[Samba] Error: You do not have permission to change your password
cspringer at brcrp.com
Wed Aug 18 09:41:25 MDT 2010
I've done some additional testing via ldapmodify and found that I can
login as the LDAP user and the user has permission to change his/her own
password hash. Does Samba bind to the LDAP directory as the user that
is changing the password or as the user as defined by "ldap admin dn"?
Any other thoughts on this issue?
Thanks all for your help!
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: mueller at tropenklinik.de
> Internet: www.tropenklinik.de
> -----Ursprüngliche Nachricht-----
> Von: Christopher Springer [mailto:cspringer at brcrp.com]
> Gesendet: Mittwoch, 18. August 2010 16:28
> An: mueller at tropenklinik.de
> Cc: gaiseric.vandal at gmail.com; samba at lists.samba.org
> Betreff: Re: [Samba] Error: You do not have permission to change your
> 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.
> 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: mueller at tropenklinik.de
>> Internet: www.tropenklinik.de
>> -----Ursprüngliche Nachricht-----
>> Von: samba-bounces at lists.samba.org [mailto:samba-bounces at lists.samba.org]
>> Auftrag von Gaiseric Vandal
>> Gesendet: Mittwoch, 18. August 2010 15:48
>> An: samba at lists.samba.org
>> Betreff: Re: [Samba] Error: You do not have permission to change your
>> 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
>> 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
>>> I receive the following repeated twice in "/var/log/samba/log.smbd"...
>>> [2010/08/17 16:13:53.884482, 0]
>>> NTLMSSP NTLM1 packet check failed due to invalid signature!
>>> [2010/08/17 16:13:53.884592, 0]
>>> process_request_pdu: failed to do auth processing.
>>> [2010/08/17 16:13:53.884668, 0]
>>> 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):
>>> 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
>>> #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
>>> comment = Network Logon Service
>>> path = /pub
>>> guest ok = Yes
>>> browseable = No
IS/IT Systems Administrator
BRC Rubber& Plastics, Inc
cspringer at brcrp.com
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