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			234 lines
		
	
	
		
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<?xml version="1.0" encoding="ISO-8859-1"?>
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<title>ctlogconfig - Certificate Transparency log configuration tool - Apache HTTP Server Version 2.5</title>
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<link href="../style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" />
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<body id="manual-page"><div id="page-header">
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<p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/quickreference.html">Directives</a> | <a href="http://wiki.apache.org/httpd/FAQ">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p>
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<p class="apache">Apache HTTP Server Version 2.5</p>
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<img alt="" src="../images/feather.png" /></div>
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<div class="up"><a href="./"><img title="<-" alt="<-" src="../images/left.gif" /></a></div>
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<div id="path">
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<a href="http://www.apache.org/">Apache</a> > <a href="http://httpd.apache.org/">HTTP Server</a> > <a href="http://httpd.apache.org/docs/">Documentation</a> > <a href="../">Version 2.5</a> > <a href="./">Programs</a></div><div id="page-content"><div id="preamble"><h1>ctlogconfig - Certificate Transparency log configuration tool</h1>
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<div class="toplang">
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<p><span>Available Languages: </span><a href="../en/programs/ctlogconfig.html" title="English"> en </a> |
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<a href="../fr/programs/ctlogconfig.html" hreflang="fr" rel="alternate" title="Fran<61>ais"> fr </a></p>
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</div>
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    <p><code>ctlogconfig</code> is a tool for creating and maintaining a log
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    configuration database, for use with <code class="module"><a href="../mod/mod_ssl_ct.html">mod_ssl_ct</a></code>.</p>
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    <p>Refer first to <a href="../mod/mod_ssl_ct.html#logconf">Log
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    configuration</a> in the <code class="module"><a href="../mod/mod_ssl_ct.html">mod_ssl_ct</a></code> documentation.</p>
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    <p>Refer to the <a href="#examples">examples below</a> for typical use.</p>
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</div>
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<div id="quickview"><ul id="toc"><li><img alt="" src="../images/down.gif" /> <a href="#synopsis">Synopsis</a></li>
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<li><img alt="" src="../images/down.gif" /> <a href="#subcommands">Sub-commands</a></li>
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<li><img alt="" src="../images/down.gif" /> <a href="#examples">Examples</a></li>
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</ul><h3>See also</h3><ul class="seealso"><li><code class="module"><a href="../mod/mod_ssl_ct.html">mod_ssl_ct</a></code></li><li><a href="#comments_section">Comments</a></li></ul></div>
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<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
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<div class="section">
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<h2><a name="synopsis" id="synopsis">Synopsis</a></h2>
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  <p><code>
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    <strong>ctlogconfig</strong> <em>/path/to/db</em> <strong>dump</strong>
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  </code></p>
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  <p><code>
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    <strong>ctlogconfig</strong> <em>/path/to/db</em> <strong>configure-public-key</strong>
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    [ <em>log-id</em>|<em>record-id</em> ]
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    <em>/path/to/public-key.pem</em>
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  </code></p>
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  <p><code>
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    <strong>ctlogconfig</strong> <em>/path/to/db</em> <strong>configure-url</strong>
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    [ <em>log-id</em>|<em>record-id</em> ]
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    <em>log-URL</em>
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  </code></p>
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  <p><code>
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    <strong>ctlogconfig</strong> <em>/path/to/db</em> <strong>valid-time-range</strong>
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    <em>log-id</em>|<em>record-id</em>
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    <em>min-timestamp</em> <em>max-timestamp</em>
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  </code></p>
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  <p><code>
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    <strong>ctlogconfig</strong> <em>/path/to/db</em> <strong>trust</strong>
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    <em>log-id</em>|<em>record-id</em>
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  </code></p>
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  <p><code>
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    <strong>ctlogconfig</strong> <em>/path/to/db</em> <strong>distrust</strong>
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    <em>log-id</em>|<em>record-id</em>
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  </code></p>
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  <p><code>
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    <strong>ctlogconfig</strong> <em>/path/to/db</em> <strong>forget</strong>
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    <em>log-id</em>|<em>record-id</em>
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  </code></p>
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  <dl>
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    <dt><em>log-id</em></dt>
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    <dd>This is the id of the log, which is the SHA-256 hash of the log's public key,
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    provided in hexadecimal format.  This string is 64 characters in length.</dd>
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    <dt><em>record-id</em></dt>
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    <dd>This is the record number in the database, as displayed by the <strong>dump</strong>
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    sub-command, prefixed with <strong>#</strong>.  As an example, <strong>#4</strong>
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    references the fourth record in the database.  (Use shell escaping as necessary.)</dd>
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    <dt><em>/path/to/public-key.pem</em></dt>
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    <dd>This is a file containing the log's public key in PEM format.  The public
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    key is not stored in the database.  Instead, a reference to the file is stored.
