samba - Jul 2003 - Modify ownership of a file or folder from within windows - Please help!

Hi

I have posted this message twice already I really need to know if this can
be done with samba and winbind.  Please can anyone help?

I have a Redhat 8 server running samba 2.2.8a and have configured samba
to use winbind so that I can control access to the samba file shares using
user and group accounts that have been set up in our windows NT domain.
This all works fine on the shares I set up from within the smb.conf
file. Windows 2000 users can access the shares just by logging into our
domain. But what I would like to do is control user or group access to a
file or a folder that has been created underneath one of the initial
samba shares. For example: if I have a samba share called "temp" and I
then access this share from a windows 2000 PC and create a new folder
inside "temp" called "myfolder" can I then go to the
properties of this
new folder, click on the security tab and then add or remove users or
groups from the NT domain that can have access to "myfolder".  At the
moment if I try do this I can add users or groups from our domain and
specify what access each should have ie: read only or full control, but
when I click on the "OK" button to apply these changes I get an error
saying "Unable to save permission changes on myfolder. Access is
denied"
. Is this type of permission change possible and if so what am I doing
wrong?

Just as an asside, I have set samba up as a windows print server in the
past using winbind and our NT domain accounts/groups for authentication
and have been able to control access to the shared printers through the
security tab no problems.

Cheers
Tom



Below is a copy of my smb.conf file:

# This is the main Samba configuration file. You should read the
# smb.conf(5) manual page in order to understand the options listed
# here. Samba has a huge number of configurable options (perhaps too
# many!) most of which are not shown in this example
#
# Any line which starts with a ; (semi-colon) or a # (hash)
# is a comment and is ignored. In this example we will use a #
# for commentry and a ; for parts of the config file that you
# may wish to enable
#
# NOTE: Whenever you modify this file you should run the command
"testparm"
# to check that you have not many any basic syntactic errors.
#
#======================= Global Settings
====================================[global]

##
## Basic Server Settings
##

        # workgroup = NT-Domain-Name or Workgroup-Name, eg: REDHAT4
        workgroup = DPIWE

        # server string is the equivalent of the NT Description field
        server string = sybil

        # This option is important for security. It allows you to restrict
        # connections to machines which are on your local network. The
        # following example restricts access to two C class networks and
        # the "loopback" interface. For more examples of the syntax
see
        # the smb.conf man page
        ; hosts allow = 192.168.1. 192.168.2.0./24
192.168.3.0/255.255.255.0 127.0.0.1

        # Uncomment this if you want a guest account, you must add this
to /etc/passwd
        # otherwise the user "nobody" is used
        ; guest account = pcguest

        # this tells Samba to use a separate log file for each machine
        # that connects
        #log file = /usr/local/samba/var/log.%m

        # How much information do you want to see in the logs?
        # default is only to log critical messages
         log level = 2

        # Put a capping on the size of the log files (in Kb).
        max log size = 50

        # Security mode. Most people will want user level security. See
        # security_level.txt for details.
        security = domain

        # 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.
        # Note: Consider carefully the location in the configuration
file of
        #       this line.  The included file is read at that point.
        ;   include = /usr/local/samba/lib/smb.conf.%m

        # Most people will find that this option gives better performance.
        # See speed.txt and the manual pages for details
        # You may want to add the following on a Linux system:
        #         SO_RCVBUF=8192 SO_SNDBUF=8192
         socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192

        # Configure Samba to use multiple interfaces
        # If you have multiple network interfaces and want to limit
smbd will
        # use, list the ones desired here.  Otherwise smbd & nmbd will
bind to all
        # active interfaces on the system.  See the man page for details.
        ;   interfaces = 192.168.12.2/24 192.168.13.2/24

        # Should smbd report that it has MS-DFS Capabilities? Only
available
        # if --with-msdfs was passed to ./configure
        ; host msdfs = yes

