====== 5.3 Configure PAM ======
==== List of content ====
{{indexmenu>.:3#3 |context}}
==== Description ====
PAM (Pluggable Authentication Modules) is a service that implements modular authentication modules on UNIX systems. PAM is implemented as a set of shared objects that are loaded and executed when a program needs to authenticate a user. Files for PAM are typically located in the ''/etc/pam.d'' directory. PAM must be carefully configured to secure system authentication. While this section covers some of PAM, please consult other PAM resources to fully understand the configuration capabilities.