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    Thus, the file cannot be removed until the public key in the database is removed
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    or changed.</dd>
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    <dt><em>min-timestamp</em>, <em>max-timestamp</em></dt>
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    <dd>A timestamp is a time as expressed in the number of milliseconds since the
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    epoch, ignoring leap seconds.  This is the form of time used in Signed Certificate
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    Timestamps.  This must be provided as a decimal number.
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    <br />
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    Specify <strong><code>-</code></strong> for one of the timestamps if it is unknown.
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    For example, when configuring the minimum valid timestamp for a log which remains
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    valid, specify <strong><code>-</code></strong> for <em>max-timestamp</em>.
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    <br />
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    SCTs received from this log by the proxy are invalid if the timestamp
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    is older than <em>min-timestamp</em> or newer than <em>max-timestamp</em>.</dd>
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  </dl>
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</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
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<div class="section">
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<h2><a name="subcommands" id="subcommands">Sub-commands</a></h2>
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  <dl>
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    <dt>dump</dt>
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    <dd>Display configuration database contents.  The record id shown in
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    the output of this sub-command can be used to identify the affected
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    record in other sub-commands.</dd>
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    <dt>configure-public-key</dt>
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    <dd>Add a log's public key to the database or set the public key for an
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    existing entry.  The log's public key is needed to validate the signature
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    of SCTs received by a proxy from a backend server.  (The database will
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    be created if it does not yet exist.)</dd>
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    <dt>configure-url</dt>
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    <dd>Add a log's URL to the database or set the URL for an existing entry.
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    The log's URL is used when submitting server certificates to logs in
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    order to obtain SCTs to send to clients.  (The database will
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    be created if it does not yet exist.)</dd>
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    <dt>valid-time-range</dt>
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    <dd>Set the minimum valid time and/or the maximum valid time for a log.
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    SCTs from the log with timestamps outside of the valid range will not be
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    accepted.  Use <code>-</code> for a time that is not being configured.
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    (The database will be created if it does not yet exist.)</dd>
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    <dt>trust</dt>
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    <dd>Mark a log as trusted, which is the default setting.  This sub-command
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    is used to reverse a <em>distrust</em> setting.  (The database will
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    be created if it does not yet exist.)</dd>
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    <dt>distrust</dt>
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    <dd>Mark a log as distrusted.  (The database will be created if it does
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    not yet exist.)</dd>
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    <dt>forget</dt>
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    <dd>Remove information about a log from the database.</dd>
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  </dl>
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</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
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<div class="section">
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<h2><a name="examples" id="examples">Examples</a></h2>
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  <p>Consider an Apache httpd instance which serves as a TLS server and a proxy.
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  The TLS server needs to obtain SCTs from a couple of known logs in order to
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  pass those to clients, and the proxy needs to be able to validate the signature
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  of SCTs received from backend servers.</p>
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  <p>First we'll configure the URLs for logs where server certificates are logged:</p>
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  <div class="example"><p><code>
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    $ ctlogconfig /path/to/conf/log-config configure-url http://log1.example.com/<br />
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    $ ctlogconfig /path/to/conf/log-config configure-url http://log2.example.com/<br />
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    $ ctlogconfig /path/to/conf/log-config dump<br />
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    Log entry:<br />
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      Record 1<br />
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      Log id         : (not configured)<br />
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      Public key file: (not configured)<br />
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      URL            : http://log1.example.com/<br />
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      Time range     : -INF to +INF<br />
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<br />
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    Log entry:<br />
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      Record 2<br />
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      Log id         : (not configured)<br />
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      Public key file: (not configured)<br />
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      URL            : http://log2.example.com/<br />
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      Time range     : -INF to +INF<br />
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  </code></p></div>
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  <p>Next we'll set the public key of a log where the certificate of our only
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  backend server is published.  In this case it is the log with URL
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  http://log2.example.com/ which has already been configured.</p>
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  <div class="example"><p><code>
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    $ ctlogconfig /path/to/conf/log-config configure-public-key \#2 /path/to/conf/log2-pub.pem<br />
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    $ ctlogconfig /path/to/conf/log-config dump<br />
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    Log entry:<br />
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      Record 1<br />
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      Log id         : (not configured)<br />
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      Public key file: (not configured)<br />
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      URL            : http://log1.example.com/<br />
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      Time range     : -INF to +INF<br />
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<br />
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    Log entry:<br />
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      Record 2<br />
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      Log id         : (not configured)<br />
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      Public key file: /path/to/conf/log2-pub.pem<br />
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      URL            : http://log2.example.com/<br />
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      Time range     : -INF to +INF<br />
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  </code></p></div>
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</div></div>
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<p><span>Available Languages: </span><a href="../en/programs/ctlogconfig.html" title="English"> en </a> |
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