lpd

cups-lpd(8)						      Easy Software Products						       cups-lpd(8)

NAME

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

SYNOPSIS

       cups-lpd [ -o option=value ]

DESCRIPTION

       cups-lpd  is the CUPS Line Printer Daemon ("LPD") mini-server that supports 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).	Add  the  following  line  to  the
       inetd.conf file to enable the cups-lpd daemon:

	   printer stream tcp nowait lp /usr/lib/cups/daemon/cups-lpd cups-lpd

       If you are using the newer xinetd(8) daemon, add the following lines to the xinetd.conf file:

	   service printer
	   {
	       socket_type = stream
	       protocol = tcp
	       wait = no
	       user = lp
	       server = /usr/lib/cups/daemon/cups-lpd
	   }

SECURITY

       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 files
       used by TCP wrappers. Therefore, running cups-lpd on your server will allow any computer on your network (and perhaps the entire  Internet)
       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 comput-
       ers that should be able to print through your server.

OPTIONS

       The -o option to cups-lpd 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:

	   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

       The example shown resets the document format to be application/octet-stream, which forces auto-detection of the print file type.

COMPATIBILITY

       cups-lpd  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.

       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.

SEE ALSO

       inetd(8), xinetd(8), CUPS Software Administrators Manual, http://localhost:631/documentation.html

COPYRIGHT

       Copyright 1993-2002 by Easy Software Products, All Rights Reserved.

4 March 2002						    Common UNIX Printing System 					       cups-lpd(8)