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<?xml version="1.0" encoding='UTF-8'?>
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
"http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd">
<refentry id="pam_lastlog">
<refmeta>
<refentrytitle>pam_lastlog</refentrytitle>
<manvolnum>8</manvolnum>
<refmiscinfo class="sectdesc">Linux-PAM Manual</refmiscinfo>
</refmeta>
<refnamediv id="pam_lastlog-name">
<refname>pam_lastlog</refname>
<refpurpose>PAM module to display date of last login</refpurpose>
</refnamediv>
<refsynopsisdiv>
<cmdsynopsis id="pam_lastlog-cmdsynopsis">
<command>pam_lastlog.so</command>
<arg choice="opt">
debug
</arg>
<arg choice="opt">
silent
</arg>
<arg choice="opt">
never
</arg>
<arg choice="opt">
nodate
</arg>
<arg choice="opt">
nohost
</arg>
<arg choice="opt">
noterm
</arg>
<arg choice="opt">
nowtmp
</arg>
<arg choice="opt">
noupdate
</arg>
<arg choice="opt">
showfailed
</arg>
</cmdsynopsis>
</refsynopsisdiv>
<refsect1 id="pam_lastlog-description">
<title>DESCRIPTION</title>
<para>
pam_lastlog is a PAM module to display a line of information
about the last login of the user. In addition, the module maintains
the <filename>/var/log/lastlog</filename> file.
</para>
<para>
Some applications may perform this function themselves. In such
cases, this module is not necessary.
</para>
</refsect1>
<refsect1 id="pam_lastlog-options">
<title>OPTIONS</title>
<variablelist>
<varlistentry>
<term>
<option>debug</option>
</term>
<listitem>
<para>
Print debug information.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<option>silent</option>
</term>
<listitem>
<para>
Don't inform the user about any previous login,
just update the <filename>/var/log/lastlog</filename> file.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<option>never</option>
</term>
<listitem>
<para>
If the <filename>/var/log/lastlog</filename> file does
not contain any old entries for the user, indicate that
the user has never previously logged in with a welcome
message.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<option>nodate</option>
</term>
<listitem>
<para>
Don't display the date of the last login.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<option>noterm</option>
</term>
<listitem>
<para>
Don't display the terminal name on which the
last login was attempted.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<option>nohost</option>
</term>
<listitem>
<para>
Don't indicate from which host the last login was
attempted.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<option>nowtmp</option>
</term>
<listitem>
<para>
Don't update the wtmp entry.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<option>noupdate</option>
</term>
<listitem>
<para>
Don't update any file.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<option>showfailed</option>
</term>
<listitem>
<para>
Display number of failed login attempts and the date of the
last failed attempt from btmp. The date is not displayed
when <option>nodate</option> is specified.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 id="pam_lastlog-types">
<title>MODULE TYPES PROVIDED</title>
<para>
Only the <option>session</option> module type is provided.
</para>
</refsect1>
<refsect1 id='pam_lastlog-return_values'>
<title>RETURN VALUES</title>
<para>
<variablelist>
<varlistentry>
<term>PAM_SUCCESS</term>
<listitem>
<para>
Everything was successful.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>PAM_SERVICE_ERR</term>
<listitem>
<para>
Internal service module error.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>PAM_USER_UNKNOWN</term>
<listitem>
<para>
User not known.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 id='pam_lastlog-examples'>
<title>EXAMPLES</title>
<para>
Add the following line to <filename>/etc/pam.d/login</filename> to
display the last login time of an user:
</para>
<programlisting>
session required pam_lastlog.so nowtmp
</programlisting>
</refsect1>
<refsect1 id="pam_lastlog-files">
<title>FILES</title>
<variablelist>
<varlistentry>
<term><filename>/var/log/lastlog</filename></term>
<listitem>
<para>Lastlog logging file</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 id='pam_lastlog-see_also'>
<title>SEE ALSO</title>
<para>
<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 id='pam_lastlog-author'>
<title>AUTHOR</title>
<para>
pam_lastlog was written by Andrew G. Morgan <morgan@kernel.org>.
</para>
</refsect1>
</refentry>
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