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<th colspan="3" align="center">LPRng-HOWTO: 1 Apr 2002
(For LPRng-3.8.10)</th>
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<div class="CHAPTER">
<h1><a name="REMOTELOGGER">Chapter 21. Remote Logger
Operation</a></h1>
<div class="TOC">
<dl>
<dt><b>Table of Contents</b></dt>
<dt>21.1. <a href="remotelogger.htm#LOGGER">Logger
Network Communication</a></dt>
<dt>21.2. <a href="x10672.htm">Logger Messages</a></dt>
<dt>21.3. <a href="x10677.htm">Message Format</a></dt>
<dt>21.4. <a href="x10705.htm">Dump Messages</a></dt>
<dt>21.5. <a href="x10708.htm">LPD Messages</a></dt>
<dt>21.6. <a href="x10713.htm">Job Status Messages -
UPDATE</a></dt>
<dt>21.7. <a href="x10725.htm">Printer Status Messages -
PRSTATUS</a></dt>
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<p>Several sites have wanted a way to provide central logging
of job status and/or information. In order to do this, the
following functionality is implemented in <b class=
"APPLICATION">LPRng</b>.</p>
<div class="SECT1">
<h1 class="SECT1"><a name="LOGGER">21.1. Logger Network
Communication</a></h1>
<p>Options used:</p>
<ul>
<li>
<p><tt class="LITERAL">logger_destination=</tt><i
class="EMPHASIS">logger information destination</i></p>
</li>
<li>
<p><tt class="LITERAL">logger_pathname=</tt><i class=
"EMPHASIS">pathname of temp file for log
information</i></p>
</li>
<li>
<p><tt class="LITERAL">logger_max_size=</tt><i class=
"EMPHASIS">max size in K of temp file for log
information</i></p>
</li>
<li>
<p><tt class="LITERAL">logger_timeout=</tt><i class=
"EMPHASIS">time between connection attempts</i></p>
</li>
</ul>
<br>
<br>
<p>The printcap/configuration variable <tt class=
"LITERAL">logger_destination</tt> specifies a destination
in the standard <tt class="LITERAL">host%port</tt> notation
used by <b class="APPLICATION">LPRng</b>. Host is the
destination host, and can be a name or IP address. Port is
the port on the destination host. A TCP/IP connection is
made to the indicated port.</p>
<p>Log information is save in a temporary file specified by
<tt class="LITERAL">logger_path</tt>, and up to <tt class=
"LITERAL">logger_max_size</tt> K bytes of data will be
saved.</p>
<p>If a connection cannot be made to the <tt class=
"LITERAL">logger_destination</tt>, then every <tt class=
"LITERAL">logger_timeout</tt> seconds a new connection
attempt will be made. If <tt class=
"LITERAL">logger_timeout</tt> is 0, then a connection
attempt will be made every time new data arrives to be
logged.</p>
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