pam_timestamp(8)

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 [timestamp_timeout=number] [verbose] [debug]
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DESCRIPTION

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

23       timestamp_timeout=number
24           How long should pam_timestamp treat timestamp as valid after their
25           last modification date (in seconds). Default is 300 seconds.
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27       verbose
28           Attempt to inform the user when access is granted.
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30       debug
31           Turns on debugging messages sent to syslog(3).
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MODULE TYPES PROVIDED

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

37       PAM_AUTH_ERR
38           The module was not able to retrieve the user name or no valid
39           timestamp file was found.
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41       PAM_SUCCESS
42           Everything was successful.
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44       PAM_SESSION_ERR
45           Timestamp file could not be created or updated.
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NOTES

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

53           auth sufficient pam_timestamp.so verbose
54           auth required   pam_unix.so
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56           session required pam_unix.so
57           session optional pam_timestamp.so
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FILES

61       /var/run/sudo/...
62           timestamp files and directories
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AUTHOR

68       pam_timestamp was written by Nalin Dahyabhai.
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72Linux-PAM Manual                  09/19/2013                  PAM_TIMESTAMP(8)