Password change synchronization

["punith punith" <4onlyhere@gmail.com>]

Hi everybody..
Warm greetings to you all.

I am doing authentication using OpenLDAP and I think it is best place to ask my problem.

What I require is, I have to run a shell script when the user changes password.
ie Suppose that a user is changed his OpenLDAP pasword, I want to trigger a shell script which updates oracle login password.
Is it possible with Openldap?

If so, how and where to keep the shell script?

All queris and reply are welcome.