##
## Network Browsing
##
        # set local master to no if you don't want Samba to become a master
        # browser on your network. Otherwise the normal election rules
apply
        local master = no

        # OS Level determines the precedence of this server in master
browser
        # elections. The default value (20) should be reasonable
        ; os level = 20

        # Domain Master specifies Samba to be the Domain Master
Browser. This
        # allows Samba to collate browse lists between subnets. Don't
use this
        # if you already have a Windows NT domain controller doing this job
        ; domain master = yes

        # Preferred Master causes Samba to force a local browser
election on startup
        # and gives it a slightly higher chance of winning the election
        ; preferred master = yes


##
## WINS & Name Resolution
##
        # Windows Internet Name Serving Support Section:
        # WINS Support - Tells the NMBD component of Samba to enable
it's WINS Server
        ; wins support = yes

        # 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 = 147.109.11.238

        # WINS Proxy - Tells Samba to answer name resolution queries on
        # behalf of a non WINS capable client, for this to work there
must be
        # at least one  WINS Server on the network. The default is NO.
        ; wins proxy = yes

        # DNS Proxy - tells Samba whether or not to try to resolve
NetBIOS names
        # via DNS nslookups.
        dns proxy = no


##
## Passwords & Authentication
##
        # Use password server option only with security = server
        # The argument list may include:
        #   password server = My_PDC_Name [My_BDC_Name] [My_Next_BDC_Name]
        # or to auto-locate the domain controller/s
           password server = *
        ;   password server = <NT-Server-Name>

        # You may wish to use password encryption. Please read
        # ENCRYPTION.txt, Win95.txt and WinNT.txt in the Samba
documentation.
        # Do not enable this option unless you have read those documents
          encrypt passwords = yes

        # Should smbd obey the session and account lines in
/etc/pam.d/samba ?
        # only available if --with-pam was used at compile time
        ; obey pam restrictions = yes

        # When using encrypted passwords, Samba can synchronize the local
        # UNIX password as well.  You will also need the "passwd chat"
parameters
        ; unix password sync = yes

        # how should smbd talk to the local system when changing a UNIX
        # password?  See smb.conf(5) for details
        ; passwd chat = <custom chat string>

        # This is only available if you compiled Samba to include
--with-pam
        # Use PAM for changing the password
        ; pam password change = yes

##
## Domain Control
##
        # Enable this if you want Samba act as a domain controller.
        # make sure you have read the Samba-PDC-HOWTO included in the
documentation
        # before enabling this parameter
        ;   domain logons = yes

        # if you enable domain logons then you may want a per-machine or
        # per user logon script
        # run a specific logon batch file per workstation (machine)
        ; logon script = %m.bat
        # run a specific logon batch file per username
        ; logon script = %U.bat

        # Where to store roving profiles (only for Win95 and WinNT)
        #        %L substitutes for this servers netbios name, %U is
username
        #        You must uncomment the [Profiles] share below
        ; logon path = \\%L\Profiles\%U

        # UNC path specifying the network location of the user's home
directory
        # only used when acting as a DC for WinNT/2k/XP.  Ignored by
Win9x clients
        ; logon home = \\%L\%U

        # What drive should the "logon home" be mounted at upon login
?
        # only used when acting as a DC for WinNT/2k/XP.  Ignored by
Win9x clients
        ; logon drive = H:

##
## Printing
##

        # If you want to automatically load your printer list rather
        # than setting them up individually then you'll need this
        ; load printers = yes

        # you may wish to override the location of the printcap file
        ; printcap name = /etc/printcap

        # on SystemV system setting printcap name to lpstat should allow
        # you to automatically obtain a printer list from the SystemV spool
        # system
        ; printcap name = lpstat

        # It should not be necessary to specify the print system type
unless
        # it is non-standard. Currently supported print systems include:
        # bsd, sysv, plp, lprng, aix, hpux, qnx
        ; printing = bsd

