[Samba] Users can read/write to other user's directories

Richard Thomas rich_d_thomas at hotmail.com
Sat Sep 27 10:32:11 GMT 2008


Hi,

I am setting up Samba on my CentOS server and have Samba version 3.0.28-1.el5_2.1.

I started configuring the smb.conf file and then went on to use webmin to configure it.

I have made sure I have restarted Samba after making changes.

When I connect from my Windows PC to the Samba server, I can read and write to other Samba user's directories.

Here is an ls from my CentOS server:

drwx------ 3 user2   user2        4096 Sep 18 19:33 user2
drwx------ 2 root    root        16384 Sep 17 20:58 lost+found
drwx------ 3 user1   user1       12288 Sep 18 22:40 user1
-rw-r--r-- 1 root    root    506232832 Sep 17 21:02 test.bin


and below is my smb.conf file.

Could anyone help me please and let me know what I can look at to see why one user can see another user's directory.

Thanks in advance.

Richard.

# 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
#
# For a step to step guide on installing, configuring and using samba,
# read the Samba-HOWTO-Collection. This may be obtained from:
#  http://www.samba.org/samba/docs/Samba-HOWTO-Collection.pdf
#
# Many working examples of smb.conf files can be found in the
# Samba-Guide which is generated daily and can be downloaded from:
#  http://www.samba.org/samba/docs/Samba-Guide.pdf
#
# 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 made any basic syntactic errors.
#
#---------------
# SELINUX NOTES:
#
# If you want to use the useradd/groupadd family of binaries please run:
# setsebool -P samba_domain_controller on
#
# If you want to share home directories via samba please run:
# setsebool -P samba_enable_home_dirs on
#
# If you create a new directory you want to share you should mark it as
# "samba-share_t" so that selinux will let you write into it.
# Make sure not to do that on system directories as they may already have
# been marked with othe SELinux labels.
#
# Use ls -ldZ /path to see which context a directory has
#
# Set labels only on directories you created!
# To set a label use the following: chcon -t samba_share_t /path
#
# If you need to share a system created directory you can use one of the
# following (read-only/read-write):
# setsebool -P samba_export_all_ro on
# or
# setsebool -P samba_export_all_rw on
#
# If you want to run scripts (preexec/root prexec/print command/...) please
# put them into the /var/lib/samba/scripts directory so that smbd will be
# allowed to run them.
# Make sure you COPY them and not MOVE them so that the right SELinux context
# is applied, to check all is ok use restorecon -R -v /var/lib/samba/scripts
#
#--------------
#
#======================= Global Settings =====================================

[global]
    load printers = no
    cups options = raw
    server string = Samba Server Version %v
    socket options = TCP_NODELAY
    unix password sync = no
    workgroup = MYGROUP
    debug level = 5
    security = user
#    security = share
    passdb backend = tdbsam


# ----------------------- Network Related Options -------------------------
#
# workgroup = NT-Domain-Name or Workgroup-Name, eg: MIDEARTH
#
# server string is the equivalent of the NT Description field
#
# netbios name can be used to specify a server name not tied to the hostname
#
# Interfaces lets you configure Samba to use multiple interfaces
# If you have multiple network interfaces then you can list the ones
# you want to listen on (never omit localhost)
#
# Hosts Allow/Hosts Deny lets you restrict who can connect, and you can
# specifiy it as a per share option as well
#

;    netbios name = MYSERVER

;    interfaces = lo eth0 192.168.12.2/24 192.168.13.2/24
;    hosts allow = 127. 192.168.12. 192.168.13.

# --------------------------- Logging Options -----------------------------
#
# Log File let you specify where to put logs and how to split them up.
#
# Max Log Size let you specify the max size log files should reach

    # logs split per machine
;    log file = /var/log/samba/%m.log
    # max 50KB per log file, then rotate
;    max log size = 50

# ----------------------- Standalone Server Options ------------------------
#
# Security can be set to user, share(deprecated) or server(deprecated)
#
# Backend to store user information in. New installations should
# use either tdbsam or ldapsam. smbpasswd is available for backwards
# compatibility. tdbsam requires no further configuration.



