Excellent find Daniel! I made the following change and I'm not able to change passwords for my NT4 machines...

lanman auth = yes
(was previously set to lanman auth = no (default) )

Thank you all very much for your help!

Chris

On 08/19/2010 03:49 AM, Daniel Müller wrote:
Check this parameters in your global section

  With testparm -v

lanman auth = ?
ntlm auth = ?
client NTLMv2 = ?
client lanman auth = ?

-----------------------------------------------
EDV Daniel Müller

Leitung EDV
Tropenklinik Paul-Lechler-Krankenhaus
Paul-Lechler-Str. 24
72076 Tübingen

Tel.: 07071/206-463, Fax: 07071/206-499
eMail: muel...@tropenklinik.de
Internet: www.tropenklinik.de
-----------------------------------------------

-----Ursprüngliche Nachricht-----
Von: Christopher Springer [mailto:csprin...@brcrp.com]
Gesendet: Mittwoch, 18. August 2010 22:12
An: muel...@tropenklinik.de
Cc: gaiseric.van...@gmail.com; samba@lists.samba.org
Betreff: Re: AW: [Samba] Error: You do not have permission to change your
password

   Well, I have a partially working configuration now...that is to say
that it DOES work for WinXP and later but it does NOT work for WinNT4
systems (2k not tested).  I must've made a mistake in testing because
now it seems that the XP systems are able to change passwords just
fine.  For the life of me I cannot get rid of the NTLM error messages
when trying to change passwords on a WinNT4 system.  I'm also having
trouble figuring out what items in the Samba LDAP schema are still in
use and which ones should be controlled by other applications
(smbldap-usermod, pdbedit, etc).  A good reference on deprecated LDAP
entries would be greatly appreciated!  I realize I still need to change
the LDAP directory to use a separate user for replication, etc but I'm
trying to take small steps here :)

working smb.conf -

[global]
log level = 1
workgroup = CORPDOM
netbios name = CORPPDC
passdb backend = ldapsam:ldap://127.0.0.1
username map = /etc/samba/smbusers
printcap name = cups
add user script = /usr/sbin/smbldap-useradd -m '%u'
delete user script = /usr/sbin/smbldap-userdel '%u'
add group script = /usr/sbin/smbldap-groupadd -p '%g'
delete group script = /usr/sbin/smbldap-groupdel '%g'
add user to group script = /usr/sbin/smbldap-groupmod -m '%u' '%g'
delete user from group script = /usr/sbin/smbldap-groupmod -x '%u' '%g'
set primary group script = /usr/sbin/smbldap-usermod -g '%g' '%u'
add machine script = /usr/sbin/smbldap-useradd -w '%u'
logon script = scripts/%U.bat
logon path =
logon drive =
security = user
domain logons = Yes
os level = 35
preferred master = Yes
domain master = Yes
wins support = Yes
smb ports = 139
ldap suffix = dc=brcrp,dc=com
ldap machine suffix = ou=Computers
ldap user suffix = ou=People
ldap group suffix = ou=Group
ldap idmap suffix = ou=Idmap
ldap admin dn = cn=Manager,dc=brcrp,dc=com
ldap ssl = no
ldap passwd sync = yes
printing = cups

[netlogon]
comment = Network Logon Service
path = /pub
guest ok = Yes
browseable = No


working slapd.conf

#
# See slapd.conf(5) for details on configuration options.
# This file should NOT be world readable.
#

include        /etc/openldap/schema/corba.schema
include        /etc/openldap/schema/core.schema
include        /etc/openldap/schema/cosine.schema
include        /etc/openldap/schema/duaconf.schema
include        /etc/openldap/schema/dyngroup.schema
include        /etc/openldap/schema/inetorgperson.schema
include        /etc/openldap/schema/java.schema
include        /etc/openldap/schema/misc.schema
include        /etc/openldap/schema/nis.schema
include        /etc/openldap/schema/openldap.schema
include        /etc/openldap/schema/ppolicy.schema
include        /etc/openldap/schema/collective.schema
include        /etc/openldap/schema/samba.schema

# Allow LDAPv2 client connections.  This is NOT the default.
allow bind_v2

# Do not enable referrals until AFTER you have a working directory
# service AND an understanding of referrals.
#referral    ldap://root.openldap.org

pidfile        /var/run/openldap/slapd.pid
argsfile    /var/run/openldap/slapd.args

# Load dynamic backend modules:
# modulepath    /usr/lib/openldap # or /usr/lib64/openldap
# moduleload accesslog.la
# moduleload auditlog.la
# moduleload back_sql.la
# moduleload denyop.la
# moduleload dyngroup.la
# moduleload dynlist.la
# moduleload lastmod.la
# moduleload pcache.la
# moduleload ppolicy.la
# moduleload refint.la
# moduleload retcode.la
# moduleload rwm.la
moduleload syncprov.la
# moduleload translucent.la
# moduleload unique.la
# moduleload valsort.la

