Linux Pluggable Authentication Module Overview

Anonymous Reader writes “Authentication is the process in which a program determines whether a user is actually the person who he claims to be. It is used in any kind of a system that provides different services to people depending upon their membership. When you log in to your favorite mailbox, access ATM, or use the services of Net Banking; what you are actually doing is obtaining service from the service provider after proving your credibility using your credentials (i.e. generally your user name and password).”