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Old 12-15-2009, 08:36 PM   #1
worm5252
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NFS and Samba Share Ownership Issue


I have an old box that I turned into a file server a while back. It is a Dell Dimensions 4100, 866MHz, 512MB RAM. I have 2 shares setup. /Data which is used for Documentation, and /Data2 which is used as a File Share.

I have NFS and SAMBA setup to map both of these shares.

My /etc/exports has these 2 lines in it.
Code:
/Data/Documentation 10.1.1.20(rw,no_root_squash,anonuid=1000,anonuid=1000)
/Data2/File_Store 10.1.1.20(rw,no_root_squash,anonuid=1000,anonuid=1000)
My /etc/samba/smb.conf file shows this
Code:
#                                                                         
# Sample configuration file for the Samba suite for Debian GNU/Linux.     
#                                                                         
#                                                                         
# 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 most of which     
# are not shown in this example                                           
#                                                                         
# Some options that are often worth tuning have been included as          
# commented-out examples in this file.                                    
#  - When such options are commented with ";", the proposed setting       
#    differs from the default Samba behaviour                             
#  - When commented with "#", the proposed setting is the default         
#    behaviour of Samba but the option is considered important            
#    enough to be mentioned here                                          
#                                                                         
# NOTE: Whenever you modify this file you should run the command          
# "testparm" to check that you have not made any basic syntactic          
# errors.                                                                 
# A well-established practice is to name the original file                
# "smb.conf.master" and create the "real" config file with                
# testparm -s smb.conf.master >smb.conf                                   
# This minimizes the size of the really used smb.conf file                
# which, according to the Samba Team, impacts performance                 
# However, use this with caution if your smb.conf file contains nested    
# "include" statements. See Debian bug #483187 for a case                 
# where using a master file is not a good idea.                           
#                                                                         

#======================= 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                                 

# 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                                                

# If we receive WINS server info from DHCP, override the options above. 
   include = /etc/samba/dhcp.conf                                       

# 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                           

security = share


#### 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                                                        

# 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@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                                         

########## 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                                              

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

[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.                                  
# The following parameter makes 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

[Documentation]
path=/Data/Documentation
browsable=yes
comment=Documentation Share
writable=yes
public=yes
guest ok=yes

[File Store]
path=/Data2/File_Store
browasable=no
comment="File Store"
writeable=yes
public=yes
guest ok=yes
security=share
guest account=smbuser
Now my problem is if I place a file in one of these shares by a windows machine, it is read-only by a non-windows machine. Same problem if it is placed there by a Linux machine and opened by a Windows machine.

How do I make it be a Free For All read/write permissions for all machines accessing the shared files?
 
Old 12-16-2009, 01:04 AM   #2
xode
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Distribution: Mandrake 9.0; FC4; FC8; SUSE 10.3; SUSE 12.1
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I suggest the following:

(1) Set directory permissions of "/Data/Documentation" and "/Data2/File_Store" to 0777. Owner of both of those directories should be root and only those directories should have their permission set to 0777.

(2) Add the line "create mask = 0666" to your [Documentation] and [File Store] Samba shares that reference those directories.

If there is any connection to the internet from any of these machines, I would recommend that this be only a temporary solution. The more permanent solution in that case would be to see what username(s) the linux machines create their files under, what username(s) the windows machines create their files under, make those username(s) be the same for both sets of machines, and give write permissions only to those username(s).
 
Old 12-16-2009, 06:54 PM   #3
Bob_D
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Registered: May 2008
Location: Auckland NZ
Distribution: Fedora 8
Posts: 10

Rep: Reputation: 0
I may get shot for this, but if you just want a very simple share on a trusted
network behind your firewall what i tend to use on servers is this very simple smb.conf

[global]
workgroup = "your_workgroup"
netbios name = "your_server_name"
security = user

[wiki]
path = /some/path/tofiles
comment = "share name"
valid users = "username"
public = no
writable = no

And mount it with the same user name and password you have created on the Linux host
when you use it. replace the stuff in "" with your values.

oh and don't forget to make the share owned by the user.

chown "username" "share"

Not very secure I know, biggest issue for me is you dont know who last editted the file, but it only takes about 10 seconds to set up..

Last edited by Bob_D; 12-16-2009 at 06:55 PM. Reason: Bad Typing ...
 
Old 12-16-2009, 06:58 PM   #4
worm5252
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Registered: Oct 2004
Location: Atlanta
Distribution: CentOS, RHEL, HP-UX
Posts: 565

Original Poster
Rep: Reputation: 57
Thanks for the Info. I like xode's idea and will research that some more. I will most likely implement it if it works well.
 
  


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