RE: [squid-users] winbind directories permissions issue

>>>>> 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.

I am back, sorry but the problem is happening again .... do you get some
other ideas because this is becoming a real big issue here .. thks.

>
>>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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Received on Mon Dec 08 2008 - 09:00:25 MST