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'\" t
.\" Title: pam_timestamp_check
.\" Author: [see the "AUTHOR" section]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\" Date: 09/03/2021
.\" Manual: Linux-PAM Manual
.\" Source: Linux-PAM Manual
.\" Language: English
.\"
.TH "PAM_TIMESTAMP_CHECK" "8" "09/03/2021" "Linux-PAM Manual" "Linux\-PAM Manual"
.\" -----------------------------------------------------------------
.\" * Define some portability stuff
.\" -----------------------------------------------------------------
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.\" http://bugs.debian.org/507673
.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.ie \n(.g .ds Aq \(aq
.el .ds Aq '
.\" -----------------------------------------------------------------
.\" * set default formatting
.\" -----------------------------------------------------------------
.\" disable hyphenation
.nh
.\" disable justification (adjust text to left margin only)
.ad l
.\" -----------------------------------------------------------------
.\" * MAIN CONTENT STARTS HERE *
.\" -----------------------------------------------------------------
.SH "NAME"
pam_timestamp_check \- Check to see if the default timestamp is valid
.SH "SYNOPSIS"
.HP \w'\fBpam_timestamp_check\fR\ 'u
\fBpam_timestamp_check\fR [\-k] [\-d] [\fItarget_user\fR]
.SH "DESCRIPTION"
.PP
With no arguments
\fBpam_timestamp_check\fR
will check to see if the default timestamp is valid, or optionally remove it\&.
.SH "OPTIONS"
.PP
\fB\-k\fR
.RS 4
Instead of checking the validity of a timestamp, remove it\&. This is analogous to sudo\*(Aqs
\fI\-k\fR
option\&.
.RE
.PP
\fB\-d\fR
.RS 4
Instead of returning validity using an exit status, loop indefinitely, polling regularly and printing the status on standard output\&.
.RE
.PP
\fB\fItarget_user\fR\fR
.RS 4
By default
\fBpam_timestamp_check\fR
checks or removes timestamps generated by
\fIpam_timestamp\fR
when the user authenticates as herself\&. When the user authenticates as a different user, the name of the timestamp file changes to accommodate this\&.
\fItarget_user\fR
allows one to specify this user name\&.
.RE
.SH "RETURN VALUES"
.PP
0
.RS 4
The timestamp is valid\&.
.RE
.PP
2
.RS 4
The binary is not setuid root\&.
.RE
.PP
3
.RS 4
Invalid invocation\&.
.RE
.PP
4
.RS 4
User is unknown\&.
.RE
.PP
5
.RS 4
Permissions error\&.
.RE
.PP
6
.RS 4
Invalid controlling tty\&.
.RE
.PP
7
.RS 4
Timestamp is not valid\&.
.RE
.SH "NOTES"
.PP
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\&.
.SH "EXAMPLES"
.sp
.if n \{\
.RS 4
.\}
.nf
auth sufficient pam_timestamp\&.so verbose
auth required pam_unix\&.so
session required pam_unix\&.so
session optional pam_timestamp\&.so
.fi
.if n \{\
.RE
.\}
.SH "FILES"
.PP
/var/run/sudo/\&.\&.\&.
.RS 4
timestamp files and directories
.RE
.SH "SEE ALSO"
.PP
\fBpam_timestamp_check\fR(8),
\fBpam.conf\fR(5),
\fBpam.d\fR(5),
\fBpam\fR(8)
.SH "AUTHOR"
.PP
pam_timestamp was written by Nalin Dahyabhai\&.
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