shadow/man/faillog.8.xml

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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='faillog.8'>
<!-- $Id: faillog.8.xml,v 1.9 2005/06/16 15:50:30 kloczek Exp $ -->
<refmeta>
<refentrytitle>faillog</refentrytitle>
<manvolnum>8</manvolnum>
</refmeta>
<refnamediv id='name'>
<refname>faillog</refname>
<refpurpose>display faillog records or set login failure limits</refpurpose>
</refnamediv>
<refsynopsisdiv id='synopsis'>
<cmdsynopsis>
<command>faillog</command>
<arg choice='opt'>
<replaceable>options</replaceable>
</arg>
</cmdsynopsis>
</refsynopsisdiv>
<refsect1 id='description'>
<title>DESCRIPTION</title>
<para><command>faillog</command> formats the contents of the failure log
from <filename>/var/log/faillog</filename> database. It also can be
used for maintains failure counters and limits. Run
<command>faillog</command> without arguments display only list of user
faillog records who have ever had a login failure.
</para>
</refsect1>
<refsect1 id='options'>
<title>OPTIONS</title>
<para>
The options which apply to the <command>faillog</command> command
are:
</para>
<variablelist remap='IP'>
<varlistentry>
<term><option>-a</option>, <option>--all</option></term>
<listitem>
<para>Display faillog records for all users.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-h</option>, <option>--help</option></term>
<listitem>
<para>Display help message and exit.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<option>-l</option>, <option>--lock-time</option>
<replaceable>SEC</replaceable>
</term>
<listitem>
<para>
Lock accout to <emphasis remap='I'>SEC</emphasis>
seconds after failed login.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<option>-m</option>, <option>--maximum</option>
<replaceable>MAX</replaceable>
</term>
<listitem>
<para>Set maiximum number of login failures after the account is
disabled to <emphasis remap='I'>MAX</emphasis>. Selecting
<emphasis remap='I'>MAX</emphasis> value of 0 has the effect of
not placing a limit on the number of failed logins. The maximum
failure count should always be 0 for <emphasis
remap='B'>root</emphasis> to prevent a denial of services attack
against the system.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-r</option>, <option>--reset</option></term>
<listitem>
<para>Reset the counters of login failures or one recor if used
with -u <emphasis remap='I'>LOGIN</emphasis> option. Write
access to <filename>/var/log/faillog</filename> is required for
this option.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-t</option>, <option>--time</option>
<replaceable>DAYS</replaceable>
</term>
<listitem>
<para>
Display faillog records more recent than <emphasis
remap='I'>DAYS</emphasis>. The <option>-t</option> flag overrides
the use of <option>-u</option>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<option>-u</option>, <option>--user</option>
<replaceable>LOGIN</replaceable>
</term>
<listitem>
<para>Display faillog record or maintains failure counters and
limits (if used with <option>-l</option>, <option>-m</option> or
<option>-r</option> options) only for user with <emphasis
remap='I'>LOGIN</emphasis>.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 id='caveats'>
<title>CAVEATS</title>
<para><command>faillog</command> only prints out users with no successful
login since the last failure. To print out a user who has had a
successful login since their last failure, you must explicitly request
the user with the <option>-u</option> flag, or print out all users
with the <option>-a</option> flag.
</para>
</refsect1>
<refsect1 id='files'>
<title>FILES</title>
<variablelist>
<varlistentry>
<term><filename>/var/log/faillog</filename></term>
<listitem>failure logging file</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 id='see_also'>
<title>SEE ALSO</title>
<para><citerefentry>
<refentrytitle>login</refentrytitle><manvolnum>1</manvolnum>
</citerefentry>,
<citerefentry>
<refentrytitle>faillog</refentrytitle><manvolnum>5</manvolnum>
</citerefentry>
</para>
</refsect1>
<refsect1 id='author'>
<title>AUTHOR</title>
<para>Julianne Frances Haugh (jockgrrl@ix.netcom.com)</para>
</refsect1>
</refentry>