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<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>6.14. pam_lastlog - display date of last login</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot"><link rel="home" href="Linux-PAM_SAG.html" title="The Linux-PAM System Administrators' Guide"><link rel="up" href="sag-module-reference.html" title="Chapter 6. A reference guide for available modules"><link rel="prev" href="sag-pam_keyinit.html" title="6.13. pam_keyinit - display the keyinit file"><link rel="next" href="sag-pam_limits.html" title="6.15. pam_limits - limit resources"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">6.14. pam_lastlog - display date of last login</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="sag-pam_keyinit.html">Prev</a> </td><th width="60%" align="center">Chapter 6. A reference guide for available modules</th><td width="20%" align="right"> <a accesskey="n" href="sag-pam_limits.html">Next</a></td></tr></table><hr></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="sag-pam_lastlog"></a>6.14. pam_lastlog - display date of last login</h2></div></div></div><div class="cmdsynopsis"><p><code class="command">pam_lastlog.so</code>  [
	debug
      ] [
        silent
      ] [
        never
      ] [
        nodate
      ] [
        nohost
      ] [
        noterm
      ] [
        nowtmp
      ] [
        noupdate
      ] [
        showfailed
      ] [
        inactive=&lt;days&gt;
      ] [
        unlimited
      ]</p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="sag-pam_lastlog-description"></a>6.14.1. DESCRIPTION</h3></div></div></div><p>
      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 <code class="filename">/var/log/lastlog</code> file.
    </p><p>
      Some applications may perform this function themselves. In such
      cases, this module is not necessary.
    </p><p>
      If the module is called in the auth or account phase, the accounts that
      were not used recently enough will be disallowed to log in. The
      check is not performed for the root account so the root is never
      locked out.
    </p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="sag-pam_lastlog-options"></a>6.14.2. OPTIONS</h3></div></div></div><div class="variablelist"><dl class="variablelist"><dt><span class="term">
          <code class="option">debug</code>
        </span></dt><dd><p>
            Print debug information.
          </p></dd><dt><span class="term">
          <code class="option">silent</code>
        </span></dt><dd><p>
            Don't inform the user about any previous login,
            just update the <code class="filename">/var/log/lastlog</code> file.
            This option does not affect display of bad login attempts.
          </p></dd><dt><span class="term">
          <code class="option">never</code>
        </span></dt><dd><p>
            If the <code class="filename">/var/log/lastlog</code> file does
            not contain any old entries for the user, indicate that
            the user has never previously logged in with a welcome
            message.
          </p></dd><dt><span class="term">
          <code class="option">nodate</code>
        </span></dt><dd><p>
            Don't display the date of the last login.
          </p></dd><dt><span class="term">
          <code class="option">noterm</code>
        </span></dt><dd><p>
            Don't display the terminal name on which the
            last login was attempted.
          </p></dd><dt><span class="term">
          <code class="option">nohost</code>
        </span></dt><dd><p>
            Don't indicate from which host the last login was
            attempted.
          </p></dd><dt><span class="term">
          <code class="option">nowtmp</code>
        </span></dt><dd><p>
            Don't update the wtmp entry.
          </p></dd><dt><span class="term">
          <code class="option">noupdate</code>
        </span></dt><dd><p>
            Don't update any file.
          </p></dd><dt><span class="term">
          <code class="option">showfailed</code>
        </span></dt><dd><p>
            Display number of failed login attempts and the date of the
            last failed attempt from btmp. The date is not displayed
            when <code class="option">nodate</code> is specified.
          </p></dd><dt><span class="term">
          <code class="option">inactive=&lt;days&gt;</code>
        </span></dt><dd><p>
            This option is specific for the auth or account phase. It
            specifies the number of days after the last login of the user
            when the user will be locked out by the module. The default
            value is 90.
          </p></dd><dt><span class="term">
          <code class="option">unlimited</code>
        </span></dt><dd><p>
	    If the <span class="emphasis"><em>fsize</em></span> limit is set, this option can be
	    used to override it, preventing failures on systems with large UID
	    values that lead lastlog to become a huge sparse file.
          </p></dd></dl></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="sag-pam_lastlog-types"></a>6.14.3. MODULE TYPES PROVIDED</h3></div></div></div><p>
      The <code class="option">auth</code> and <code class="option">account</code> module type
      allows to lock out users which did not login recently enough.
      The <code class="option">session</code> module type is provided for displaying
      the information about the last login and/or updating the lastlog and
      wtmp files.
    </p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="sag-pam_lastlog-return_values"></a>6.14.4. RETURN VALUES</h3></div></div></div><p>
      </p><div class="variablelist"><dl class="variablelist"><dt><span class="term">PAM_SUCCESS</span></dt><dd><p>
              Everything was successful.
            </p></dd><dt><span class="term">PAM_SERVICE_ERR</span></dt><dd><p>
	      Internal service module error.
            </p></dd><dt><span class="term">PAM_USER_UNKNOWN</span></dt><dd><p>
	      User not known.
            </p></dd><dt><span class="term">PAM_AUTH_ERR</span></dt><dd><p>
	      User locked out in the auth or account phase due to
	      inactivity.
            </p></dd><dt><span class="term">PAM_IGNORE</span></dt><dd><p>
	      There was an error during reading the lastlog file
	      in the auth or account phase and thus inactivity
	      of the user cannot be determined.
            </p></dd></dl></div><p>
    </p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="sag-pam_lastlog-examples"></a>6.14.5. EXAMPLES</h3></div></div></div><p>
      Add the following line to <code class="filename">/etc/pam.d/login</code> to
      display the last login time of an user:
    </p><pre class="programlisting">
    session  required  pam_lastlog.so nowtmp
      </pre><p>
     To reject the user if he did not login during the previous 50 days
     the following line can be used:
    </p><pre class="programlisting">
    auth  required  pam_lastlog.so inactive=50
      </pre></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="sag-pam_lastlog-author"></a>6.14.6. AUTHOR</h3></div></div></div><p>
        pam_lastlog was written by Andrew G. Morgan &lt;morgan@kernel.org&gt;.
      </p><p>
        Inactive account lock out added by Tomáš Mráz &lt;tm@t8m.info&gt;.
      </p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="sag-pam_keyinit.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="sag-module-reference.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="sag-pam_limits.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">6.13. pam_keyinit - display the keyinit file </td><td width="20%" align="center"><a accesskey="h" href="Linux-PAM_SAG.html">Home</a></td><td width="40%" align="right" valign="top"> 6.15. pam_limits - limit resources</td></tr></table></div></body></html>

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