I tend to think you're best solution would be one that didn't require that external program to be running and maintaining login status. Doing some quick research, I believe using utmp should be able to give you an accurate count of who's logged in and therefore be able to give you a count of the remaining sessions for your particular user. Take a look at utmp(5). -- Jon Miller <div>On 11/20/06, Fabian Stäber <<a href="mailto:fabian@fstab.de">fabian@fstab.de</a>> wrote:<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Hi, I'm writing a small PAM module that can mount my truecrypt-encrypted home directory using my login password. This should become a small module with just a few lines of code. Mounting the directory works fine, using pam_sm_authenticate(). Now I'm wondering when to unmount the home directory. The problem is that the user might be logged in multiple times, so when the user logs out, the module must check if there is still another open session. I had a look at pam_mount, and it seems to use an external program pmvarrun to keep track of the login count in /var/run/pam_mount. Is there an easier way to determine the last logout? May be calling who, or something like this? I would appreciate any ideas. Fabian. _______________________________________________ Pam-list mailing list <a href="mailto:Pam-list@redhat.com">Pam-list@redhat.com</a> <a href="https://www.redhat.com/mailman/listinfo/pam-list"> https://www.redhat.com/mailman/listinfo/pam-list</a> </blockquote></div> -- Later, Jon