        # Enable this to make Samba 2.2 behavior just like Samba 2.0
        # not recommended nuless you are sure of what you are doing
        ; disable spoolss = yes

        # list of users and groups which should be able to remotely manage
        # printer drivers installed on the server
        ; printer admin = root, +ntadmin


##
## Winbind
##

        # specify the uid range which can be used by winbindd
        # to allocate uids for Windows users as necessary
         winbind uid = 10000-20000

        # specify the uid range which can be used by winbindd
        # to allocate uids for Windows users as necessary
         winbind gid = 10000-20000

        # Define a home directory to be given to passwd(5) style entries
        # generated by libnss_winbind.so.  You can use variables here
        ; winbind template homedir = /home/%D/%U

        # Specify a shell for all winbind user entries return by the
        # libnss_winbind.so library.
        ; winbind template shell = /bin/sh

        # What character should be used to separate the DOMAIN and Username
        # for a Windows user.  The default is DOMAIN\user, but many people
        # prefer DOMAIN+user
         winbind separator = +

        winbind enum users = yes
        winbind enum groups = yes
        winbind use default domain = yes

        # Winbind cache time sets the amount of time in seconds before it
        # the Primary Domain Controller agian.
        winbind cache time = 600
        #winbind cache time = 15

        # Veto the Apple specific files that a NetAtalk server
        # creates.
        veto files = /.AppleDouble/.bin/.AppleDesktop/Network Trash
Folder/.AppleDB/
        delete veto files = yes

        dos filetimes = yes

        map archive = yes


#============================ Share Definitions
=============================
#[cit]
#     comment = Test Directory
#     path = /tmp
#     public = no
#     browseable = yes
#     writable = yes
#     valid users = @dpiwe+cit

[Graphic Serv]
        comment = Graphic Services
        path = /data/sybil/Graphic_Services
        public = no
        writeable = yes
        browseable = yes
        valid users = @dpiwe+gsu, @dpiwe+gsu_mgmt, @dpiwe+cit
        create mask = 0777
        directory mask = 0777
        force create mode = 0777
        force directory mode = 0777

[Photogram]
        comment = Photogrammetry
        path = /data/sybil/Photogrammetry
        public = no
        browseable = yes
        read list = @dpiwe+tis, dpiwe+daustin, dpiwe+mnoonan,
dpiwe+mgay, dpiwe+ssellers
        write list = @dpiwe+gpr, @dpiwe+gpr_mgmt
        create mask = 0777
        directory mask = 0777
        force create mode = 0777
        force directory mode = 0777

[Reprographic]
        comment = Reprographics
        path = /data/sybil/Reprographics
        writeable = yes
        public = no
        browseable = yes
        valid users = @dpiwe+gpr, @dpiwe+gpr_mgmt, @dpiwe+cit,
dpiwe+gharrington
        create mask = 0777
        directory mask = 0777
        force create mode = 0777
        force directory mode = 0777

On Tue, 8 Jul 2003, Tom Pride wrote:
> Hi
>
> I have posted this message twice already I really need to know if this can
> be done with samba and winbind.  Please can anyone help?
Firstly, YES! It can be done.

Secondly, only if you have permission under the UNIx /Linux OS to change
ownership. ie: If 'billyg' wants to change ownerhip of a file or folder
owned by 'maryo' and 'billyg' is not a member of the
'root' group then try
as 'billyg' might, this user has no authority to make that change.

Thirdly, if you want to set miscellaneous (as per Win2K Access Control
Lists) permissions then you MUST have Posix ACLs support in the file
system _AND_ samba must have been compiled and linked with the ACLs
libraries.

For Red Hat Linux 8 you would need to add the BestBits ACLs patch and
rebuild your kernel. You will also need to rebuilt Samba so it is linked
with the acls-devel libraries. In the absence of this action you do NOT
have ACLs support.

Lastly, you might want to wait until Samba-3.0.0 ships given that a lot of
the ACLs handling code has been cleaned up for this release. We hope to
have 3.0.0 out during August.

