1PAM_TIMESTAMP(8)               Linux-PAM Manual               PAM_TIMESTAMP(8)
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NAME

6       pam_timestamp - Authenticate using cached successful authentication
7       attempts
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SYNOPSIS

10       pam_timestamp.so [timestampdir=directory] [timestamp_timeout=number]
11                        [verbose] [debug]
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DESCRIPTION

14       In a nutshell, pam_timestamp caches successful authentication attempts,
15       and allows you to use a recent successful attempt as the basis for
16       authentication. This is similar mechanism which is used in sudo.
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18       When an application opens a session using pam_timestamp, a timestamp
19       file is created in the timestampdir directory for the user. When an
20       application attempts to authenticate the user, a pam_timestamp will
21       treat a sufficiently recent timestamp file as grounds for succeeding.
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OPTIONS

24       timestampdir=directory
25           Specify an alternate directory where pam_timestamp creates
26           timestamp files.
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28       timestamp_timeout=number
29           How long should pam_timestamp treat timestamp as valid after their
30           last modification date (in seconds). Default is 300 seconds.
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32       verbose
33           Attempt to inform the user when access is granted.
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35       debug
36           Turns on debugging messages sent to syslog(3).
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MODULE TYPES PROVIDED

39       The auth and session module types are provided.
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RETURN VALUES

42       PAM_AUTH_ERR
43           The module was not able to retrieve the user name or no valid
44           timestamp file was found.
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46       PAM_SUCCESS
47           Everything was successful.
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49       PAM_SESSION_ERR
50           Timestamp file could not be created or updated.
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NOTES

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

58           auth sufficient pam_timestamp.so verbose
59           auth required   pam_unix.so
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61           session required pam_unix.so
62           session optional pam_timestamp.so
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FILES

66       /var/run/pam_timestamp/...
67           timestamp files and directories
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SEE ALSO

70       pam_timestamp_check(8), pam.conf(5), pam.d(5), pam(8)
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AUTHOR

73       pam_timestamp was written by Nalin Dahyabhai.
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77Linux-PAM Manual                  05/18/2017                  PAM_TIMESTAMP(8)