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<th colspan="3" align="center">LPRng-HOWTO: 8 Feb 2002
(For LPRng-3.8.6)</th>
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<div class="CHAPTER">
<h1><a name="LPRNGCLIENTS">Chapter 5. <b class=
"APPLICATION">LPRng</b> Clients - lpr, lprm, lpq, lpc,
lpstat</a></h1>
<div class="TOC">
<dl>
<dt><b>Table of Contents</b></dt>
<dt>5.1. <a href="lprngclients.htm#PRINTERINFO">Printer
and Server Information</a></dt>
<dt>5.2. <a href="x4058.htm">Command Line
-Pprinter@host</a></dt>
<dt>5.3. <a href="x4064.htm">Command Line
-Pprinter</a></dt>
<dt>5.4. <a href="x4070.htm">PRINTER, LPDEST, NPRINTER,
and NGPRINTER Environment Variables</a></dt>
<dt>5.5. <a href="x4086.htm">Wildcard Printcap
Entry</a></dt>
<dt>5.6. <a href="x4093.htm">First Printcap
Entry</a></dt>
<dt>5.7. <a href="defaultrmrp.htm">Default Printer and
Server Host</a></dt>
<dt>5.8. <a href="forcelocalhost.htm">Force Connection to
Localhost</a></dt>
<dt>5.9. <a href="allowusersetting.htm">User
Identification</a></dt>
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<p>The <b class="APPLICATION">LPRng</b> software is a true
set of client/server applications. The <b class=
"APPLICATION">LPRng</b> clients, <b class=
"APPLICATION">lpr</b>, <b class="APPLICATION">lpq</b>, <b
class="APPLICATION">lprm</b>, and <b class=
"APPLICATION">lpc</b> connect to a <b class=
"APPLICATION">lpd</b> server using a TCP/IP connection. This
means that you must have TCP/IP networking enabled on your
workstation to use <b class="APPLICATION">LPRng</b>.</p>
<p>However, you do not need to have an external network
connection to the Internet. For most single system users, the
<b class="APPLICATION">lpd</b> server is running on the same
workstation as the client program, and the clients will
simply talk to the <tt class="LITERAL">localhost</tt>.</p>
<div class="SECT1">
<h1 class="SECT1"><a name="PRINTERINFO">5.1. Printer and
Server Information</a></h1>
<p>Options used:</p>
<ul>
<li>
<p><tt class="ENVAR">PRINTER</tt>, <tt class=
"ENVAR">LPDEST</tt>, <tt class="ENVAR">NPRINTER</tt>
<tt class="ENVAR">NGPRINTER</tt> <i class=
"EMPHASIS">Environment variables</i></p>
</li>
<li>
<p><tt class="LITERAL">force_localhost</tt> FLAG <i
class="EMPHASIS">force clients to send requests to
localhost</i></p>
</li>
<li>
<p><tt class="LITERAL">require_explicit_q</tt> FLAG <i
class="EMPHASIS">require queue to be specified</i></p>
</li>
</ul>
<br>
<br>
<p>When an <b class="APPLICATION">LPRng</b> client such as
<b class="APPLICATION">lpr</b>, <b class=
"APPLICATION">lpq</b>, <b class="APPLICATION">lprm</b>, or
<b class="APPLICATION">lpc</b> needs to communicate with a
print server, the only information they normally need
is:</p>
<ol type="1">
<li>
<p>The remote printer (<tt class="LITERAL">:rp</tt>)
value to be used in requests to the <b class=
"APPLICATION">lpd</b> print server. This is sometimes
referred to as the <i class="EMPHASIS">printer</i> or
<i class="EMPHASIS">print queue</i> name.</p>
</li>
<li>
<p>The remote server (<tt class="LITERAL">:rm</tt>)
which is the The IP address or hostname of the <i
class="EMPHASIS">print server</i>.</p>
</li>
<li>
<p>The original queue name specified by the user which
may be used as part of the job information sent to the
print server.</p>
</li>
</ol>
<br>
<br>
<p><b class="APPLICATION">LPRng</b> has several ways to
specify the <i class="EMPHASIS">printer queue</i> and <i
class="EMPHASIS">server</i> information.</p>
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