# The next three lines allow use of TLS for encrypting connections using a
# dummy test certificate which you can generate by changing to
# /etc/pki/tls/certs, running "make slapd.pem", and fixing permissions on
# slapd.pem so that the ldap user or group can read it.  Your client
software
# may balk at self-signed certificates, however.
# TLSCACertificateFile /etc/pki/tls/certs/ca-bundle.crt
# TLSCertificateFile /etc/pki/tls/certs/slapd.pem
# TLSCertificateKeyFile /etc/pki/tls/certs/slapd.pem

# Sample security restrictions
#    Require integrity protection (prevent hijacking)
#    Require 112-bit (3DES or better) encryption for updates
#    Require 63-bit encryption for simple bind
# security ssf=1 update_ssf=112 simple_bind=64

# Sample access control policy:
#    Root DSE: allow anyone to read it
#    Subschema (sub)entry DSE: allow anyone to read it
#    Other DSEs:
#        Allow self write access
#        Allow authenticated users read access
#        Allow anonymous users to authenticate
#    Directives needed to implement policy:
# access to dn.base="" by * read
# access to dn.base="cn=Subschema" by * read
# access to *
#    by self write
#    by users read
#    by anonymous auth
#
# if no access controls are present, the default policy
# allows anyone and everyone to read anything but restricts
# updates to rootdn.  (e.g., "access to * by * read")
#
# rootdn can always read and write EVERYTHING!

#######################################################################
# ldbm and/or bdb database definitions
#######################################################################

database    bdb
suffix        "dc=brcrp,dc=com"
checkpoint    1024 15
rootdn        "cn=Manager,dc=brcrp,dc=com"
# Cleartext passwords, especially for the rootdn, should
# be avoided.  See slappasswd(8) and slapd.conf(5) for details.
# Use of strong authentication encouraged.
rootpw        *omitted*
#rootpw        {SSHA}5v9AquZvm/9fhFMcetO072dGd2BX8C5Q

# The database directory MUST exist prior to running slapd AND
# should only be accessible by the slapd and slap tools.
# Mode 700 recommended.
directory    /var/lib/ldap

# Indices to maintain for this database
index objectClass                       eq,pres
index ou,cn,mail,surname,givenname      eq,pres,sub
index uidNumber,gidNumber,loginShell    eq,pres
index uid,memberUid                     eq,pres,sub
index nisMapName,nisMapEntry            eq,pres,sub

# Replicas of this database
#replogfile /var/lib/ldap/openldap-master-replog
#replica host=ldap-1.example.com:389 starttls=critical
#     bindmethod=sasl saslmech=GSSAPI
#     authcId=host/ldap-master.example....@example.com
overlay syncprov
syncprov-checkpoint 100 10
syncprov-sessionlog 100

# enable monitoring
# database monitor

# allow onlu rootdn to read the monitor
#access to *
#        by dn.exact="cn=Manager,dc=brcrp,dc=com" write
#        by * none
access to
attrs=userPassword,shadowLastChange,shadowMax,sambaNTPassword,sambaLMPasswor
d,sambaPwdLastSet,sambaPwdMustChange,sambaAcctFlags
      by dn="cn=Manager,dc=brcrp,dc=com" write
      by self write
      by anonymous auth
      by * none
access to *
      by * read
#access to *
#    by * write

I have this server also acting as the WINS server for our multi-site
environment over VPN.  It seems to work pretty well.  Setup is PDC w/BDC
(both LDAP) at corporate with remote BDC (replicated LDAP) and DHCP
server with netbios-name-server option.

Again, thanks all for your help!

Chris

On 08/18/2010 10:47 AM, Daniel Müller wrote:
You only changed unix-password:


tuepdc:~ # smbldap-passwd --help
(c) Jerome Tournier - IDEALX 2004 (http://www.idealx.com)- Licensed under
the GPL
Usage: /usr/local/sbin/smbldap-passwd [options] [username]
    -h, -?, --help show this help message
    -s             update only samba password
    -u             update only UNIX password

Just use smbldap-passwd USER



-----------------------------------------------
EDV Daniel Müller

Leitung EDV
Tropenklinik Paul-Lechler-Krankenhaus
Paul-Lechler-Str. 24
72076 Tübingen

Tel.: 07071/206-463, Fax: 07071/206-499
eMail: muel...@tropenklinik.de
Internet: www.tropenklinik.de
-----------------------------------------------

-----Ursprüngliche Nachricht-----
Von: Christopher Springer [mailto:csprin...@brcrp.com]
Gesendet: Mittwoch, 18. August 2010 16:28
An: muel...@tropenklinik.de
Cc: gaiseric.van...@gmail.com; samba@lists.samba.org
Betreff: Re: [Samba] Error: You do not have permission to change your
password

    I did some additional testing...

It turns out that I was able to change the password successfully using...

smbldap-passwd kennyz

But then I tried changing with the -u option as follows...

smbldap-passwd -u kennyz

This did not return an error but it also apparently did not change the
user's password because I can't login as the user now.  I do not know
how to interpret this behaviour but I'm hoping it can give you guys a
clue as to what is truly the problem here.

