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<refentry xmlns="http://docbook.org/ns/docbook" version="5.0" xml:id="pam_timestamp_check">
<refmeta>
<refentrytitle>pam_timestamp_check</refentrytitle>
<manvolnum>8</manvolnum>
<refmiscinfo class="source">Linux-PAM</refmiscinfo>
<refmiscinfo class="manual">Linux-PAM Manual</refmiscinfo>
</refmeta>
<refnamediv xml:id="pam_timestamp_check-name">
<refname>pam_timestamp_check</refname>
<refpurpose>Check to see if the default timestamp is valid</refpurpose>
</refnamediv>
<refsynopsisdiv>
<cmdsynopsis xml:id="pam_timestamp_check-cmdsynopsis" sepchar=" ">
<command>pam_timestamp_check</command>
<arg choice="opt" rep="norepeat">
-k
</arg>
<arg choice="opt" rep="norepeat">
-d
</arg>
<arg choice="opt" rep="norepeat">
<replaceable>target_user</replaceable>
</arg>
</cmdsynopsis>
</refsynopsisdiv>
<refsect1 xml:id="pam_timestamp_check-description">
<title>DESCRIPTION</title>
<para>
With no arguments <command>pam_timestamp_check</command> will check to
see if the default timestamp is valid, or optionally remove it.
</para>
</refsect1>
<refsect1 xml:id="pam_timestamp_check-options">
<title>OPTIONS</title>
<variablelist>
<varlistentry>
<term>
-k
</term>
<listitem>
<para>
Instead of checking the validity of a timestamp, remove it.
This is analogous to sudo's <emphasis>-k</emphasis> option.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
-d
</term>
<listitem>
<para>
Instead of returning validity using an exit status,
loop indefinitely, polling regularly and printing the status on
standard output.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
target_user
</term>
<listitem>
<para>
By default <command>pam_timestamp_check</command> checks or removes
timestamps generated by <emphasis>pam_timestamp</emphasis> when
users authenticate as themselves. When the user authenticates as a
different user, the name of the timestamp file changes to
accommodate this. <replaceable>target_user</replaceable> allows
one to specify this user name.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 xml:id="pam_timestamp_check-return_values">
<title>RETURN VALUES</title>
<variablelist>
<varlistentry>
<term>0</term>
<listitem>
<para>
The timestamp is valid.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>2</term>
<listitem>
<para>
The binary is not setuid root.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>3</term>
<listitem>
<para>
Invalid invocation.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>4</term>
<listitem>
<para>
User is unknown.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>5</term>
<listitem>
<para>
Permissions error.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>6</term>
<listitem>
<para>
Invalid controlling tty.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>7</term>
<listitem>
<para>
Timestamp is not valid.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 xml:id="pam_timestamp-notes">
<title>NOTES</title>
<para>
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.
</para>
</refsect1>
<refsect1 xml:id="pam_timestamp-examples">
<title>EXAMPLES</title>
<programlisting>
auth sufficient pam_timestamp.so verbose
auth required pam_unix.so
session required pam_unix.so
session optional pam_timestamp.so
</programlisting>
</refsect1>
<refsect1 xml:id="pam_timestamp-files">
<title>FILES</title>
<variablelist>
<varlistentry>
<term>/var/run/sudo/...</term>
<listitem>
<para>timestamp files and directories</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 xml:id="pam_timestamp-see_also">
<title>SEE ALSO</title>
<para>
<citerefentry>
<refentrytitle>pam_timestamp_check</refentrytitle><manvolnum>8</manvolnum>
</citerefentry>,
<citerefentry>
<refentrytitle>pam.conf</refentrytitle><manvolnum>5</manvolnum>
</citerefentry>,
<citerefentry>
<refentrytitle>pam.d</refentrytitle><manvolnum>5</manvolnum>
</citerefentry>,
<citerefentry>
<refentrytitle>pam</refentrytitle><manvolnum>8</manvolnum>
</citerefentry>
</para>
</refsect1>
<refsect1 xml:id="pam_timestamp-author">
<title>AUTHOR</title>
<para>
pam_timestamp was written by Nalin Dahyabhai.
</para>
</refsect1>
</refentry>
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