[Samba] add machine script problem with Fedora core 5

[James Lott]

I am having some trouble with Samba 3.0.21b-2 as a PDC running on Fedora 
core 5. In particular, on-the-fly creation of machine accounts using the 
"add machine script" parameter does not seem to work. In smb.conf, I 
have the following line:

add machine script = /usr/sbin/useradd -d /dev/null -g 100 -s /bin/false 
-M %u

When I try to join a new WinXP machine to the domain, it fails to create 
the machine account. The error log for the client host reports:

[2006/03/31 15:19:31, 0] rpc_server/srv_samr_nt.c:_samr_create_user(2404)
   _samr_create_user: Running the command `/usr/sbin/useradd -d 
/dev/null -g 100 -s /bin/false -M embera$' gave 82

According to the man pages for 'useradd', there is no error code 82. If 
I try to manually run the useradd command myself, it works fine, and the 
machine is subsequently able to join the domain.

Furthermore, no matter what I specify for the 'add machine script' 
parameter, it ALWAYS fails with "gave 82". For example, I tried:

add machine script = /usr/sbin/addMachine.sh

addMachine.sh:
echo "this is a test" > /usr/sbin/test.txt

This script never gets called (test.txt is not created), and the error 
log STILL reports "gave 82":

[2006/03/31 15:19:31, 0] rpc_server/srv_samr_nt.c:_samr_create_user(2404)
   _samr_create_user: Running the command `/usr/bin/addMachine.sh' gave 82

Any help is greatly appreciated. Below is my smb.conf for reference. Thanks,

James


---- smb.conf ----

[global]

# workgroup = NT-Domain-Name or Workgroup-Name

netbios name = kuna
workgroup = PANAMA
domain logons = yes
domain master = yes
security = user
add machine script = /usr/sbin/useradd -d /dev/null -g 100 -s /bin/false 
-M %u
domain admin users = root

# server string is the equivalent of the NT Description field
         server string = Samba Server

# 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. 127.

# if you want to automatically load your printer list rather
# than setting them up individually then you'll need this
         printcap name = /etc/printcap
         load printers = yes

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

# This option tells cups that the data has already been rasterized
         cups options = raw

# 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 = /var/log/samba/%m.log
# all log information in one file
#   log file = /var/log/samba/log.smbd

# 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 = user
# Use password server option only with security = server
;   password server = <NT-Server-Name>

# Password Level allows matching of _n_ characters of the password for
# all combinations of upper and lower case.
;  password level = 8
;  username level = 8

# 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
smb passwd file = /etc/samba/smbpasswd

# The following are needed to allow password changing from Windows to
# update the Linux system password also.
# NOTE: Use these with 'encrypt passwords' and 'smb passwd file' above.
# NOTE2: You do NOT need these to allow workstations to change only
#        the encrypted SMB passwords. They allow the Unix password
#        to be kept in sync with the SMB password.
;  unix password sync = Yes
;  passwd program = /usr/bin/passwd %u
;  passwd chat = *New*UNIX*password* %n\n *ReType*new*UNIX*password* 
%n\n *passw
d:*all*authentication*tokens*updated*successfully*

# Unix users can map to different SMB User names
;  username map = /etc/samba/smbusers

# 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 = /etc/samba/smb.conf.%m

# Most people will find that this option gives better performance.
# See speed.txt and the manual pages for details
         socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192

# Configure Samba to use multiple interfaces
# If you have multiple network interfaces then you must list them
# here. See the man page for details.
;   interfaces = 192.168.12.2/24 192.168.13.2/24

# Configure remote browse list synchronisation here
#  request announcement to, or browse list sync from:
#       a specific host or from / to a whole subnet (see below)
;   remote browse sync = 192.168.3.25 192.168.5.255
# Cause this host to announce itself to local subnets here
;   remote announce = 192.168.1.255 192.168.2.44

# 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
;   local master = no

# OS Level determines the precedence of this server in master browser
# elections. The default value should be reasonable
;   os level = 33

# 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

# Enable this if you want Samba to be a domain logon server for
# Windows95 workstations.
;   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

# All NetBIOS names must be resolved to IP Addresses
# 'Name Resolve Order' allows the named resolution mechanism to be specified
# the default order is "host lmhosts wins bcast". "host" means use the unix
# system gethostbyname() function call that will use either /etc/hosts OR
# DNS or NIS depending on the settings of /etc/host.config, 
/etc/nsswitch.conf
# and the /etc/resolv.conf file. "host" therefore is system configuration
# dependant. This parameter is most often of use to prevent DNS lookups
# in order to resolve NetBIOS names to IP Addresses. Use with care!
# The example below excludes use of name resolution for machines that 
are NOT
# on the local network segment
# - OR - are not deliberately to be known via lmhosts or via WINS.
; name resolve order = wins lmhosts bcast

# 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 = w.x.y.z

# 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. The built-in default for versions 1.9.17 is yes,
# this has been changed in version 1.9.18 to no.
         dns proxy = no
         username map = /etc/samba/smbusers
;       encrypt passwords = yes
;       guest ok = no
;       guest account = nobody

# Case Preservation can be handy - system default is _no_
# NOTE: These can be set on a per share basis
;  preserve case = no
;  short preserve case = no
# Default case is normally upper case for all DOS files
;  default case = lower
# Be very careful with case sensitivity - it can break things!
;  case sensitive = no

#============================ Share Definitions 
==============================
[homes]
         comment = Home Directories
         browseable = no
         writeable = yes

# Un-comment the following and create the netlogon directory for Domain 
Logons
[netlogon]
   comment = Network Logon Service
   path = /home/netlogon
   guest ok = yes
   writable = no
   share modes = no


# Un-comment the following to provide a specific roving profile share
# the default is to use the user's home directory
[Profiles]
    path = /home/profiles
    browseable = no
    guest ok = yes


# NOTE: If you have a BSD-style print system there is no need to
# specifically define each individual printer
[printers]
         comment = All Printers
         path = /var/spool/samba
         browseable = no
# Set public = yes to allow user 'guest account' to print
;       guest ok = no
;       writeable = no
         printable = yes