[Samba] Samba3 shares cannot be mounted on linux box uisng cifs command , error "CIFS VFS: cifs_mount failed w/return code = -13"
Mario Pio Russo
mariopiorusso at ie.ibm.com
Wed Jul 15 10:06:24 UTC 2015
I have some more findings about this
it looks like getent does not get the right information from the Domain
Controller, in fact the domain user groups shows with NO member users:
getent group | grep "domain users"
domain users:x:10000:
root at seadog:~#
Now funny thing is that other folders for wwhich getent retrieves the users
correctlly are mounted fine . any idea why I don t see the users in getent?
for example:
root at seadog:~# getent group | grep "domain admins"
domain admins:x:10001:ieu94629,ieu94243,ftp3-admin,administrator
any idea?
___________________________________________________________________________________________
Mario Pio Russo, System Admin SWG IT Services Dublin, Phone & FAX: +353 1
815 2236, eMail: mariopiorusso at ie.ibm.com
IBM Ireland Product Distribution Limited registered in Ireland with number
92815. Registered Office: IBM House, Shelbourne Road, Ballsbridge, Dublin 4
(Embedded image moved to file: pic48784.gif)
From: Rowland Penny <rowlandpenny241155 at gmail.com>
To: samba at lists.samba.org
Date: 14/07/2015 20:00
Subject: Re: [Samba] Samba3 shares cannot be mounted on linux box uisng
cifs command , error "CIFS VFS: cifs_mount failed w/return code
= -13"
Sent by: "samba" <samba-bounces at lists.samba.org>
On 14/07/15 19:27, Mario Pio Russo wrote:
> well, I have configured the kdc client on the file server, joined the
> domain using net ads join and it worked fine, again getnet group , getnet
> passwd , wbinfo -u they all works perfectlly fine
Well, this sounds like samba is working correctly.
>
> I am also able to browse the shares from any windows machine joined to
the
> CCDC domain, but I am still not able to do ANY mount.cifs, not even form
> linux boxes joined to the domain :-/
Any error messages anywhere ?
Also when you say 'browse', can you give a bit more info, how are you
'browsing' and where are the shares, on the DC or somewhere else?
>
> I have no idea what's happening.
>
> P.S. another thing I have noticed is that from windows machines, when I
try
> to do a network map to a share on the samba4, it gives "Authentication
> Failure", while it was working correctly before the migration.
Well, that probably means what it says, for some reason, samba is not
recognising either your users or their passwords,
Rowland
>
> I'm running short of ideas now, any help more than welcome!
>
___________________________________________________________________________________________
>
> Mario Pio Russo, System Admin SWG IT Services Dublin, Phone & FAX: +353 1
> 815 2236, eMail: mariopiorusso at ie.ibm.com
> IBM Ireland Product Distribution Limited registered in Ireland with
number
> 92815. Registered Office: IBM House, Shelbourne Road, Ballsbridge, Dublin
4
>
> (Embedded image moved to file: pic10279.gif)
>
>
>
> From: Rowland Penny <rowlandpenny241155 at gmail.com>
> To: samba at lists.samba.org
> Date: 14/07/2015 19:07
> Subject: Re: [Samba] Samba3 shares cannot be mounted on linux box
uisng
> cifs command , error "CIFS VFS: cifs_mount failed w/return
code
> = -13"
> Sent by: "samba" <samba-bounces at lists.samba.org>
>
>
>
> On 14/07/15 18:19, Mario Pio Russo wrote:
>> Thanks Rowland!
>>
>> few answers to your question:
>>
>> 1) I used the samba-tool domain classicupgrade to "migrate" the domain
> for
>> the pdc to a new Ubuntu server with sernet-samba-4.2.2
>>
>> 2) on the DC, I have configured the service to use the old winbind, as
>> that's just enaugh for our domain and it looked more stable during the
> test
>> phasethe smb.conf of the DC is the following:
>>
>> [global]
>> workgroup = CCDC
>> realm = CCDC.LAN
>> netbios name = CCDC-SAMBA4-DC1
>> server role = active directory domain controller
>> idmap_ldb:use rfc2307 = yes
>>
>> server services = -winbindd +winbind
> Remove these lines, they are not doing anything!
