2.4.x/docs/manual/mod/mod_dumpio.xml

<?xml version="1.0"?>
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<modulesynopsis metafile="mod_dumpio.xml.meta">

<name>mod_dumpio</name>
<description>Dumps all I/O to error log as desired.</description>
<status>Extension</status>
<sourcefile>mod_dumpio.c</sourcefile>
<identifier>dumpio_module</identifier>

<summary>
    <p><code>mod_dumpio</code> allows for the logging of
    all input received by Apache and/or all output sent by
    Apache to be logged (dumped) to the error.log file.
    </p>

    <p>The data logging is done right after SSL decoding (for
    input) and right before SSL encoding (for output). As can
    be expected, this can produce extreme volumes of data,
    and should only be used when debugging problems.</p>
</summary>

<section id="enable">
    <title>Enabling dumpio Support</title>

    <p>To enable the module, it should be compiled and loaded
    in to your running Apache configuration. Logging can then
    be enabled or disabled separately for input and output via
    the below directives.  Additionally, <module>mod_dumpio</module>
    needs to be configured to <directive
    module="core">LogLevel</directive> <code>trace7</code>:
    </p>
    <highlight language="config">
      LogLevel dumpio:trace7
    </highlight>
</section>

<directivesynopsis>

<name>DumpIOInput</name>
<description>Dump all input data to the error log</description>
<syntax>DumpIOInput On|Off</syntax>
<default>DumpIOInput Off</default>
<contextlist><context>server config</context></contextlist>
<compatibility>DumpIOInput is only available in Apache 2.1.3 and
later.</compatibility>

<usage>
    <p>Enable dumping of all input.</p>

    <example><title>Example</title>
    <highlight language="config">
      DumpIOInput On
      </highlight>
    </example>
</usage>

</directivesynopsis>

<directivesynopsis>

<name>DumpIOOutput</name>
<description>Dump all output data to the error log</description>
<syntax>DumpIOOutput On|Off</syntax>
<default>DumpIOOutput Off</default>
<contextlist><context>server config</context></contextlist>
<compatibility>DumpIOOutput is only available in Apache 2.1.3 and
later.</compatibility>

<usage>
    <p>Enable dumping of all output.</p>

    <example><title>Example</title>
    <highlight language="config">
      DumpIOOutput On
      </highlight>
    </example>
</usage>

</directivesynopsis>

</modulesynopsis>