[Samba] Users in group cannot rename or delete files/folder owned by the group

Eric Shubert ejs at shubes.net
Tue Apr 13 09:39:59 MDT 2010


sean.wilkinson at aussieit.net wrote:
> Hi all,
> 
> I am having a very strange issue with Samba, users who are not the owner
> of files but are in the same group cannot delete or rename files via
> Windows.
> 
> For example the user “sean” in the “storage.access” group CANNOT delete or
> rename a folder called temp via windows but CAN delete or rename via
> terminal session.
> 
> The folling three folders have the folling permissions:
> 
> /storage/
> /storage/storage02/
> /storage/storage02/group/
> /storage/storage02/group/temp/
> 
> drwxrwx--- 7 root storage.access
> 
> The "temp" folder is in the [group] share.
> 
> If any more information is required please let me know.
> 
> smb.conf
> 
> #======================= Global Settings =======================
> 
> [global]
> 
> ## Browsing/Identification ###
> 
> # Change this to the workgroup/NT-domain name your Samba server will part of
>    workgroup = WORKGROUP
> 
> # server string is the equivalent of the NT Description field
>    server string = %h server (Samba, Ubuntu)
> 
> # Windows Internet Name Serving Support Section:
> # WINS Support - Tells the NMBD component of Samba to enable its WINS Server
> #   wins support = no
> 
> # WINS Server - Tells the NMBD components of Samba to be a WINS Client
> # Note: Samba can be either a WINS Server, or a WINS Client, but NOT both
> ;   wins server = w.x.y.z
> 
> # This will prevent nmbd to search for NetBIOS names through DNS.
>    dns proxy = no
> 
> # What naming service and in what order should we use to resolve host names
> # to IP addresses
> ;   name resolve order = lmhosts host wins bcast
> 
> #### Networking ####
> 
> # The specific set of interfaces / networks to bind to
> # This can be either the interface name or an IP address/netmask;
> # interface names are normally preferred
> ;   interfaces = 127.0.0.0/8 eth0
> 
> # Only bind to the named interfaces and/or networks; you must use the
> # 'interfaces' option above to use this.
> # It is recommended that you enable this feature if your Samba machine is
> # not protected by a firewall or is a firewall itself.  However, this
> # option cannot handle dynamic or non-broadcast interfaces correctly.
> ;   bind interfaces only = yes
> 
> 
> 
> #### Debugging/Accounting ####
> 
> # This tells Samba to use a separate log file for each machine
> # that connects
>    log file = /var/log/samba/log.%m
> 
> # Cap the size of the individual log files (in KiB).
>    max log size = 1000
> 
> # If you want Samba to only log through syslog then set the following
> # parameter to 'yes'.
> #   syslog only = no
> 
> # We want Samba to log a minimum amount of information to syslog. Everything
> # should go to /var/log/samba/log.{smbd,nmbd} instead. If you want to log
> # through syslog you should set the following parameter to something higher.
>    syslog = 0
> 
> # Do something sensible when Samba crashes: mail the admin a backtrace
>    panic action = /usr/share/samba/panic-action %d
> 
> 
> ####### Authentication #######
> 
> # "security = user" is always a good idea. This will require a Unix account
> # in this server for every user accessing the server. See
> # /usr/share/doc/samba-doc/htmldocs/Samba3-HOWTO/ServerType.html
> # in the samba-doc package for details.
>    security = user
>    username map = /etc/samba/smbusers
> 
> # You may wish to use password encryption.  See the section on
> # 'encrypt passwords' in the smb.conf(5) manpage before enabling.
>    encrypt passwords = true
> 
> # If you are using encrypted passwords, Samba will need to know what
> # password database type you are using.
>    passdb backend = tdbsam
> 
>    obey pam restrictions = yes
> 
> # This boolean parameter controls whether Samba attempts to sync the Unix
> # password with the SMB password when the encrypted SMB password in the
> # passdb is changed.
>    unix password sync = yes
> 
> # For Unix password sync to work on a Debian GNU/Linux system, the following
> # parameters must be set (thanks to Ian Kahan
> <<kahan at informatik.tu-muenchen.de> for
> # sending the correct chat script for the passwd program in Debian Sarge).
