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RE: winbind directories permissions issue

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>>>> Hello all,
>>>>
>>>> I really get a strange ( maybe not ?? ) problem. I get Squid 2.7.4
>>>> running on Solaris 8 with Samba 3.0.32. My clients are essentially
>>>> running Windows XP SP2 with IE6.
>>>>
>>>> authentication scheme is exclusively based on ntlm so this is the
>> reason
>>>> why winbindd is also running, smbd and nmbd are not running because
I
>>>> think this is not needed.
>>>>
>>>> this is all working fine but I randomly get thousands of lines
>> appearing
>>>> in cache.log file .. see below what I get.
>>>>
>>>> [2008/12/04 10:10:57, 0] utils/ntlm_auth.c:winbind_pw_check(515)
>>>>   Login for user [DOMAIN]\[user]@[desktop] failed due to [winbind
>> client
>>>> not authorized to use winbindd_pam_auth_crap. Ensure permissions on
>>>> /var/l
>>>> ib/samba/winbindd_privileged are set correctly.]
>>>>
>>>> process squid is running as user squid and group squidg so afaik
>>>> permissions below are correct ..
>>>>
>>>> 342924    1 drwxr-x---   5 root     squidg        512 Dec  4 03:36
>>>> /var/lib/samba
>>>> 354946    1 drwxr-x---   4 root     squidg        512 Nov 18 01:34
>>>> /var/lib/samba/locks
>>>> 360979    1 drwxr-x---   2 root     squidg        512 Nov 18 01:34
>>>> /var/lib/samba/locks/printing
>>>> 366989    1 drwxr-x---   2 root     squidg        512 Nov 18 01:34
>>>> /var/lib/samba/locks/winbindd_privileged
>>>> 342930    8 -rw-r-----   1 root     squidg       8192 Dec  4 03:37
>>>> /var/lib/samba/gencache.tdb
>>>> 342932    1 -rw-r-----   1 root     squidg        696 Nov 18 01:34
>>>> /var/lib/samba/idmap_cache.tdb
>>>> 342933    1 -rw-r-----   1 root     squidg        696 Dec  3 17:35
>>>> /var/lib/samba/messages.tdb
>>>> 342935   56 -rw-------   1 root     root        57344 Dec  3 17:36
>>>> /var/lib/samba/winbindd_cache.tdb
>>>> 342936 29752 -rw-r-----   1 root     squidg   30441472 Dec  4 09:58
>>>> /var/lib/samba/netsamlogon_cache.tdb
>>>> 138380    1 drwxr-x---   2 root     squidg        512 Dec  3 17:35
>>>> /var/lib/samba/winbindd_privileged
>>>> 138381    0 srwxrwxrwx   1 root     root            0 Dec  3 17:35
>>>> /var/lib/samba/winbindd_privileged/pipe
>>>> 222599    1 drwxr-x---   2 root     squidg        512 Dec  4 03:36
>>>> /var/lib/samba/smb_krb5
>>>> 342937    1 -rw-r--r--   1 root     root          268 Dec  4 03:36
>>>> /var/lib/samba/smb_krb5/krb5.conf.EUROPE
>>>>
>>>> I did not find any explanation right now except applying same
>> security
>>>> settings on directories again and reloading process squid.
>>>>
>>>> We are already running squid more than 3 years and never got the
>> problem
>>>> before ..
>>>>
>>>> Can somebody really help me because each time we encounter this
issue
>>>> hundreds of my users are impacted.
>>>>
>>>> many thanks for your help.
>>> Please first ensure that you DO NOT have cache_effective_group 
>>> configured in your squid.conf.
>>> All squid group settings under this setup need to be OS-defined 
>>> correctly and working properly that way.
>> 
>> yes sure I get 'cache_effective_user squid' & 'cache_effective_group
>> squidg' configured in squid config file ... this was alaways so ..
>> 
>> is there a specific issue with it ??
>
>The squid.conf configured group forces override of any OS settings from

>squid point of view. Particularly to the effect of erasing membership
of 
>secondary groups and group aliases. Winbind only obeys and verifies 
>against the OS settings, so there is a high likelyhood that your issue 
>is a mismatch between the privileges seen by squid with group
configured 
>and the system settings.
>
>effective_group may have been needed in 2.5 and earlier and before we 
>sorted out the winbind privileges system. But has really been obsolete 
>since group membership was fixed in Squid-2.6.
>

Amos,

many thks for your help .. I made the change yesterday morning and seems
to be okay till now. 

I keep you informed later if this stays as is. 

>Amos
>-- 
>Please be using
>   Current Stable Squid 2.7.STABLE5 or 3.0.STABLE10
>   Current Beta Squid 3.1.0.2 or 3.0.STABLE11-RC1
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