samba-mirror/docs-xml/smbdotconf/security/pampasswordchange.xml

<samba:parameter name="pam password change"
                 context="G"
				 type="boolean"
		 xmlns:samba="http://www.samba.org/samba/DTD/samba-doc">
<description>
    <para>With the addition of better PAM support in Samba 2.2, 
    this parameter, it is possible to use PAM's password change control 
    flag for Samba.  If enabled, then PAM will be used for password
    changes when requested by an SMB client instead of the program listed in 
    <smbconfoption name="passwd program"/>. 
    It should be possible to enable this without changing your 
    <smbconfoption name="passwd chat"/> parameter for most setups.</para>
</description>

<value type="default">no</value>
</samba:parameter>