password expiry

Hi,
under SUN Unix, in which file the expiry date of a user password is indicated ?
Many thanks.

The /etc/shadow file contains all password expiry related information. Here is a link to the Solaris 10 shadow man page.

This is what I suggest setting user shadow entries to:

0:3:60:15:90::

The 0 will force the user to change the password. The whole shadow entry would look like:
username:xxxxxxxxxxxx:0:3:60:15:90::