[Samba] Can't get idmap connected to AD unix attribs

[Nick Triantos]

Hi Rowland,

Yes, I've added their unix attributes.

It looks like there is a long-open bug in winbind/samba 3.6.x that may be causing the error below (https://bugzilla.samba.org/show_bug.cgi?id=8676). I'm now stuck behind that so I'm trying to downgrade to 3.5.x.

regards,
-Nick

On Jul 11, 2012, at 7:05 AM, Rowland Penny wrote:

> On 11/07/12 01:57, Nick Triantos wrote:
>> Thanks Robert.
>> 
>> I've tried switching over to the AD back-end (which does sound like what I want), but I still receive only the errors:
>>    failed to call wbcGetpwnam: WBC_ERR_DOMAIN_NOT_FOUND
>> 
>> I restarted both winbind and smbd after changing the config. Is there some cache I have to flush, or some other config that needs to be changed beyond the settings in smb.conf?
>> 
>> thanks again!
>> -Nick
>> 
>> My updated smb.conf:
>> 
>>    workgroup = CORP
>>    security = ADS
>>    #password server = 192.168.77.251
>>    realm = CORP.MYCOMPANY.COM
>>    allow trusted domains = yes
>>    winbind use default domain = yes
>>    winbind nested groups = YES
>>    idmap config CORP : backend = ad
>>    idmap config CORP : default = yes
>>    idmap config CORP : schema_mode = rfc2307
>>    idmap config CORP : range = 800 - 99999
>> 
>> 
>> On Jul 10, 2012, at 7:27 AM, Robert Freeman-Day wrote:
>> 
>>> -----BEGIN PGP SIGNED MESSAGE-----
>>> Hash: SHA1
>>> 
>>> - -----BEGIN PGP SIGNED MESSAGE-----
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>>> 
>>> Nick,
>>> 
>>> I think what you may be looking for is the ad backend:
>>> 
>>> https://www.samba.org/samba/docs/man/manpages-3/idmap_ad.8.html
>>> 
>>> Since you are using tdb in your config, it is using a local database
>>> and allocates UID/GIDs on the fly...first come, first served.  So a
>>> user may not get the same UID from one machine to the next.
>>> 
>>> Robert
>>> 
>>> On 07/10/2012 12:20 AM, Nick Triantos wrote:
>>>> Hi,
>>>> 
>>>> I'm trying to get an Ubuntu 12.04 system's Samba (3.6.3) and
>>>> Winbind to map userids and groups to the unix attributes in an AD
>>>> 2008 server. I can see that when I perform an ldapsearch, I'm able
>>>> to read the attributes, and for one of my accounts, the id should
>>>> be 1001. However, when I run 'wbinfo -i<username>', I get back
>>>> something like 920.
>>>> 
>>>> At one point, I was setting the idmap range to start at 900, but
>>>> I've since removed that from my config, and restarted winbindd and
>>>> smbd. I've also tried to 'net cache flush'.
>>>> 
>>>> I also see wbinfo -i<someuser>  usually returns: failed to call
>>>> wbcGetpwnam: WBC_ERR_DOMAIN_NOT_FOUND Could not get info for user
>>>> <someuser>
>>>> 
>>>> The relevant parts of my smb.conf are below. I've tried patching
>>>> this together from various tuts and help pages. Any guidance would
>>>> be very helpful.
>>>> 
>>>> thanks! -Nick
>>>> 
>>>> [global] workgroup = CORP security = ADS password server =
>>>> 192.168.77.251 realm = CORP.MYCOMPANY.COM allow trusted domains =
>>>> yes winbind use default domain = yes winbind nested groups = YES
>>>> idmap config CORP : backend = tdb idmap config CORP : default = yes
>>>> idmap config CORP : schema_mode = rfc2307 idmap config CORP : range
>>>> = 1000 - 9999 idmap config * : backend = tdb encrypt passwords =
>>>> true obey pam restrictions = yes client use spnego = yes client
>>>> ntlmv2 auth = yes encrypt passwords = true restrict anonymous = 2
>>>> unix password sync = yes winbind enum groups = yes winbind enum
>>>> users = yes winbind nss info = rfc2307
>>>> 
>>>> 
>>> 
>>> - - --
>>> ________
>>> 
>>> Robert Freeman-Day
>>> 
>>> https://launchpad.net/~presgas
>>> GPG Public Key:
>>> http://keyserver.ubuntu.com:11371/pks/lookup?op=get&search=0xBA9DF9ED3E4C7D36
>>> 
>>> 
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>>> =yLz3
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> Hi, just a thought, have you added the RFC2307 uid/gid values to your users on the AD server? if you haven't, there will be nothing to find and it may throw the error that you are getting.
> 
> Rowland
> 
> 
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