Datasheet

“main” (Installation and Administration) — 2004/6/25 — 13:29 — page 403 — #429
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20
PAM — Pluggable Authentication Modules
PAM — Pluggable
Authentication Modules
Linux uses PAM (Pluggable Authentication Modules) in the authentication
process as a layer that mediates between user and application. PAM mod-
ules are available on a system-wide basis, so they can be requested by any
application. This chapter describes how the modular authentication mecha-
nism works and how it is configured.
20.1 Structure of a PAM Configuration File . . . . . . . 404
20.2 The PAM Configuration of sshd . . . . . . . . . . . 406
20.3 Configuration of PAM Modules . . . . . . . . . . . 407
20.4 For More Information . . . . . . . . . . . . . . . . . 410