>> dns forwarder = 9.0.138.50
>> #server services = -winbindd +winbind
>> idmap config CCDC:backend = ad
>> idmap config CCDC:schema_mode = rfc2307
>> idmap config CCDC:range = 10000-40000
>>
>>
>> # Store UIDs/GIDs for all other domains (including local
>> # accounts/groups of this server) in a tdb file
>> idmap config *:backend = tdb
>> idmap config *:range = 2000-9999
>>
>> # Use home directory and shell information from AD
>> winbind nss info = rfc2307
> Ok, from here on no problems.
>> tls enabled = yes
>> tls keyfile = tls/myKey.pem
>> tls certfile = tls/myCert.pem
>> tls cafile =
>>
>> [netlogon]
>> path = /var/lib/samba/sysvol/ccdc.lan/scripts
>> read only = No
>>
>> [sysvol]
>> path = /var/lib/samba/sysvol
>> read only = No
>>
>> 3) I will remove the password server as you suggested , thanks
>>
>> 4) the server is present in the domain, and getent group and getent
> passwd
>> works correctlly, however it was NOT joined with net ads join, but with
> net
>> rpc join, could this make the difference? as I am currentlly thinking of
>> removing the server from the domain, configure kerberos-workstation and
> try
>> the net ads join, what do you think?
> If getent is working, then there should be no reason to leave & rejoin
> the domain, but then again, there is no reason not to try it :-)
>
> Rowland
>
>> again thanks for the help
>>
>>
>>
>>
>
___________________________________________________________________________________________
>
>> Mario Pio Russo, System Admin SWG IT Services Dublin, Phone & FAX: +353
1
>> 815 2236, eMail: mariopiorusso at ie.ibm.com
>> IBM Ireland Product Distribution Limited registered in Ireland with
> number
>> 92815. Registered Office: IBM House, Shelbourne Road, Ballsbridge,
Dublin
> 4
>> (Embedded image moved to file: pic40897.gif)
>>
>>
>>
>> From: Rowland Penny
<rowlandpenny241155 at gmail.com>
>> To: samba at lists.samba.org
>> Date: 14/07/2015 17:50
>> Subject: Re: [Samba] Samba3 shares cannot be mounted
on linux box
> uisng
>> cifs command , error "CIFS VFS: cifs_mount failed w/return
> code
>> = -13"
>> Sent by: "samba" <samba-bounces at lists.samba.org>
>>
>>
>>
>> On 14/07/15 16:49, Mario Pio Russo wrote:
>>> Good Day All
>>>
>>> I have a problem for our main fileserver base don samba 3.5.6
>>>
>>> Let's give a bit of pregress first. We had a samba 3.5.6 installation
>> which
>>> was acting as a PDC for our internal domian called CCDC. On a sapearate
>>> machine, we had another installation of samba 3.5.6 to act just as file
>>> share server.
>>>
>>> All was working ok, till I upgraded the PDC form samba 3.5.6 to samba
>>> 4.2.2 , using the classicupgrade.
>> Do you mean you upgraded an NT4 PDC via 'samba-tool domain
>> classicupgrade' to an AD DC ?
>>
>>> Now I am able to access the shares from the windows boxes added to the
>> CCDC
>>> domain, but when I try to mount a cifs share form a linux box, then I
> get
>>> the following error:
>>>
>>>
>>> mount.cifs -o
>>>
>
username=mariopio,domain=CCDC //seadog.mul.ie.ibm.com/scrap/4mario /media/
>>> Password:
>>> mount error(13): Permission denied
>>> Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)
>>>
>>> form dmesg I can see the following error:
>>>
>>> CIFS VFS: cifs_mount failed w/return code = -13
>>>
>> Your user is not known.
>>
>>> the smb.conf of the file server is the following:
>>>
>>>
>>> root at seadog:/etc/samba# cat smb.conf
>>> [global]
>>>
>>> write cache size = 131072
>>>
>>> vfs objects = full_audit
>>> full_audit:prefix = %u,%I,%m,%S
>>> # removed this, so we only log failures.
>>> # however will keep it here commented it out for future
> reference
>>> #full_audit:success = mkdir rename unlink rmdir open chown
chmod
>>> connect readlink
>>> full_audit:failure = mkdir rename unlink rmdir open chown
chmod
>>> connect readlink
>>> full_audit:facility = local7
>>> full_audit:priority = NOTICE
>>>
>>>
>>> server string = CSI Samba Server
>>> workgroup = CCDC
>>> netbios name = SEADOG
>>> realm = CCDC.LAN
>>> security = ads
>>> #security = domain
>>> wins server = 9.161.96.220
>>> server signing = mandatory
>>> password server = 9.161.96.220
>> password server shouldn't be set, let samba find it itself.
