Adding a PAM module

You can add a PAM module to enable multiple authentication mechanisms.

1. Place the 32-bit version of the module in the /usr/lib/security directory and the 64-bit version of the module in /usr/lib/security/64 directory.
2. Set file ownership to root and permissions to 555.
   The PAM library does not load any module not owned by the root user.
3. Update the /etc/pam.conf configuration file to include the module in entries for the desired service names.
4. Test the affected services to ensure their functionality.
   Do not log off the system until a login test has been performed.