# ----------------------- Domain Members Options ------------------------
#
# Security must be set to domain or ads
#
# Use the realm option only with security = ads
# Specifies the Active Directory realm the host is part of
#
# Backend to store user information in. New installations should
# use either tdbsam or ldapsam. smbpasswd is available for backwards
# compatibility. tdbsam requires no further configuration.
#
# Use password server option only with security = server or if you can't
# use the DNS to locate Domain Controllers
# 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 = *


;    security = domain
;    passdb backend = tdbsam
;    realm = MY_REALM

;    password server = <NT-Server-Name>

# ----------------------- Domain Controller Options ------------------------
#
# Security must be set to user for domain controllers
#
# Backend to store user information in. New installations should
# use either tdbsam or ldapsam. smbpasswd is available for backwards
# compatibility. tdbsam requires no further configuration.
#
# 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 Logons let Samba be a domain logon server for Windows workstations.
#
# Logon Scrpit let yuou specify a script to be run at login time on the client
# You need to provide it in a share called NETLOGON
#
# Logon Path let you specify where user profiles are stored (UNC path)
#
# Various scripts can be used on a domain controller or stand-alone
# machine to add or delete corresponding unix accounts
#
;    security = user
;    passdb backend = tdbsam

;    domain master = yes
;    domain logons = yes

    # the login script name depends on the machine name
;    logon script = %m.bat
    # the login script name depends on the unix user used
;    logon script = %u.bat
;    logon path = \\%L\Profiles\%u
    # disables profiles support by specifing an empty path
;    logon path =  

;    add user script = /usr/sbin/useradd "%u" -n -g users
;    add group script = /usr/sbin/groupadd "%g"
;    add machine script = /usr/sbin/useradd -n -c "Workstation (%u)" -M -d /nohome -s /bin/false "%u"
;    delete user script = /usr/sbin/userdel "%u"
;    delete user from group script = /usr/sbin/userdel "%u" "%g"
;    delete group script = /usr/sbin/groupdel "%g"


# ----------------------- Browser Control Options ----------------------------
#
# 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
#
# OS Level determines the precedence of this server in master browser
# elections. The default value should be reasonable
#
# Preferred Master causes Samba to force a local browser election on startup
# and gives it a slightly higher chance of winning the election
;    local master = no
;    os level = 33
;    preferred master = yes

#----------------------------- Name Resolution -------------------------------
# Windows Internet Name Serving Support Section:
# Note: Samba can be either a WINS Server, or a WINS Client, but NOT both
#
# - WINS Support: Tells the NMBD component of Samba to enable it's WINS Server
#
# - WINS Server: Tells the NMBD components of Samba to be a WINS Client
#
# - 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.
#
# DNS Proxy - tells Samba whether or not to try to resolve NetBIOS names
# via DNS nslookups.

;    wins support = yes
;    wins server = w.x.y.z
;    wins proxy = yes

;    dns proxy = yes

# --------------------------- Printing Options -----------------------------
#
# Load Printers let you load automatically the list of printers rather
# than setting them up individually
#
# Cups Options let you pass the cups libs custom options, setting it to raw
# for example will let you use drivers on your Windows clients
#
# Printcap Name let you specify an alternative printcap file
#
# You can choose a non default printing system using the Printing option


;    printcap name = /etc/printcap
    #obtain list of printers automatically on SystemV
;    printcap name = lpstat
;    printing = cups

# --------------------------- Filesystem Options ---------------------------
#
# The following options can be uncommented if the filesystem supports
# Extended Attributes and they are enabled (usually by the mount option
# user_xattr). Thess options will let the admin store the DOS attributes
# in an EA and make samba not mess with the permission bits.
#
# Note: these options can also be set just per share, setting them in global
# makes them the default for all shares

;    map archive = no
;    map hidden = no
;    map read only = no
;    map system = no
;    store dos attributes = yes


#============================ Share Definitions ==============================



[user1]
    writeable = yes
    path = /home2/user1
    force group = user1
    force user = user1
    comment = user1
    create mode = 700
    directory mode = 700
[user2]
    writeable = yes
    path = /home2/user2
    force group = user2
    force user = user2
    comment = user2
    create mode = 700
    directory mode = 700



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