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pam_timestamp — Authenticate using cached successful authentication attempts

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DESCRIPTION

In a nutshell, pam_timestamp caches successful authentication attempts, and
allows you to use a recent successful attempt as the basis for authentication.
This is similar mechanism which is used in sudo.

When an application opens a session using pam_timestamp, a timestamp file is
created in the timestampdir directory for the user. When an application
attempts to authenticate the user, a pam_timestamp will treat a sufficiently
recent timestamp file as grounds for succeeding.

OPTIONS

timestamp_timeout=number

How long should pam_timestamp treat timestamp as valid after their last
    modification date (in seconds). Default is 300 seconds.

verbose

Attempt to inform the user when access is granted.

debug

Turns on debugging messages sent to syslog(3).

NOTES

Users can get confused when they are not always asked for passwords when
running a given program. Some users reflexively begin typing information before
noticing that it is not being asked for.

EXAMPLES

auth sufficient pam_timestamp.so verbose
auth required   pam_unix.so

session required pam_unix.so
session optional pam_timestamp.so

AUTHOR

pam_timestamp was written by Nalin Dahyabhai.

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