[CentOS] LDAP - Shadow options

dear All,

I'm trying to set Shadow options in Ldap with the help of phpLDAPadmin.

This is *what I know :

* */Shadowmax : /maximum nr of days a pw can be valid * /ShadowLastchange : /contains the last change of the shadow file * Shadowwarning : nr of days before expiration to warn user.

*What I'm trying *to do is have the users 's passwork expire, that works ok. But how can I have them get a warning message? setting Shadowwarning doesn't seem to be doing it.

Do I have to set Shadowexpire as well for this?

*Also, *how can I have users change the password at first logon? * *I cannot configure the LDAP files themselves, I only have access via phpLDAPadmin.

Thanks for any advise.

greetings, James