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| PAM_TIMESTAMP_CHECK(8) | Linux-PAM Manual | PAM_TIMESTAMP_CHECK(8) |
NAME¶
pam_timestamp_check - Check to see if the default timestamp is valid
SYNOPSIS¶
pam_timestamp_check [-k] [-d] [target_user]
DESCRIPTION¶
With no arguments pam_timestamp_check will check to see if the default timestamp is valid, or optionally remove it.
OPTIONS¶
-k
Instead of checking the validity of a timestamp, remove
it. This is analogous to sudo's -k option.
-d
Instead of returning validity using an exit status, loop
indefinitely, polling regularly and printing the status on standard
output.
target_user
By default pam_timestamp_check checks or removes
timestamps generated by pam_timestamp when users authenticate as
themselves. When the user authenticates as a different user, the name of the
timestamp file changes to accommodate this. target_user allows one to
specify this user name.
RETURN VALUES¶
0
The timestamp is valid.
2
The binary is not setuid root.
3
Invalid invocation.
4
User is unknown.
5
Permissions error.
6
Invalid controlling tty.
7
Timestamp is not valid.
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
FILES¶
/var/run/sudo/...
timestamp files and directories
SEE ALSO¶
AUTHOR¶
pam_timestamp was written by Nalin Dahyabhai.
| 09/15/2025 | Linux-PAM |