- John T.
>
> I have a Redhat 8 server running samba 2.2.8a and have configured samba
> to use winbind so that I can control access to the samba file shares using
> user and group accounts that have been set up in our windows NT domain.
> This all works fine on the shares I set up from within the smb.conf
> file. Windows 2000 users can access the shares just by logging into our
> domain. But what I would like to do is control user or group access to a
> file or a folder that has been created underneath one of the initial
> samba shares. For example: if I have a samba share called "temp"
and I
> then access this share from a windows 2000 PC and create a new folder
> inside "temp" called "myfolder" can I then go to the
properties of this
> new folder, click on the security tab and then add or remove users or
> groups from the NT domain that can have access to "myfolder".  At
the
> moment if I try do this I can add users or groups from our domain and
> specify what access each should have ie: read only or full control, but
> when I click on the "OK" button to apply these changes I get an
error
> saying "Unable to save permission changes on myfolder. Access is
denied"
> . Is this type of permission change possible and if so what am I doing
> wrong?
>
> Just as an asside, I have set samba up as a windows print server in the
> past using winbind and our NT domain accounts/groups for authentication
> and have been able to control access to the shared printers through the
> security tab no problems.
>
> Cheers
> Tom
>
>
>
> Below is a copy of my smb.conf file:
>
> # This is the main Samba configuration file. You should read the
> # smb.conf(5) manual page in order to understand the options listed
> # here. Samba has a huge number of configurable options (perhaps too
> # many!) most of which are not shown in this example
> #
> # Any line which starts with a ; (semi-colon) or a # (hash)
> # is a comment and is ignored. In this example we will use a #
> # for commentry and a ; for parts of the config file that you
> # may wish to enable
> #
> # NOTE: Whenever you modify this file you should run the command
"testparm"
> # to check that you have not many any basic syntactic errors.
> #
> #======================= Global Settings
> ====================================> [global]
>
> ##
> ## Basic Server Settings
> ##
>
>         # workgroup = NT-Domain-Name or Workgroup-Name, eg: REDHAT4
>         workgroup = DPIWE
>
>         # server string is the equivalent of the NT Description field
>         server string = sybil
>
>         # This option is important for security. It allows you to restrict
>         # connections to machines which are on your local network. The
>         # following example restricts access to two C class networks and
>         # the "loopback" interface. For more examples of the
syntax see
>         # the smb.conf man page
>         ; hosts allow = 192.168.1. 192.168.2.0./24
> 192.168.3.0/255.255.255.0 127.0.0.1
>
>         # Uncomment this if you want a guest account, you must add this
> to /etc/passwd
>         # otherwise the user "nobody" is used
>         ; guest account = pcguest
>
>         # this tells Samba to use a separate log file for each machine
>         # that connects
>         #log file = /usr/local/samba/var/log.%m
>
>         # How much information do you want to see in the logs?
>         # default is only to log critical messages
>          log level = 2
>
>         # Put a capping on the size of the log files (in Kb).
>         max log size = 50
>
>         # Security mode. Most people will want user level security. See
>         # security_level.txt for details.
>         security = domain
>
>         # 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.
>         # Note: Consider carefully the location in the configuration
> file of
>         #       this line.  The included file is read at that point.
>         ;   include = /usr/local/samba/lib/smb.conf.%m
>
>         # Most people will find that this option gives better performance.
>         # See speed.txt and the manual pages for details
>         # You may want to add the following on a Linux system:
>         #         SO_RCVBUF=8192 SO_SNDBUF=8192
>          socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192
>
>         # Configure Samba to use multiple interfaces
