Pluggable Authentication Modules: The Definitive Guide to PAM for Linux SysAdmins and C Developers: A comprehensive and practical guide to PAM for Linux: how modules work and how to implement them
暫譯: 可插拔認證模組：Linux 系統管理員與 C 開發者的權威指南：全面且實用的 PAM 指南：模組如何運作及如何實作

First this book explains how Pluggable Authentication Modules (PAM) simplify and standardize authentication in Linux. It shows in detail how PAM works and how it is configured. Then 11 common modules used across UNIX/Linux distributions are examined and explained, including all their parameters. Installation of third-party modules is discussed, and the development of new modules and PAM-aware applications is outlined. This book is for experienced system administrators and developers working with multiple Linux/UNIX servers or with both UNIX and Windows servers. It assumes a good level of admin knowledge, and that developers are competent in C development on UNIX-based systems.