>>
>>> map untrusted to domain = yes
>>>
>>> wins support = no
>>> wins proxy = no
>>> dns proxy = no
>>> name resolve order = wins host bcast
>>>
>>> winbind use default domain = yes
>>>
>>> winbind uid = 10000-20000
>>> winbind gid = 10000-20000
>>> winbind cache time = 15
>>> winbind enum users = yes
>>> winbind enum groups = yes
>>>
>>> # This is needed, a fake home folder so that users are able to
> ftp
>>> # this folder is empty but exists, do a getent passwd to see
> what
>> I
>>> mean
>>> template homedir = /home/winbind
>>>
>>> local master = no
>>> domain master = no
>>>
>>> # To o with ACL mapping to windows
>>> #
>>> dos filemode = Yes
>>> acl group control = Yes
>>> acl map full control = Yes
>>> map acl inherit = Yes
>>>
>>> guest account = nobody
>>> invalid users = root daemon bin sys sync games man lp mail
news
>> uucp
>>> proxy www-data backup list irc gnats Debian-exim sshd ntpd
>>>
>>> log file = /var/log/samba/log.%m
>>> log level = 3
>>>
>>> max log size = 2000
>>> syslog = 0
>>>
>>> # using these options copied from clearcase.
>>> # back in the day we did research these to death
>>> #
>>> # socket options = SO_RCVBUF=8192 SO_SNDBUF=8192 SO_KEEPALIVE
>>> IPTOS_LOWDELAY TCP_NODELAY
>>> socket options = SO_RCVBUF=262144 SO_SNDBUF=262144
SO_KEEPALIVE
>>> IPTOS_LOWDELAY TCP_NODELAY
>>>
>>> # This disables print options
>>> # we are not a print server
>>> #
>>> load printers = No
>>> disable spoolss = Yes
>>>
>>> smb ports = 139
>>>
>>> # every mount from the SAN has a lost+found folder
>>> # to avoid user confusion, have set this to hidden
>>> #
>>> hide files = /lost+found/
>>>
>>> aio read size = 1
>>> aio write size = 1
>>> follow symlinks = no
>>>
>>>
>>>
>>> [scrap]
>>> comment = ICS - CSI general scrap Area
>>> path = /export/ICS/CSI/scrap
>>> valid users = @"Domain Users"
>>> force create mode = 750
>>> force directory mode = 740
>>> writeable = Yes
>>> browseable = Yes
>>>
>>>
>>>
>>>
>>> note that on this fileserver nothing was touched during the
>> classiupgrade,
>>> a part the following parameters of the smb.conf
>> Well, it probably should have been :-)
>>
>>> realm = CCDC.LAN
>>> security = ads
>>> wins server = 9.161.96.220
>>>
>>> password server = 9.161.96.220
>>>
>>>
>>>
>>> I have tried already different Linux machine with different
distribution
>>> and I always get the same error, I have also tried to add the parameter
>>> "sec=ntlm or ntlmi " but hasn't changed much.
>>>
>>> Note that for some historical reason, this file server has NOT a
kerbero
>>> workstation installation and was joined to the CCDC domain using net
rpc
>>> join instead of net ads join, could this be a problem?
>> It would seem the domain has been upgraded to AD and your fileserver may
>> require joining to the new domain, but it is more likely to be something
>> to do with the winbindd changes that came in with 4.2.0, see here:
>>
>> https://www.samba.org/samba/history/samba-4.2.0.html
>>
>> Rowland
>>
>>> any help is much appreciated!!!!
>>>
>>>
>>> thanks
>>>
>
___________________________________________________________________________________________
>
>>> Mario Pio Russo, System Admin SWG IT Services Dublin, Phone & FAX: +353
> 1
>>> 815 2236, eMail: mariopiorusso at ie.ibm.com
>>> IBM Ireland Product Distribution Limited registered in Ireland with
>> number
>>> 92815. Registered Office: IBM House, Shelbourne Road, Ballsbridge,
> Dublin
>> 4
>>> (Embedded image moved to file: pic44465.gif)
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