>         # If you have multiple network interfaces and want to limit
> smbd will
>         # use, list the ones desired here.  Otherwise smbd & nmbd will
> bind to all
>         # active interfaces on the system.  See the man page for details.
>         ;   interfaces = 192.168.12.2/24 192.168.13.2/24
>
>         # Should smbd report that it has MS-DFS Capabilities? Only
> available
>         # if --with-msdfs was passed to ./configure
>         ; host msdfs = yes
>
> ##
> ## Network Browsing
> ##
>         # set local master to no if you don't want Samba to become a
master
>         # browser on your network. Otherwise the normal election rules
> apply
>         local master = no
>
>         # OS Level determines the precedence of this server in master
> browser
>         # elections. The default value (20) should be reasonable
>         ; os level = 20
>
>         # Domain Master specifies Samba to be the Domain Master
> Browser. This
>         # allows Samba to collate browse lists between subnets. Don't
> use this
>         # if you already have a Windows NT domain controller doing this job
>         ; domain master = yes
>
>         # Preferred Master causes Samba to force a local browser
> election on startup
>         # and gives it a slightly higher chance of winning the election
>         ; preferred master = yes
>
>
> ##
> ## WINS & Name Resolution
> ##
>         # Windows Internet Name Serving Support Section:
>         # WINS Support - Tells the NMBD component of Samba to enable
> it's WINS Server
>         ; wins support = yes
>
>         # 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 = 147.109.11.238
>
>         # WINS Proxy - Tells Samba to answer name resolution queries on
>         # behalf of a non WINS capable client, for this to work there
> must be
>         # at least one  WINS Server on the network. The default is NO.
>         ; wins proxy = yes
>
>         # DNS Proxy - tells Samba whether or not to try to resolve
> NetBIOS names
>         # via DNS nslookups.
>         dns proxy = no
>
>
> ##
> ## Passwords & Authentication
> ##
>         # Use password server option only with security = server
>         # The argument list may include:
>         #   password server = My_PDC_Name [My_BDC_Name] [My_Next_BDC_Name]
>         # or to auto-locate the domain controller/s
>            password server = *
>         ;   password server = <NT-Server-Name>
>
>         # You may wish to use password encryption. Please read
>         # ENCRYPTION.txt, Win95.txt and WinNT.txt in the Samba
> documentation.
>         # Do not enable this option unless you have read those documents
>           encrypt passwords = yes
>
>         # Should smbd obey the session and account lines in
> /etc/pam.d/samba ?
>         # only available if --with-pam was used at compile time
>         ; obey pam restrictions = yes
>
>         # When using encrypted passwords, Samba can synchronize the local
>         # UNIX password as well.  You will also need the "passwd
chat"
> parameters
>         ; unix password sync = yes
>
>         # how should smbd talk to the local system when changing a UNIX
>         # password?  See smb.conf(5) for details
>         ; passwd chat = <custom chat string>
>
>         # This is only available if you compiled Samba to include
> --with-pam
>         # Use PAM for changing the password
>         ; pam password change = yes
>
> ##
> ## Domain Control
> ##
>         # Enable this if you want Samba act as a domain controller.
>         # make sure you have read the Samba-PDC-HOWTO included in the
> documentation
>         # before enabling this parameter
>         ;   domain logons = yes
>
>         # if you enable domain logons then you may want a per-machine or
>         # per user logon script
>         # run a specific logon batch file per workstation (machine)
>         ; logon script = %m.bat
>         # run a specific logon batch file per username
>         ; logon script = %U.bat
>
>         # Where to store roving profiles (only for Win95 and WinNT)
>         #        %L substitutes for this servers netbios name, %U is
> username
>         #        You must uncomment the [Profiles] share below
>         ; logon path = \\%L\Profiles\%U
>
>         # UNC path specifying the network location of the user's home
> directory
>         # only used when acting as a DC for WinNT/2k/XP.  Ignored by
