Lastly i was able to change password using windows AltCtrlCanc. smbldap-passwd does not works (i dunno); i use this small php script: http://mauriziomarini.blogspot.com/index.html anyone interested can use it. I am using centos 5.1, samba 3.0.25b. fds 1.1 samba.conf is: ; encrypt passwords = yes ldap passwd sync = No unix password sync = Yes passwd program = /usr/bin/php -f /etc/samba/scripts/chgpwd.php %u passwd chat = "password:" %n\n "changed" passwd chat debug = yes -m