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NetBSD 6.1.5 - man page for pcnfsd (netbsd section 8)

RPC.PCNFSD(8)									    RPC.PCNFSD(8)

NAME
       pcnfsd, rpc.pcnfsd - (PC)NFS authentication and print request server

SYNOPSIS
       /usr/sbin/rpc.pcnfsd

DESCRIPTION
       pcnfsd  is  an  RPC  server that supports Sun ONC clients on PC (DOS, OS/2, Macintosh, and
       other) systems. This page describes version two of the pcnfsd server.

       rpc.pcnfsd may be started from /etc/rc.local or by the inetd(8) superdaemon. It reads  the
       configuration file /etc/pcnfsd.conf if present, and then services RPC requests directed to
       program number 150001. This release of the pcnfsd daemon supports both version 1 and  ver-
       sion  2 of the pcnfsd protocol. Consult the rpcgen source file pcnfsd.x for details of the
       protocols.

       The requests serviced by pcnfsd fall into three categories: authentication, printing,  and
       other. Only the authentication and printing services have administrative significance.

AUTHENTICATION
       When  pcnfsd  receives a PCNFSD_AUTH or PCNFSD2_AUTH request, it will "log in" the user by
       validating the username and password and  returning  the  corresponding	uid,  gids,  home
       directory,  and umask. If pcnfsd was built with the WTMP compile-time option, it will also
       append a record to the wtmp(5) data base. If you do not wish to record PC "logins" in this
       way, you should add a line of the form

	      wtmp off

       to the /etc/pcnfsd.conf file.

PRINTING
       pcnfsd supports a printing model based on the use of NFS to transfer the actual print data
       from the client to  the	server.  The  client  system  issues  a  PCNFSD_PR_INIT  or  PCN-
       FSD2_PR_INIT  request,  and  the  server  returns  the path to a spool directory which the
       client may use and which is exported by NFS.  pcnfsd creates a subdirectory  for  each  of
       its  clients:  the  parent directory is normally /export/pcnfs and the subdirectory is the
       hostname of the client system.  If you wish to  use  a  different  parent  directory,  you
       should add a line of the form

	      spooldir path

       to the /etc/pcnfsd.conf file.

       Once  a client has mounted the spool directory using NFS and has transferred print data to
       a file in this directory, it will issue a  PCNFSD_PR_START  or  PCNFSD2_PR_START  request.
       pcnfsd  handles	this,  and  most  other print-related requests, by constructing a command
       based on the printing services of the server operating system and  executing  the  command
       using the identity of the PC user. Since this involves set-user-id privileges, pcnfsd must
       be run as root.

       Every print request from the client includes the name of the printer which is to be  used.
       In  SunOS, this name corresponds to a printer definition in the /etc/printcap(5) database.
       If you wish to define a non-standard way of processing print data, you should define a new
       printer and arrange for the client to print to this printer. There are two ways of setting
       up a new printer.  The first involves the addition of an entry to /etc/printcap(5) and the
       creation  of filters to perform the required processing. This is outside the scope of this
       discussion. In addition, pcnfsd includes a mechanism by	which	you  can  define  virtual
       printers  known only to pcnfsd clients. Each printer is defined by a line in the /etc/pcn-
       fsd.conf file of the following form

	      printer name alias-for command

       name is the name of the printer you want to define. alias-for is  the  name  of	a  "real"
       printer which corresponds to this printer. For example, a request to display the queue for
       name will be translated into the corresponding request for the printer alias-for.  If  you
       have  defined  a  printer in such a way that there is no "real" printer to which it corre-
       sponds, use a single "-" for this field. (See the definition of the printer test below for
       an  example.)  command  is  a command which will be executed whenever a file is printed on
       name.  This command is executed by the Bourne shell, /bin/sh using the -c option. For com-
       plex  operations  you should construct an executable shell program and invoke that in com-
       mand.  Within command the following tokens will be replaced:

       Token	 Substitution

       $FILE	 Replaced by the full path name of the print data file. When the command has been
		 executed, the file will be unlinked.

       $USER	 Replaced by the username of the user logged in to the client system.

       $HOST	 Replaced by the host name of the client system.

       Consider the following example /etc/pcnfsd.conf file:

	      printer rotated lw /usr/local/bin/enscript -2r $FILE
	      printer test - /usr/bin/cp $FILE /usr/tmp/$HOST-$USER

       If  a  client  system  prints  a  job  on the printer rotated the utility enscript will be
       invoked to pre-process the file $FILE. In this case, the -2r option causes the file to  be
       printed	in two-column rotated format on the default PostScript(R) printer.  If the client
       requests a list of the print queue for the printer rotated the pcnfsd daemon  will  trans-
       late this into a request for a listing for the printer lw.

       The  printer  test  is used only for testing. Any file sent to this printer will be copied
       into /usr/tmp.  Any request to list the queue, check the status, etc. of printer test will
       be rejected because the alias-for has been specified as "-".

FILES
       /etc/pcnfsd.conf    configuration file
       /export/pcnfs	   default print spool directory

SEE ALSO
       lpr(1), lpc(8)

HISTORY
       The  pcnfsd source code is distributed by Sun Microsystems, Inc. with their PC/NFS product
       under terms described in common.h in that source code.  Those terms require  that  you  be
       informed that this version of pcnfsd was modified to run on NetBSD and is NOT supported by
       Sun.

					  25 April 1991 			    RPC.PCNFSD(8)


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