1427(trusted_domains)
>   ads: trusted_domains
> [2015/06/22 12:37:37.503225,  4] 
> ../source3/winbindd/winbindd_dual.c:1346(child_handler)
>   Finished processing child request 20
> [2015/06/22 12:42:37.505184,  4] 
> ../source3/winbindd/winbindd_dual.c:1338(child_handler)
>   child daemon request 20
> [2015/06/22 12:42:37.505292,  3] 
> ../source3/winbindd/winbindd_misc.c:161(winbindd_dual_list_trusted_domains)
>   [27699]: list trusted domains
> [2015/06/22 12:42:37.505325,  3] 
> ../source3/winbindd/winbindd_ads.c:1427(trusted_domains)
>   ads: trusted_domains
> [2015/06/22 12:42:37.506940,  4] 
> ../source3/winbindd/winbindd_dual.c:1346(child_handler)
>   Finished processing child request 20
>
>
>
> Le 22/06/2015 09:56, Rowland Penny a écrit :
>> On 22/06/15 07:38, Marc Rechté wrote:
>>> Hello,
>>>
>>> Trying to set up an AD member server, I am stuck on nsswitch not
>>> working.
>>>
>>> wbinfo -u returns the list of domain users, but getent passwd <some
>>> user> always fails (exit 2)
>>>
>>> /etc/nsswitch.conf
>>> passwd:     files winbind
>>> shadow:     files winbind
>>> group:      files winbind
>>>
>>> $ ls -l /usr/lib64/libnss_w*
>>> lrwxrwxrwx 1 root root    19 23 févr. 14:39
>>> /usr/lib64/libnss_winbind.so -> libnss_winbind.so.2
>>> -rwxr-xr-x 1 root root 19224 23 févr. 14:40
>>> /usr/lib64/libnss_winbind.so.2
>>> lrwxrwxrwx 1 root root    16 23 févr. 14:39 /usr/lib64/libnss_wins.so
>>> -> libnss_wins.so.2
>>> -rwxr-xr-x 1 root root 10976 23 févr. 14:40 /usr/lib64/libnss_wins.so.2
>>>
>>> System is Fedora 21 64-bit with up to date packages
>>>
>>> Thanks
>>>
>>
>> I think you are going to have to give us a bit more info, just telling
>> us it doesn't work, isn't enough.
>>
>> smb.conf, anything in the logs etc
>>
>> Rowland
>>
>
>
>
>

OK, every thing looks correct in smb.conf, though you don't need:

server role = member server
winbind trusted domains only = no

So I suppose the next question is, what is the member server joined to ?

If it is a Samba4 AD DC, then have you given your users a gidNumber 
attribute and have you given 'Domain Users' (at least) a gidNumber 
attribute ? These numbers need to be inside the range set in your 
smb.conf '10000-99999', anything outside these numbers will be ignored.

If it is a windows AD DC, then is IDMU installed, if it is, then 
uidNumbers, gidNumbers as above.

Rowland


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