pam — Good introductory information on PAM, including the structure and purpose of the PAM configuration files.

Note that this man page discusses both /etc/pam.conf and individual configuration files in the /etc/pam.d/ directory. By default, Red Hat Enterprise Linux uses the individual configuration files in the /etc/pam.d/ directory, ignoring /etc/pam.conf even if it exists.

pam_console — Describes the purpose of the pam_console.so module. It also describes the appropriate syntax for an entry within a PAM configuration file.

console.apps — Describes the format and options available in the /etc/security/console.apps configuration file, which defines which applications are accessible by the console user assigned by PAM.

console.perms — Describes the format and options available in the /etc/security/console.perms configuration file, which specifies the console user permissions assigned by PAM.

pam_timestamp — Describes the pam_timestamp.so module.