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<th colspan="3" align="center">LPRng-HOWTO: 1 Apr 2002
(For LPRng-3.8.10)</th>
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<h1 class="SECT1"><a name="REQUIRECONFIG">2.6. System and
User Printcap, lpd.conf, and lpd.perms files</a></h1>
<p>The system <tt class="FILENAME">printcap</tt> file
contains the definitions of the print queues used by <b
class="APPLICATION">LPRng</b>, and is located in the
directory specified by the configuration <tt class=
"LITERAL">${sysconfdir}</tt> value. For a complete
description of the <tt class="FILENAME">printcap</tt> file
see <a href="printcapref.htm">Printcap Database</a>. If your
system does not have an existing <tt class=
"FILENAME">printcap</tt> file then a <i class=
"EMPHASIS">dummy</i> file similar to the following is
installed by default:</p>
<div class="INFORMALEXAMPLE">
<a name="AEN852"></a>
<pre class="SCREEN">
# dummy printcap file
lp:cm=Dummy Printcap Entry:
:lp=/dev/null
:sd=/var/spool/lpd/%P
</pre>
</div>
<br>
<br>
<p>In addition to the system <tt class=
"FILENAME">printcap</tt> file, each user can have a <tt
class="LITERAL">${HOME}/.printcap</tt> which contains
printcap entries as well. The the user <tt class=
"FILENAME">printcap</tt> file is in effect appended to the
system printcap file, and values in the user printcap file
override the system printcap file. However, in order to allow
users to specify a default printer after reading the printcap
file information the entries are sorted so that printcap
entries defined by users come first.</p>
<p>The <tt class="FILENAME">lpd.conf</tt> is located in the
<tt class="LITERAL">${sysconfdir}</tt> directory and provides
configuration settings for both the <b class=
"APPLICATION">LPRng</b> client and server programs. For a
complete description of the <tt class=
"FILENAME">lpd.conf</tt> file see <a href=
"configfile.htm">Configuration File, Defaults and
Overrides</a>. During installation the <tt class=
"FILENAME">${sysconfdir}/lpd.conf.template</tt> is created
with the default <b class="APPLICATION">LPRng</b> information
and if there is not an existing <tt class=
"FILENAME">${sysconfdir}/lpd.conf</tt> file is copied to
it.</p>
<p>The <tt class="FILENAME">lpd.perms</tt> is located in the
<tt class="LITERAL">${sysconfdir}</tt> directory and is only
by <b class="APPLICATION">lpd</b> to determine user
permissions for printing activities. For a complete
description of the <tt class="FILENAME">lpd.perms</tt> file
see <a href="permsref.htm">Permissions and Authentication</a>
for details. During installation the <tt class=
"FILENAME">lpd.perms.template</tt> file is installed in the
<tt class="FILENAME">${sysconfdir}/lpd.perms.template</tt>
and if there is not an existing <tt class=
"FILENAME">lpd.perms</tt> file is copied to it.</p>
<p>By default, the <b class="APPLICATION">LPRng</b> client
programs <b class="APPLICATION">lpr</b>, <b class=
"APPLICATION">lpq</b>, <b class="APPLICATION">lprm</b>, and
<b class="APPLICATION">lprc</b> will require a <tt class=
"FILENAME">lpd.conf</tt> and <tt class=
"FILENAME">printcap</tt> file to be installed on the local
host. You can relax this requirement by setting using the <tt
class="LITERAL">--disable-require_configfile</tt>
configuration option. You can also create empty files to
satisfy the program requirements.</p>
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