> Win9x clients
>         ; logon home = \\%L\%U
>
>         # What drive should the "logon home" be mounted at upon
login ?
>         # only used when acting as a DC for WinNT/2k/XP.  Ignored by
> Win9x clients
>         ; logon drive = H:
>
> ##
> ## Printing
> ##
>
>         # If you want to automatically load your printer list rather
>         # than setting them up individually then you'll need this
>         ; load printers = yes
>
>         # you may wish to override the location of the printcap file
>         ; printcap name = /etc/printcap
>
>         # on SystemV system setting printcap name to lpstat should allow
>         # you to automatically obtain a printer list from the SystemV spool
>         # system
>         ; printcap name = lpstat
>
>         # It should not be necessary to specify the print system type
> unless
>         # it is non-standard. Currently supported print systems include:
>         # bsd, sysv, plp, lprng, aix, hpux, qnx
>         ; printing = bsd
>
>         # Enable this to make Samba 2.2 behavior just like Samba 2.0
>         # not recommended nuless you are sure of what you are doing
>         ; disable spoolss = yes
>
>         # list of users and groups which should be able to remotely manage
>         # printer drivers installed on the server
>         ; printer admin = root, +ntadmin
>
>
> ##
> ## Winbind
> ##
>
>         # specify the uid range which can be used by winbindd
>         # to allocate uids for Windows users as necessary
>          winbind uid = 10000-20000
>
>         # specify the uid range which can be used by winbindd
>         # to allocate uids for Windows users as necessary
>          winbind gid = 10000-20000
>
>         # Define a home directory to be given to passwd(5) style entries
>         # generated by libnss_winbind.so.  You can use variables here
>         ; winbind template homedir = /home/%D/%U
>
>         # Specify a shell for all winbind user entries return by the
>         # libnss_winbind.so library.
>         ; winbind template shell = /bin/sh
>
>         # What character should be used to separate the DOMAIN and Username
>         # for a Windows user.  The default is DOMAIN\user, but many people
>         # prefer DOMAIN+user
>          winbind separator = +
>
>         winbind enum users = yes
>         winbind enum groups = yes
>         winbind use default domain = yes
>
>         # Winbind cache time sets the amount of time in seconds before it
>         # the Primary Domain Controller agian.
>         winbind cache time = 600
>         #winbind cache time = 15
>
>         # Veto the Apple specific files that a NetAtalk server
>         # creates.
>         veto files = /.AppleDouble/.bin/.AppleDesktop/Network Trash
> Folder/.AppleDB/
>         delete veto files = yes
>
>         dos filetimes = yes
>
>         map archive = yes
>
>
> #============================ Share Definitions
> =============================>
> #[cit]
> #     comment = Test Directory
> #     path = /tmp
> #     public = no
> #     browseable = yes
> #     writable = yes
> #     valid users = @dpiwe+cit
>
> [Graphic Serv]
>         comment = Graphic Services
>         path = /data/sybil/Graphic_Services
>         public = no
>         writeable = yes
>         browseable = yes
>         valid users = @dpiwe+gsu, @dpiwe+gsu_mgmt, @dpiwe+cit
>         create mask = 0777
>         directory mask = 0777
>         force create mode = 0777
>         force directory mode = 0777
>
> [Photogram]
>         comment = Photogrammetry
>         path = /data/sybil/Photogrammetry
>         public = no
>         browseable = yes
>         read list = @dpiwe+tis, dpiwe+daustin, dpiwe+mnoonan,
> dpiwe+mgay, dpiwe+ssellers
>         write list = @dpiwe+gpr, @dpiwe+gpr_mgmt
>         create mask = 0777
>         directory mask = 0777
>         force create mode = 0777
>         force directory mode = 0777
>
> [Reprographic]
>         comment = Reprographics
>         path = /data/sybil/Reprographics
>         writeable = yes
>         public = no
>         browseable = yes
>         valid users = @dpiwe+gpr, @dpiwe+gpr_mgmt, @dpiwe+cit,
> dpiwe+gharrington
>         create mask = 0777
>         directory mask = 0777
>         force create mode = 0777
>         force directory mode = 0777
>
>
-- 
John H Terpstra
Email: jht@samba.org