Results of testing as requested -

[r...@localhost ~]# smbldap-passwd kennyz
Changing UNIX and samba passwords for kennyz
New password: <enter pass>
Retype new password: <enter pass>

No errors returned.  User is able to login with new password.

Commented out "unix password sync = yes". Still same result..."You do not have permission to change your password."

Thank you for your help!  We'll keep trying...

Chris

On 08/18/2010 09:48 AM, Gaiseric Vandal wrote:
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
[email protected]

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