The software described in this documentation is either in Extended Support or Sustaining Support. See https://www.oracle.com/us/support/library/enterprise-linux-support-policies-069172.pdf for more information.
Oracle recommends that you upgrade the software described by this documentation as soon as possible.
The Pluggable Authentication Modules (PAM) feature is an
authentication mechanism that allows you to configure how
applications use authentication to verify the identity of a user.
The PAM configuration files, which are located in the
/etc/pam.d directory, describe the
authentication procedure for an application. The name of each
configuration file is the same as, or is similar to, the name of
the application for which the module provides authentication. For
example, the configuration files for passwd and
sudo are named passwd and
sudo.