1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 2 3<html> 4 <head> 5 <meta name="generator" content="HTML Tidy, see www.w3.org"> 6 <title>Bounce Queue </title> 7 <meta name="GENERATOR" content= 8 "Modular DocBook HTML Stylesheet Version 1.7"> 9 <link rel="HOME" title=" LPRng Reference Manual" href= 10 "index.htm"> 11 <link rel="UP" title="Printcap Database " href= 12 "printcapref.htm"> 13 <link rel="PREVIOUS" title="Serial Printer" href="serial.htm"> 14 <link rel="NEXT" title="Job Format Translation " href= 15 "translateformat.htm"> 16 </head> 17 18 <body class="SECT1" bgcolor="#FFFFFF" text="#000000" link= 19 "#0000FF" vlink="#840084" alink="#0000FF"> 20 <div class="NAVHEADER"> 21 <table summary="Header navigation table" width="100%" border= 22 "0" cellpadding="0" cellspacing="0"> 23 <tr> 24 <th colspan="3" align="center">LPRng Reference Manual: 5 25 Sep 2003 (For LPRng-3.8.22)</th> 26 </tr> 27 28 <tr> 29 <td width="10%" align="left" valign="bottom"><a href= 30 "serial.htm" accesskey="P">Prev</a></td> 31 32 <td width="80%" align="center" valign="bottom">Chapter 33 12. Printcap Database</td> 34 35 <td width="10%" align="right" valign="bottom"><a href= 36 "translateformat.htm" accesskey="N">Next</a></td> 37 </tr> 38 </table> 39 <hr align="LEFT" width="100%"> 40 </div> 41 42 <div class="SECT1"> 43 <h1 class="SECT1"><a name="LPDBOUNCE">12.11. Bounce 44 Queue</a></h1> 45 46 <p>Options used:</p> 47 48 <ul> 49 <li> 50 <p><var class="LITERAL">lpd_bounce</var> FLAG <span 51 class="emphasis"><i class="EMPHASIS">produces a single 52 file for forwarding</i></span></p> 53 </li> 54 55 <li> 56 <p><var class="LITERAL">bq_format=</var><span class= 57 "emphasis"><i class="EMPHASIS">format of filtered 58 files</i></span></p> 59 </li> 60 </ul> 61 <br> 62 <br> 63 64 <p>When the destination of a spool queue is another spool 65 queue the job is simply forwarded without any modifications. 66 However, sometimes it is essential that the job be modified 67 before forwarding, as when the remote spool queue is actually 68 a printer, and jobs need to be converted to the format 69 acceptable by the remote printer or banner pages added.</p> 70 71 <p>The <var class="LITERAL">lpd_bounce</var> flag marks a 72 spool queue as a bounce queue. <var class="LITERAL">Lpd</var> 73 will perform all of the usually job processing steps, such as 74 banner generation, filtering files, etc, but saves the output 75 to a file. This file is then sent to the destination print 76 queue for further processing.</p> 77 78 <div class="INFORMALEXAMPLE"> 79 <a name="AEN5933"></a> 80<pre class="SCREEN"> 81 # Simple example of a bounce queue 82 bounce:lp=bounce@bouncehost 83 bounce:server 84 :lp=lp@remote 85 :lpd_bounce 86 :sd=/var/spool/lpd/%P 87 :filter=/usr/local/bin/lpf 88 # uncomment ab if you want banner 89 #:ab 90</pre> 91 </div> 92 <br> 93 <br> 94 95 <p>Some comments:</p> 96 97 <ol type="1"> 98 <li> 99 <p>The <var class="LITERAL">lpd_bounce</var> option marks 100 the job as a bounce queue, and the <b class= 101 "APPLICATION">lpd</b> server will process the job through 102 the appropriate filter programs.</p> 103 </li> 104 105 <li> 106 <p>The printcap has filter specifications for different 107 job formats. These are the programs that will be used by 108 <b class="APPLICATION">LPRng</b> to process the job.</p> 109 </li> 110 111 <li> 112 <p>The <var class="LITERAL">bq_format</var> specifies the 113 job format for the output file sent to the remote spool 114 queue. If not specified, it defaults to <var class= 115 "LITERAL">l</var> (literal or binary).</p> 116 </li> 117 118 <li> 119 <p>The <var class="LITERAL">ab</var> (always print a 120 banner) flag will force a banner to be added to the job. 121 The banner generation is done as discussed in <a href= 122 "bannerprinting.htm">Banner Printing</a>.</p> 123 </li> 124 </ol> 125 <br> 126 <br> 127 </div> 128 129 <div class="NAVFOOTER"> 130 <hr align="LEFT" width="100%"> 131 132 <table summary="Footer navigation table" width="100%" border= 133 "0" cellpadding="0" cellspacing="0"> 134 <tr> 135 <td width="33%" align="left" valign="top"><a href= 136 "serial.htm" accesskey="P">Prev</a></td> 137 138 <td width="34%" align="center" valign="top"><a href= 139 "index.htm" accesskey="H">Home</a></td> 140 141 <td width="33%" align="right" valign="top"><a href= 142 "translateformat.htm" accesskey="N">Next</a></td> 143 </tr> 144 145 <tr> 146 <td width="33%" align="left" valign="top">Serial 147 Printer</td> 148 149 <td width="34%" align="center" valign="top"><a href= 150 "printcapref.htm" accesskey="U">Up</a></td> 151 152 <td width="33%" align="right" valign="top">Job Format 153 Translation</td> 154 </tr> 155 </table> 156 </div> 157 </body> 158</html> 159 160