unix_chkpwd.8.xml

<?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="unix_chkpwd">

  <refmeta>
    <refentrytitle>unix_chkpwd</refentrytitle>
    <manvolnum>8</manvolnum>
    <refmiscinfo class="sectdesc">Linux-PAM Manual</refmiscinfo>
  </refmeta>

  <refnamediv id="unix_chkpwd-name">
    <refname>unix_chkpwd</refname>
    <refpurpose>Helper binary that verifies the password of the current user</refpurpose>
  </refnamediv>

  <refsynopsisdiv>
    <cmdsynopsis id="unix_chkpwd-cmdsynopsis">
      <command>unix_chkpwd</command>
      <arg choice="opt">
        ...
      </arg>
    </cmdsynopsis>
  </refsynopsisdiv>

  <refsect1 id="unix_chkpwd-description">

    <title>DESCRIPTION</title>

    <para>
      <emphasis>unix_chkpwd</emphasis> is a helper program for the
      <emphasis>pam_unix</emphasis> module that verifies the
      password of the current user. It also checks password and account
      expiration dates in <emphasis>shadow</emphasis>. It is not intended to
      be run directly from the command line and logs a security violation if
      done so.
    </para>

    <para>
      It is typically installed setuid root or setgid shadow.
    </para>

    <para>
      The interface of the helper - command line options, and input/output
      data format are internal to the <emphasis>pam_unix</emphasis>
      module and it should not be called directly from applications.
    </para>
  </refsect1>

  <refsect1 id='unix_chkpwd-see_also'>
    <title>SEE ALSO</title>
    <para>
      <citerefentry>
	<refentrytitle>pam_unix</refentrytitle><manvolnum>8</manvolnum>
      </citerefentry>
    </para>
  </refsect1>

  <refsect1 id='unix_chkpwd-author'>
    <title>AUTHOR</title>
      <para>
        Written by Andrew Morgan and other various people.
      </para>
  </refsect1>

</refentry>