pam_timestamp(8)

1PAM_TIMESTAMP(8)               Linux-PAM Manual               PAM_TIMESTAMP(8)
2
3
4

NAME

6       pam_timestamp - Authenticate using cached successful authentication
7       attempts
8

SYNOPSIS

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

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.
16
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.
21

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.
26
27       verbose
28           Attempt to inform the user when access is granted.
29
30       debug
31           Turns on debugging messages sent to syslog(3).
32

MODULE TYPES PROVIDED

34       The auth and session module types are provided.
35

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.
40
41       PAM_SUCCESS
42           Everything was successful.
43
44       PAM_SESSION_ERR
45           Timestamp file could not be created or updated.
46

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.
51

EXAMPLES

53           auth sufficient pam_timestamp.so verbose
54           auth required   pam_unix.so
55
56           session required pam_unix.so
57           session optional pam_timestamp.so
58
59

FILES

61       /var/run/sudo/...
62           timestamp files and directories
63

AUTHOR

68       pam_tally was written by Nalin Dahyabhai.
69
70
71
72Linux-PAM Manual                  06/16/2009                  PAM_TIMESTAMP(8)