>    passwd program = /usr/bin/passwd %u
>    passwd chat = *Enter\snew\s*\spassword:* %n\n
> *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* .
> 
> # This boolean controls whether PAM will be used for password changes
> # when requested by an SMB client instead of the program listed in
> # 'passwd program'. The default is 'no'.
>    pam password change = yes
> 
> # This option controls how unsuccessful authentication attempts are mapped
> # to anonymous connections
>    map to guest = bad user
> 
> ########## Domains ###########
> 
> # Is this machine able to authenticate users. Both PDC and BDC
> # must have this setting enabled. If you are the BDC you must
> # change the 'domain master' setting to no
> #
> ;   domain logons = yes
> #
> # The following setting only takes effect if 'domain logons' is set
> # It specifies the location of the user's profile directory
> # from the client point of view)
> # The following required a [profiles] share to be setup on the
> # samba server (see below)
> ;   logon path = \\%N\profiles\%U
> # Another common choice is storing the profile in the user's home directory
> # (this is Samba's default)
> #   logon path = \\%N\%U\profile
> 
> # The following setting only takes effect if 'domain logons' is set
> # It specifies the location of a user's home directory (from the client
> # point of view)
> ;   logon drive = H:
> #   logon home = \\%N\%U
> 
> # The following setting only takes effect if 'domain logons' is set
> # It specifies the script to run during logon. The script must be stored
> # in the [netlogon] share
> # NOTE: Must be store in 'DOS' file format convention
> ;   logon script = logon.cmd
> 
> # This allows Unix users to be created on the domain controller via the SAMR
> # RPC pipe.  The example command creates a user account with a disabled Unix
> # password; please adapt to your needs
> ; add user script = /usr/sbin/adduser --quiet --disabled-password --gecos
> "" %u
> 
> # This allows machine accounts to be created on the domain controller via the
> # SAMR RPC pipe.
> # The following assumes a "machines" group exists on the system
> ; add machine script  = /usr/sbin/useradd -g machines -c "%u machine
> account" -d /var/lib/samba -s /bin/false %u
> 
> # This allows Unix groups to be created on the domain controller via the SAMR
> # RPC pipe.
> ; add group script = /usr/sbin/addgroup --force-badname %g
> 
> ########## Printing ##########
> 
> # If you want to automatically load your printer list rather
> # than setting them up individually then you'll need this
> #   load printers = yes
> 
> # lpr(ng) printing. You may wish to override the location of the
> # printcap file
> ;   printing = bsd
> ;   printcap name = /etc/printcap
> 
> # CUPS printing.  See also the cupsaddsmb(8) manpage in the
> # cupsys-client package.
> ;   printing = cups
> ;   printcap name = cups
> 
> ############ Misc ############
> 
> # Using the following line enables you to customise your configuration
> # on a per machine basis. The %m gets replaced with the netbios name
> # of the machine that is connecting
> ;   include = /home/samba/etc/smb.conf.%m
> 
> # Most people will find that this option gives better performance.
> # See smb.conf(5) and
> /usr/share/doc/samba-doc/htmldocs/Samba3-HOWTO/speed.html
> # for details
> # You may want to add the following on a Linux system:
> #         SO_RCVBUF=8192 SO_SNDBUF=8192
> #   socket options = TCP_NODELAY
> 
> # The following parameter is useful only if you have the linpopup package
> # installed. The samba maintainer and the linpopup maintainer are
> # working to ease installation and configuration of linpopup and samba.
> ;   message command = /bin/sh -c '/usr/bin/linpopup "%f" "%m" %s; rm %s' &
> 
> # Domain Master specifies Samba to be the Domain Master Browser. If this
> # machine will be configured as a BDC (a secondary logon server), you
> # must set this to 'no'; otherwise, the default behavior is recommended.
> #   domain master = auto
> 
> # Some defaults for winbind (make sure you're not using the ranges
> # for something else.)
> ;   idmap uid = 10000-20000
> ;   idmap gid = 10000-20000
> ;   template shell = /bin/bash
> 
> # The following was the default behaviour in sarge,
> # but samba upstream reverted the default because it might induce
> # performance issues in large organizations.
> # See Debian bug #368251 for some of the consequences of *not*
> # having this setting and smb.conf(5) for details.
> ;   winbind enum groups = yes
> ;   winbind enum users = yes
> 
> # Setup usershare options to enable non-root users to share folders
> # with the net usershare command.