Thanks.
--
Chris

On 08/18/2010 10:00 AM, Daniel Müller wrote:
You need
ldap passwd sync = yes
no  unix password sync = yes

Then try to change it on your linux box.
-----------------------------------------------
EDV Daniel Müller

Leitung EDV
Tropenklinik Paul-Lechler-Krankenhaus
Paul-Lechler-Str. 24
72076 Tübingen

Tel.: 07071/206-463, Fax: 07071/206-499
eMail: muel...@tropenklinik.de
Internet: www.tropenklinik.de
-----------------------------------------------

-----Ursprüngliche Nachricht-----
Von: samba-boun...@lists.samba.org [mailto:samba-boun...@lists.samba.org]
Im
Auftrag von Gaiseric Vandal
Gesendet: Mittwoch, 18. August 2010 15:48
An: samba@lists.samba.org
Betreff: Re: [Samba] Error: You do not have permission to change your
password

I am pretty sure that the password command and script is run as root,
not as the user changing the password.    What happens if you run the
password commands on the samba server?   I don't have smbldap tools on
my system (Solaris, so not provided by the Sun distro) so I had to rely
on the OS password tools.   By default, root is not going to have
sufficient privledges to change ldap passwords.

If you don't enable password sync, are you able to change your Windows
password?


On 08/18/2010 08:49 AM, Christopher Springer wrote:
    I'm using Samba v3.5.4-62 on Fedora 13 PDC Using LDAP passdb backend
and do the following...

1.  Login as user on Windows system using domain user name and
password - Login successful
2.  Press Ctrl-Alt-Del
3.  Press Change Password
4.  Enter old and new password as prompted
5.  Receive response "You do not have permission to change your
password."

I receive the following repeated twice in "/var/log/samba/log.smbd"...

[2010/08/17 16:13:53.884482,  0]
libsmb/ntlmssp_sign.c:222(ntlmssp_check_packet)
     NTLMSSP NTLM1 packet check failed due to invalid signature!
[2010/08/17 16:13:53.884592,  0]
rpc_server/srv_pipe_hnd.c:398(process_request_pdu)
     process_request_pdu: failed to do auth processing.
[2010/08/17 16:13:53.884668,  0]
rpc_server/srv_pipe_hnd.c:399(process_request_pdu)
     process_request_pdu: error was NT_STATUS_ACCESS_DENIED.

This was generated from a WindowsNT4 system.  The issue can also be
duplicated from Windows XP clients.

My smb.conf file on this system (PDC):

[global]
log level = 1
workgroup = CORPDOM
netbios name = CORPPDC
passdb backend = ldapsam:ldap://127.0.0.1
enable privileges = yes
#encrypt passwords = yes
username map = /etc/samba/smbusers
printcap name = cups
add user script = /usr/sbin/smbldap-useradd -m '%u'
delete user script = /usr/sbin/smbldap-userdel '%u'
add group script = /usr/sbin/smbldap-groupadd -p '%g'
delete group script = /usr/sbin/smbldap-groupdel '%g'
add user to group script = /usr/sbin/smbldap-groupmod -m '%u' '%g'
delete user from group script = /usr/sbin/smbldap-groupmod -x '%u' '%g'
set primary group script = /usr/sbin/smbldap-usermod -g '%g' '%u'
add machine script = /usr/sbin/smbldap-useradd -w '%u'
logon script = scripts/%U.bat
logon path =
logon drive =
security = user
domain logons = Yes
os level = 35
preferred master = Yes
domain master = Yes
wins support = Yes
smb ports = 139
#remote announce = 10.30.0.254/CORPDOM 10.20.255.255/CORPDOM
10.20.0.255/CORPDOM
#remote browse sync = 10.20.255.255 10.30.255.255
#remote announce = 10.30.255.255
#remote browse sync = 10.30.255.255
ldap suffix = dc=brcrp,dc=com
ldap machine suffix = ou=Computers
ldap user suffix = ou=People
ldap group suffix = ou=Group
ldap idmap suffix = ou=Idmap
ldap admin dn = cn=Manager,dc=brcrp,dc=com
ldap ssl = no
#ldap passwd sync = yes
unix password sync = yes
passwd program = /usr/sbin/smbldap-passwd %u
passwd chat = *New*password:*%n\n*Retype*new*password:*%n\n*
#client lanman auth = yes
#unix password sync = yes
#passwd program = /usr/sbin/smbldap-passwd -u %u
idmap backend = ldap:ldap://127.0.0.1
idmap uid = 15000-20000
idmap gid = 15000-20000
printing = cups

[netlogon]
comment = Network Logon Service
path = /pub
guest ok = Yes
browseable = No

--
Christopher Springer
IS/IT Systems Administrator
BRC Rubber&  Plastics, Inc
260-693-2171 x389
csprin...@brcrp.com

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