p910nd(8) [debian man page]

P910ND(8)						      System Manager's Manual							 P910ND(8)

NAME

       p910nd - port 9100+n printer daemon

SYNOPSIS

       p910nd [-f device] [-i bindaddr] [-bv] [0|1|2]

DESCRIPTION

       p910nd  is  a small daemon that copies any data received on the port it is listening on to the corresponding printer port.  It is primarily
       intended for diskless Linux hosts running as printer drivers but there is no reason why it could not be used on diskful hosts.	Port  9100
       is copied to /dev/lp0, 9101 to /dev/lp1 and 9102 to /dev/lp2.  The default is port 9100 to /dev/lp0.

       The -f option can be used to specify a different printer device, e.g. /dev/usblp0.

       The -i option can be used to specify binding to one address instead of all interfaces which is the default.

       The -b option turns on bidirectional copying.

       The -v option shows the version number.

INSTALLATION

       p910nd can be run as a standalone daemon or from (x)inetd.  It will automatically detect if it is running under (x)inetd.

       A  sample  SysVinit  script,  p910nd.sh,  is provided for operation as a daemon.  p910nd will change its name under ps to match the printer
       port, i.e.  p9100d, p9101d and p9102d.

       When running under (x)inetd, the /etc/inetd.conf entry should look something like this (with tcpwrappers protection):

       p9101 stream tcp nowait root /usr/sbin/tcpd /sbin/p910nd

       Don't forget to add an entry in /etc/services for the corresponding port.

       If operating with lprng, use the host%port syntax for the printer device to send jobs to it.

       If operating with CUPS, this is supported as the AppSocket protocol, also known as the JetDirect (probably TM) protocol.

       If operating with classic Berkeley lpd, a sample client, client.pl, is provided.   This	should	be  installed  as  the	ifilter  (if=)	in
       /etc/printcap.	banner.pl should be installed as the ofilter (of=) in /etc/printcap.  It may be necessary to create a dummy spool file for
       lpd (lp=).  This file will be opened but not written to.  The corresponding C versions are left as an exercise for the reader.

       When running under inetd, more than one instance could be started.  To avoid problems with multiple  instances  attempting  to  access  the
       printer at the same time, make sure that only one client is active at any one time. This can be done by designating one host as the spooler
       and sending all jobs to this host. You will probably need to set up an intermediate queue anyway to provide print job filtering.

       If built with USE_WRAP, it uses the libwrap library (tcpwrappers).  Access control can be done with /etc/hosts.allow  and  /etc/hosts.deny.
       The service name is p910nd.

DIAGNOSTICS

       p910nd logs error messages to syslog.

SEE ALSO

       printcap(5), hosts_access(5)

FILES

       /var/run/p9100d.pid, /var/lock/p910nd/p9100d, /etc/hosts.allow, /etc/hosts.deny

COPYRIGHT

       p910nd is under the GNU Public License Version 2

AUTHOR

       Ken Yap (greenpossum ATSIGN users PERIOD sourceforge PERIOD net)

DATE

       Version 0.95 February 2011

								 16 February 2011							 P910ND(8)

Check Out this Related Man Page

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)

Linux and UNIX Man Pages

p910nd(8) [debian man page]

Check Out this Related Man Page