> 
> # Maximum number of usershare. 0 (default) means that usershare is disabled.
> ;   usershare max shares = 100
> 
> # Allow users who've been granted usershare privileges to create
> # public shares, not just authenticated ones
>    usershare allow guests = yes
> 
> #======================= Share Definitions =======================
> 
> # Un-comment the following (and tweak the other settings below to suit)
> # to enable the default home directory shares.  This will share each
> # user's home directory as \\server\username
> ;[homes]
> ;   comment = Home Directories
> ;   browseable = no
> 
> # By default, the home directories are exported read-only. Change the
> # next parameter to 'no' if you want to be able to write to them.
> ;   read only = yes
> 
> # File creation mask is set to 0700 for security reasons. If you want to
> # create files with group=rw permissions, set next parameter to 0775.
> ;   create mask = 0700
> 
> # Directory creation mask is set to 0700 for security reasons. If you want to
> # create dirs. with group=rw permissions, set next parameter to 0775.
> ;   directory mask = 0700
> 
> # By default, \\server\username shares can be connected to by anyone
> # with access to the samba server.  Un-comment the following parameter
> # to make sure that only "username" can connect to \\server\username
> # This might need tweaking when using external authentication schemes
> ;   valid users = %S
> 
> # Un-comment the following and create the netlogon directory for Domain
> Logons
> # (you need to configure Samba to act as a domain controller too.)
> ;[netlogon]
> ;   comment = Network Logon Service
> ;   path = /home/samba/netlogon
> ;   guest ok = yes
> ;   read only = yes
> ;   share modes = no
> 
> # Un-comment the following and create the profiles directory to store
> # users profiles (see the "logon path" option above)
> # (you need to configure Samba to act as a domain controller too.)
> # The path below should be writable by all users so that their
> # profile directory may be created the first time they log on
> ;[profiles]
> ;   comment = Users profiles
> ;   path = /home/samba/profiles
> ;   guest ok = no
> ;   browseable = no
> ;   create mask = 0600
> ;   directory mask = 0700
> 
> ;[printers]
> ;   comment = All Printers
> ;   browseable = no
> ;   path = /var/spool/samba
> ;   printable = yes
> ;   guest ok = no
> ;   read only = yes
> ;  create mask = 0700
> 
> # Windows clients look for this share name as a source of downloadable
> # printer drivers
> ;[print$]
> ;   comment = Printer Drivers
> ;   path = /var/lib/samba/printers
> ;   browseable = yes
> ;   read only = yes
> ;   guest ok = no
> # Uncomment to allow remote administration of Windows print drivers.
> # You may need to replace 'lpadmin' with the name of the group your
> # admin users are members of.
> # Please note that you also need to set appropriate Unix permissions
> # to the drivers directory for these users to have write rights in it
> ;   write list = root, @lpadmin
> 
> # A sample share for sharing your CD-ROM with others.
> ;[cdrom]
> ;   comment = Samba server's CD-ROM
> ;   read only = yes
> ;   locking = no
> ;   path = /cdrom
> ;   guest ok = yes
> 
> # The next two parameters show how to auto-mount a CD-ROM when the
> #	cdrom share is accesed. For this to work /etc/fstab must contain
> #	an entry like this:
> #
> #       /dev/scd0   /cdrom  iso9660 defaults,noauto,ro,user   0 0
> #
> # The CD-ROM gets unmounted automatically after the connection to the
> #
> # If you don't want to use auto-mounting/unmounting make sure the CD
> #	is mounted on /cdrom
> #
> ;   preexec = /bin/mount /cdrom
> ;   postexec = /bin/umount /cdrom
> 
> [sean]
>    comment = sean
>    path = /storage/storage01/sean/
>    guest ok = no
>    writeable = yes
>    read only = no
> 
> [kylie]
>    comment = kylie
>    path = /storage/storage01/kylie/
>    guest ok = no
>    writeable = yes
>    read only = no
> 
> [group]
>    comment = Storage
>    path = /storage/storage02/group/
>    guest ok = no
>    writeable = yes
>    read only = no
> 
> ===========================================================================
> 
> 
> 
	valid users = +storage.access
?

-- 
-Eric 'shubes'



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