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sxpc(1)				       X			       sxpc(1)

NAME
       The Simple X Protocol Compressor

SYNOPSIS
       This  program  provides compression of the X protocol stream. It	is in-
       tended to be used to improve the	performance of X applications  over  a
       slow  internet  connection.   (e.g.  slip, cslip, or term) It assumes a
       Unix operating system at	 both ends of  the  link.  Transferring	 large
       bitmaps	or  images  through sxpc may be	slower than not	using it.  The
       algorithms used are geared primarily for	the data exchanged during  in-
       teractive  use  where the same data may be sent several times with only
       small changes.  (e.g. editing)

       WARNING WARNING	DANGER DANGER

       If you use this program,	use xauth to provide  SECURITY,	 since	 host-
       based  security will be BYPASSED.  See README.xauth. (If	somebody knows
       you are running sxpc they will be able to connect to  your  server  and
       watch what you type, what shows up on your screen, or type for you... A
       BAD THING :-()

DESCRIPTION
       For notes on using sxpc with term see README.term.

       On the X	clients' host:

       For csh based shells:

       setenv DISPLAY `sxpc remote $DISPLAY `

       For sh based shells:

       DISPLAY=`sxpc remote $DISPLAY`

       export DISPLAY

       (where  $DISPLAY	 is the	display	setting	you would normally use to con-
       nect to the X server from the clients' host.)

       On the X	server host:
	sxpc local $DISPLAY

       Killing SXPC To kill sxpc in your .logout. (or any other	time.)

       kill `cat /tmp/sxpc.THEDISPLAYARG`

       (where THEDISPLAYARG is the value of $DISPLAY used in  the  sxpc	 line,
       NOT  the	 value DISPLAY setting sxpc outputs. ie	if you run sxpc	remote
       foo:0.0 it would	be /tmp/sxpc.foo:0.0.)

ENVIRONMENT VARIABLES
       XCLIENTGATEPORT

       Sets the	base port on which clients will	 connect  to  the   X  server.
       This  will be added to the display number to get	the final port number.
       The default is 6008 so that by default the DISPLAY setting  to  connect
       to sxpc will be localhost:DisplayNumber+8:0.0

       XCOMPGATEPORT

       Sets  the base port on which the	sxpc running on	the X server host will
       listen for connections. This will be added to the display number	to get
       the final port number.  The default is 4000 so that the sxpc on	the  X
       server  host  will listen on port 4000 (if it is	directed to display on
       display 0.)

AUTHOR
       Rob Ryan	(robr@cmu.edu)

X				   09sep1993			       sxpc(1)

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<https://man.freebsd.org/cgi/man.cgi?query=sxpc&sektion=1&manpath=FreeBSD+Ports+15.0>

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