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Thread: Problems accessing SAMBA shares since upgrade

  1. #1
    Join Date
    Aug 2008
    Beans
    108

    Problems accessing SAMBA shares since upgrade

    I provide support for a small business that uses Windows machines to access files stored on an Ubuntu server which has just been upgraded from 8.04 to 10.04 (32 bit version).

    Before the upgrade the users accessed their share by this batch file:

    Code:
    net use x: \\servername\sharename /user:username
    This would then prompt the user for his or her password which they would enter to allow them access to the share.

    Since upgrading to 10.04, the user gets a "system error 58" stating "The specified server cannot perform the requested operation"

    If the batch file command is changed to:

    Code:
    net use x: \\servername\sharename
    The same error message is given. The only work around I have found is to modify the file to read:

    Code:
    net use x: \\servername\sharename /user:username password
    This is not ideal at all as it makes the password protection useless.

    When I performed the upgrade I left the smb.conf unchanged. The smb.conf file is:

    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
    #
    # 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 commentary 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. 
    #
    
    #======================= 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
    
    # 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
    
    ##Printers##
    load printers = yes
    printing = cups
    printcap name = cups
    
    
    
    
    
    #### 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 = true
    
    
    
    #### 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 = share
    
    # 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
    
    ;   guest account = nobody
       invalid users = root
    
    # 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
    
    # This option controls how nsuccessful 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
    ;   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
    
    ########## 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 = Ubuntu Pritners
       path = /var/spool/samba
       browseable = no
       printable = yes
            guest ok = Yes
            guest only = Yes
    
    # 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 = yes
    # Uncomment to allow remote administration of Windows print drivers.
    # Replace 'ntadmin' with the name of the group your admin users are
    # members of.
    ;   write list = root, @ntadmin
    
    # 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
    
    [Server]
            comment = Server
            path = /media/server/server
            read only = No
            guest ok = Yes
            guest only = Yes
    
    [Mozilla]
            comment = Mozilla
            path = /media/server/mozilla
            read only = No
            guest ok = Yes
            guest only = Yes
    	 browsable = no
    
    [Archive]
            comment = Archive
            path = /media/server/archive
            read only = No
            guest ok = Yes
            guest only = Yes
    	 browsable = no
    
    [Business]
            comment = Business
            path = /media/server/business
            read only = No
            guest ok = no
    	 valid users = users
    	 browsable = no
    
    [Files]
            comment = Files
            path = /media/server/files
            read only = No
            guest ok = no
            valid users = users
    	 browsable = no
    Thank you for your assistance in what I'm sure is a very simple problem to solve.

  2. #2
    Join Date
    Apr 2010
    Beans
    22

    Re: Problems accessing SAMBA shares since upgrade

    You could try this,

    apt-get install gvfs-backends

  3. #3
    Join Date
    Dec 2008
    Beans
    Hidden!
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Problems accessing SAMBA shares since upgrade

    I think this might be an authentication problem (i.e. NTLMv2). See here.

    I would look in the error logs on both systems. You might want to up the syslog entry in the /etc/samba/smb.conf file to syslog = 3.

  4. #4
    Join Date
    Aug 2008
    Beans
    108

    Re: Problems accessing SAMBA shares since upgrade

    Thanks for the replies, it does not appear to be an NTML problem, the work around in the link does not work as one of the machines is running Windows 7 Premium which does not have the Group Policy Strategy.

    Thanks for replying though.

  5. #5
    Join Date
    Dec 2009
    Beans
    6,776

    Re: Problems accessing SAMBA shares since upgrade

    Is there a reason you're using "security = SHARE" instead of "security=user"

  6. #6
    Join Date
    Aug 2008
    Beans
    108

    Re: Problems accessing SAMBA shares since upgrade

    Quote Originally Posted by Morbius1 View Post
    Is there a reason you're using "security = SHARE" instead of "security=user"
    As far as I know it has always been set to that. Would changing that make a difference? Apologies for my ignorance.

  7. #7
    Join Date
    Aug 2008
    Beans
    108

    Re: Problems accessing SAMBA shares since upgrade

    Quote Originally Posted by krodrigue View Post
    You could try this,

    apt-get install gvfs-backends
    I tried that and then restarted samba using the command restart smbd but I still have the same problem.

  8. #8
    Join Date
    Aug 2008
    Beans
    108

    Re: Problems accessing SAMBA shares since upgrade

    I have just re-built the server using Ubuntu 10.04 64 bit version and a new smb.conf file and still have the same problem.

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