cups-lpd man page on JazzOS

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cups-lpd(8)			  Apple Inc.			   cups-lpd(8)

       cups-lpd - receive print jobs and report printer status to lpd clients

       cups-lpd [ -n ] [ -o option=value ]

       cups-lpd	 is the CUPS Line Printer Daemon ("LPD") mini-server that sup‐
       ports legacy client systems that use the LPD  protocol.	cups-lpd  does
       not  act	 as a standalone network daemon but instead operates using the
       Internet "super-server" inetd(8) or xinetd(8). If you are using	inetd,
       add  the	 following  line to the inetd.conf file to enable the cups-lpd

	   printer stream tcp nowait lp /system/resources/cups/1.3.4/lib/cups/daemon/cups-lpd cups-lpd \
	       -o document-format=application/octet-stream

       Note: If you are using Solaris 10 or higher, you must  run  the	inetd‐
       conv(1m) program to register the changes to the inetd.conf file.

       If  you	are  using  the	 newer	xinetd(8)  daemon, create a file named
       /etc/xinetd.d/cups containing the following lines:

	   service printer
	       socket_type = stream
	       protocol = tcp
	       wait = no
	       user = lp
	    group = sys
	    passenv =
	       server = /system/resources/cups/1.3.4/lib/cups/daemon/cups-lpd
	    server_args = -o document-format=application/octet-stream

	    Disables reverse address lookups; normally cups-lpd	 will  try  to
	    discover the hostname of the client via a reverse DNS lookup.

       -o name=value
	    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; the examples in the previous section set the
	    "document-format"  option  to   "application/octet-stream"	 which
	    forces autodetection of the print file format.

       cups-lpd performs well with small numbers of clients and printers. How‐
       ever, 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.

       cups-lpd	 currently  does  not  perform any access control based on the
       settings in cupsd.conf(5) or in	the  hosts.allow(5)  or	 hosts.deny(5)
       files  used by TCP wrappers. Therefore, running cups-lpd on your server
       will allow any computer on your network (and perhaps the entire	Inter‐
       net) to print to your server.

       While  xinetd  has  built-in access control support, you should use the
       TCP wrappers package with inetd to limit access to only those computers
       that should be able to print through your server.

       cups-lpd is not enabled by the standard CUPS distribution.  Please con‐
       sult with your operating system	vendor	to  determine  whether	it  is
       enabled on your system.

       cups-lpd	 does  not enforce the restricted source port number specified
       in RFC 1179, as using restricted ports does not prevent users from sub‐
       mitting	print  jobs.  While  this  behavior is different than standard
       Berkeley LPD implementations, it should not affect normal client opera‐

       The output of the status requests follows RFC 2569, Mapping between LPD
       and IPP Protocols. Since many LPD implementations stray from this defi‐
       nition, remote status reporting to LPD clients may be unreliable.

       cups(1), cupsd(8), inetconv(1m), inetd(8), xinetd(8),

       Copyright 2007 by Apple Inc.

24 April 2006		  Common UNIX Printing System		   cups-lpd(8)

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