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<h1 class="settitle" align="center">ntpsweep User&rsquo;s Manual</h1>





<a name="Top"></a>
<div class="header">
<p>
Previous: <a href="dir.html#Top" accesskey="p" rel="prev">(dir)</a>, Up: <a href="dir.html#Top" accesskey="u" rel="up">(dir)</a> &nbsp; </p>
</div>
<h1 class="node-heading">Top</h1>

<p>This document describes the use of the NTP Project&rsquo;s <code>ntpsweep</code> program.
</p>
<p>This document applies to version 4.2.8p15 of <code>ntpsweep</code>.
</p>
<a name="SEC_Overview"></a>
<h2 class="shortcontents-heading">Short Table of Contents</h2>

<div class="shortcontents">
<li><a name="stoc-Invoking-ntpsweep" href="#toc-Invoking-ntpsweep">1 Invoking ntpsweep</a></li>

</div>


<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">&bull; ntpsweep Description:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Description
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#ntpsweep-Invocation" accesskey="2">ntpsweep Invocation</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Invoking ntpsweep
</td></tr>
</table>

<hr>
<a name="ntpsweep-Invocation"></a>
<div class="header">
<p>
Up: <a href="#Top" accesskey="u" rel="up">Top</a> &nbsp; </p>
</div>
<a name="Invoking-ntpsweep"></a>
<h3 class="section">1 Invoking ntpsweep</h3>
<a name="index-ntpsweep"></a>
<a name="index-Print-various-informations-about-given-ntp-servers"></a>

<p><code>ntpsweep</code>
prints per host the NTP stratum level, the clock offset in seconds, the daemon
version, the operating system and the processor. Optionally recursing through
all peers.
</p>
<p>This section was generated by <strong>AutoGen</strong>,
using the <code>agtexi-cmd</code> template and the option descriptions for the <code>ntpsweep</code> program.
</p>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">&bull; <a href="#ntpsweep-usage" accesskey="1">ntpsweep usage</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">ntpsweep help/usage (<samp>--help</samp>)
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#ntpsweep-host_002dlist" accesskey="2">ntpsweep host-list</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">host-list option (-l)
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#ntpsweep-peers" accesskey="3">ntpsweep peers</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">peers option (-p)
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#ntpsweep-maxlevel" accesskey="4">ntpsweep maxlevel</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">maxlevel option (-m)
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#ntpsweep-strip" accesskey="5">ntpsweep strip</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">strip option (-s)
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#ntpsweep-host" accesskey="6">ntpsweep host</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">host option (-h)
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#ntpsweep-exit-status" accesskey="7">ntpsweep exit status</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">exit status
</td></tr>
</table>

<hr>
<a name="ntpsweep-usage"></a>
<div class="header">
<p>
Next: <a href="#ntpsweep-host_002dlist" accesskey="n" rel="next">ntpsweep host-list</a>, Up: <a href="#ntpsweep-Invocation" accesskey="u" rel="up">ntpsweep Invocation</a> &nbsp; </p>
</div>
<a name="ntpsweep-help_002fusage-_0028_002d_002dhelp_0029"></a>
<h4 class="subsection">1.1 ntpsweep help/usage (<samp>--help</samp>)</h4>
<a name="index-ntpsweep-help"></a>

<p>This is the automatically generated usage text for ntpsweep.
</p>
<p>The text printed is the same whether selected with the <code>help</code> option
(<samp>--help</samp>) or the <code>more-help</code> option (<samp>--more-help</samp>).  <code>more-help</code> will print
the usage text by passing it through a pager program.
<code>more-help</code> is disabled on platforms without a working
<code>fork(2)</code> function.  The <code>PAGER</code> environment variable is
used to select the program, defaulting to <samp>more</samp>.  Both will exit
with a status code of 0.
</p>
<div class="example">
<pre class="example">ntpsweep - Print various informations about given ntp servers - Ver. 4.2.8p15
USAGE: ntpsweep [ -&lt;flag&gt; [&lt;val&gt;] | --&lt;name&gt;[{=| }&lt;val&gt;] ]... [hostfile]

    -l, --host-list=str          Host to execute actions on
                                   - may appear multiple times
    -p, --peers                  Recursively list all peers a host synchronizes to
    -m, --maxlevel=num           Traverse peers up to this level (4 is a reasonable number)
    -s, --strip=str              Strip this string from hostnames
    -?, --help                   Display usage information and exit
        --more-help              Pass the extended usage text through a pager

Options are specified by doubled hyphens and their name or by a single
hyphen and the flag character.
</pre></div>

<hr>
<a name="ntpsweep-host_002dlist"></a>
<div class="header">
<p>
Next: <a href="#ntpsweep-peers" accesskey="n" rel="next">ntpsweep peers</a>, Previous: <a href="#ntpsweep-usage" accesskey="p" rel="prev">ntpsweep usage</a>, Up: <a href="#ntpsweep-Invocation" accesskey="u" rel="up">ntpsweep Invocation</a> &nbsp; </p>
</div>
<a name="host_002dlist-option-_0028_002dl_0029"></a>
<h4 class="subsection">1.2 host-list option (-l)</h4>
<a name="index-ntpsweep_002dhost_002dlist"></a>

