.\"
-.\" "$Id: cups-lpd.man,v 1.3 2001/01/23 16:26:20 mike Exp $"
+.\" "$Id$"
.\"
.\" cups-lpd man page for the Common UNIX Printing System (CUPS).
.\"
-.\" Copyright 1997-2001 by Easy Software Products.
+.\" Copyright 1997-2005 by Easy Software Products.
.\"
.\" These coded instructions, statements, and computer programs are the
.\" property of Easy Software Products and are protected by Federal
.\" Attn: CUPS Licensing Information
.\" Easy Software Products
.\" 44141 Airport View Drive, Suite 204
-.\" Hollywood, Maryland 20636-3111 USA
+.\" Hollywood, Maryland 20636 USA
.\"
-.\" Voice: (301) 373-9603
+.\" Voice: (301) 373-9600
.\" EMail: cups-info@cups.org
.\" WWW: http://www.cups.org
.\"
-.TH cups-lpd 8 "Common UNIX Printing System" "10 May 2000" "Easy Software Products"
+.TH cups-lpd 8 "Common UNIX Printing System" "11 August 2004" "Easy Software Products"
.SH NAME
cups-lpd \- receive print jobs and report printer status to lpd clients
.SH SYNOPSIS
.B cups-lpd
+[ -o
+.I option=value
+]
.SH DESCRIPTION
\fBcups-lpd\fR is the CUPS Line Printer Daemon ("LPD") mini-server that
supports legacy client systems that use the LPD protocol.
.br
.nf
-printer stream tcp nowait lp /usr/lib/cups/daemon/cups-lpd cups-lpd
+ printer stream tcp nowait lp /path/to/cups/daemon/cups-lpd cups-lpd -o document-format=application/octet-stream
.fi
+.LP
+If you are using the newer \fIxinetd(8)\fR daemon, add the following
+lines to the \fBxinetd.conf\fR file:
+.br
+.nf
+
+ service printer
+ {
+ socket_type = stream
+ protocol = tcp
+ wait = no
+ user = lp
+ group = sys
+ passenv =
+ server = /path/to/cups/daemon/cups-lpd
+ server_args = -o document-format=application/octet-stream
+ }
+.fi
+.LP
+The /path/to/cups/daemon is usually /usr/lib/cups/daemon or
+/usr/libexec/cups/daemon, depending on the operating system.
+Consult the cupsd.conf file for the local setting.
+.SH OPTIONS
+The \fI-o\fR option to \fBcups-lpd\fR inserts options for all print queues.
+Most often this is used to disable the "l" filter so that remote print jobs
+are filtered as needed for printing:
+.br
+.nf
+
+ printer stream tcp nowait lp /usr/lib/cups/daemon/cups-lpd cups-lpd \
+ -o document-format=application/octet-stream
+
+ server = /usr/lib/cups/daemon/cups-lpd
+ server_args = -o document-format=application/octet-stream
+.fi
+.LP
+The example shown resets the document format to be
+\fIapplication/octet-stream\fR, which forces auto-detection of the print
+file type.
+.SH PERFORMANCE
+\fBcups-lpd\fR performs well with small numbers of clients and
+printers. However, since a new process is created for each
+connection and since each process must query the printing system
+before each job submission, it does not scale to larger
+configurations. We highly recommend that large configurations
+use the native IPP support provided by CUPS instead.
+.SH SECURITY
+\fBcups-lpd\fR currently does not perform any access control
+based on the settings in \fIcupsd.conf(5)\fR or in the
+\fIhosts.allow(5)\fR or \fIhosts.deny\fR files used by TCP
+wrappers. Therefore, running \fBcups-lpd\fR on your server will
+allow any computer on your network (and perhaps the entire
+Internet) to print to your server.
+.LP
+While \fIxinetd\fR has built-in access control support, you
+should use the TCP wrappers package with \fIinetd\fR to limit
+access to only those computers that should be able to print
+through your server.
+.LP
+\fBcups-lpd\fR is not enabled by the standard CUPS distribution.
+Please consult with your operating system vendor to determine
+whether it is enabled in their distributions.
.SH COMPATIBILITY
-\fBcups-lpd\fR does not enforce the restricted source port number specified
-in RFC 1179, as using restricted ports does not prevent determined users
-from submitting print jobs. While this behavior is different than standard
-Berkeley LPD implementations, it should not affect normal client operations.
+\fBcups-lpd\fR does not enforce the restricted source port
+number specified in RFC 1179, as using restricted ports does not
+prevent users from submitting print jobs. While this behavior is
+different than standard Berkeley LPD implementations, it should
+not affect normal client operations.
.LP
-The output of the status requests follows RFC 2569, Mapping between
-LPD and IPP Protocols. Since many LPD implementations stray from this
-definition, remote status reporting to LPD clients may be unreliable.
+The output of the status requests follows RFC 2569, Mapping
+between LPD and IPP Protocols. Since many LPD implementations
+stray from this definition, remote status reporting to LPD
+clients may be unreliable.
.SH SEE ALSO
-inetd(8),
+cupsd(8), inetd(8), xinetd(8),
CUPS Software Administrators Manual,
http://localhost:631/documentation.html
.SH COPYRIGHT
-Copyright 1993-2001 by Easy Software Products, All Rights Reserved.
+Copyright 1993-2005 by Easy Software Products, All Rights Reserved.
.\"
-.\" End of "$Id: cups-lpd.man,v 1.3 2001/01/23 16:26:20 mike Exp $".
+.\" End of "$Id$".
.\"
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