NAME

       rlprd - remote printing proxy daemon

SYNOPSIS

       rlprd  [-nqV] [-pport] [-ttimeout] [--debug]

DESCRIPTION

       rlprd  is  a  proxy which runs between the remote printing commands (rlpr(1), rlpq(1), and
       rlprm(1)) and standard lpd print servers in situations where the remote printing  commands
       cannot be installed setuid root.  For a discussion on how to configure the remote printing
       commands, please see rlpr(1).

       rlprd needs to be installed setuid root - if it cannot be run this way, it is useless.

       rlprd works by mapping non-privileged port requests from  rlpr(1)  clients  to  privileged
       ports  so  that  lpd's  will  listen to them.  Eliminating the "security" gained by having
       privileged ports is a non-issue, since the Internet is no longer just Unix,  and  Unix  is
       the only OS that has the privileged port concept.

       rlprd  is  not  a  replacement  for lpd(8).  It merely passes data to a lpd(8) on a target
       machine (which is specified by an invocation of a remote printing command).  However, when
       a  client is using the rlpr suite of tools to do remote printing, the client does not need
       to run an lpd(8) locally.

       Note that once an rlprd is set up on a network (including  the  Internet),  any  host  may
       connect to it and use its proxy services if it knows the name of the machine running it.

OPTIONS

       --debug
              Print gobs of debugging information.

       -n, --no-daemon
              Don't run rlprd as a daemon.  Usually not needed.

       -p, --port=number
              Select an alternate port (instead of 7290) to listen on.  Usually not needed.

       -q, --quiet, --silent
              Quiet mode - stay quiet (except for fatal errors).

       -t --timeout=seconds
              Set  the  inactivity timer.  If the connection hangs for more than seconds seconds,
              then rlprd will time out the connection.   Use  the  special  value  `-1'  to  wait
              forever.  Default timeout is 3 seconds.

       -V, --version
              Print version and exit.

SEE ALSO

       rlpr(1), rlpq(1), rlprm(1), rlprrc(5)

AUTHOR

       meem <meem@gnu.org>

BUGS/LIMITATIONS

       It is not currently possible to run rlprd from inetd(8).