<p>This is the &ldquo;host to execute actions on&rdquo; option.
This option takes a string argument.
</p>
<p>This option has some usage constraints.  It:
</p><ul>
<li> may appear an unlimited number of times.
</li></ul>

<p>Use this option to specify the host on which this script operates.
            May appear multiple times.
</p><hr>
<a name="ntpsweep-peers"></a>
<div class="header">
<p>
Next: <a href="#ntpsweep-maxlevel" accesskey="n" rel="next">ntpsweep maxlevel</a>, Previous: <a href="#ntpsweep-host_002dlist" accesskey="p" rel="prev">ntpsweep host-list</a>, Up: <a href="#ntpsweep-Invocation" accesskey="u" rel="up">ntpsweep Invocation</a> &nbsp; </p>
</div>
<a name="peers-option-_0028_002dp_0029"></a>
<h4 class="subsection">1.3 peers option (-p)</h4>
<a name="index-ntpsweep_002dpeers"></a>

<p>This is the &ldquo;recursively list all peers a host synchronizes to&rdquo; option.
This option has no &lsquo;<samp>doc</samp>&rsquo; documentation.
</p><hr>
<a name="ntpsweep-maxlevel"></a>
<div class="header">
<p>
Next: <a href="#ntpsweep-strip" accesskey="n" rel="next">ntpsweep strip</a>, Previous: <a href="#ntpsweep-peers" accesskey="p" rel="prev">ntpsweep peers</a>, Up: <a href="#ntpsweep-Invocation" accesskey="u" rel="up">ntpsweep Invocation</a> &nbsp; </p>
</div>
<a name="maxlevel-option-_0028_002dm_0029"></a>
<h4 class="subsection">1.4 maxlevel option (-m)</h4>
<a name="index-ntpsweep_002dmaxlevel"></a>

<p>This is the &ldquo;traverse peers up to this level (4 is a reasonable number)&rdquo; option.
This option takes a number argument.
This option has no &lsquo;<samp>doc</samp>&rsquo; documentation.
</p><hr>
<a name="ntpsweep-strip"></a>
<div class="header">
<p>
Next: <a href="#ntpsweep-host" accesskey="n" rel="next">ntpsweep host</a>, Previous: <a href="#ntpsweep-maxlevel" accesskey="p" rel="prev">ntpsweep maxlevel</a>, Up: <a href="#ntpsweep-Invocation" accesskey="u" rel="up">ntpsweep Invocation</a> &nbsp; </p>
</div>
<a name="strip-option-_0028_002ds_0029"></a>
<h4 class="subsection">1.5 strip option (-s)</h4>
<a name="index-ntpsweep_002dstrip"></a>

<p>This is the &ldquo;strip this string from hostnames&rdquo; option.
This option takes a string argument.
This option has no &lsquo;<samp>doc</samp>&rsquo; documentation.
</p><hr>
<a name="ntpsweep-host"></a>
<div class="header">
<p>
Next: <a href="#ntpsweep-exit-status" accesskey="n" rel="next">ntpsweep exit status</a>, Previous: <a href="#ntpsweep-strip" accesskey="p" rel="prev">ntpsweep strip</a>, Up: <a href="#ntpsweep-Invocation" accesskey="u" rel="up">ntpsweep Invocation</a> &nbsp; </p>
</div>
<a name="host-option-_0028_002dh_0029"></a>
<h4 class="subsection">1.6 host option (-h)</h4>
<a name="index-ntpsweep_002dhost"></a>

<p>This is the &ldquo;specify a single host&rdquo; option.
This option takes a string argument.
This option has no &lsquo;<samp>doc</samp>&rsquo; documentation.
</p>
<p><strong>NOTE</strong><strong>: THIS OPTION IS DEPRECATED</strong>
</p><hr>
<a name="ntpsweep-exit-status"></a>
<div class="header">
<p>
Previous: <a href="#ntpsweep-host" accesskey="p" rel="prev">ntpsweep host</a>, Up: <a href="#ntpsweep-Invocation" accesskey="u" rel="up">ntpsweep Invocation</a> &nbsp; </p>
</div>
<a name="ntpsweep-exit-status-1"></a>
<h4 class="subsection">1.7 ntpsweep exit status</h4>

<p>One of the following exit values will be returned:
</p><dl compact="compact">
<dt>&lsquo;<samp>0 (EXIT_SUCCESS)</samp>&rsquo;</dt>
<dd><p>Successful program execution.
</p></dd>
<dt>&lsquo;<samp>1 (EXIT_FAILURE)</samp>&rsquo;</dt>
<dd><p>The operation failed or the command syntax was not valid.
</p></dd>
</dl>
<hr>



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