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<th colspan="3" align="center">LPRng Reference Manual: 24
Sep 2004 (For LPRng-3.8.28)</th>
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<h1 class="SECT1"><a name="LPDBOUNCE" id="LPDBOUNCE">12.11.
Bounce Queue</a></h1>
<p>Options used:</p>
<ul>
<li>
<p><tt class="LITERAL">lpd_bounce</tt> FLAG <span class=
"emphasis"><i class="EMPHASIS">produces a single file for
forwarding</i></span></p>
</li>
<li>
<p><tt class="LITERAL">bq_format=</tt><span class=
"emphasis"><i class="EMPHASIS">format of filtered
files</i></span></p>
</li>
</ul>
<p>When the destination of a spool queue is another spool queue
the job is simply forwarded without any modifications. However,
sometimes it is essential that the job be modified before
forwarding, as when the remote spool queue is actually a
printer, and jobs need to be converted to the format acceptable
by the remote printer or banner pages added.</p>
<p>The <tt class="LITERAL">lpd_bounce</tt> flag marks a spool
queue as a bounce queue. <tt class="LITERAL">Lpd</tt> will
perform all of the usually job processing steps, such as banner
generation, filtering files, etc, but saves the output to a
file. This file is then sent to the destination print queue for
further processing.</p>
<div class="INFORMALEXAMPLE">
<a name="AEN5945" id="AEN5945"></a>
<pre class="SCREEN"># Simple example of a bounce queue
bounce:lp=bounce@bouncehost
bounce:server
:lp=lp@remote
:lpd_bounce
:sd=/var/spool/lpd/%P
:filter=/usr/local/bin/lpf
# uncomment ab if you want banner
#:ab</pre>
</div>
<p>Some comments:</p>
<ol type="1">
<li>
<p>The <tt class="LITERAL">lpd_bounce</tt> option marks the
job as a bounce queue, and the <b class=
"APPLICATION">lpd</b> server will process the job through
the appropriate filter programs.</p>
</li>
<li>
<p>The printcap has filter specifications for different job
formats. These are the programs that will be used by
<b class="APPLICATION">LPRng</b> to process the job.</p>
</li>
<li>
<p>The <tt class="LITERAL">bq_format</tt> specifies the job
format for the output file sent to the remote spool queue.
If not specified, it defaults to <tt class="LITERAL">l</tt>
(literal or binary).</p>
</li>
<li>
<p>The <tt class="LITERAL">ab</tt> (always print a banner)
flag will force a banner to be added to the job. The banner
generation is done as discussed in <a href=
"bannerprinting.htm">Banner Printing</a>.</p>
</li>
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