>>>>> "Paul" == Paul Howarth <paul () city-fan ! org> writes:
>>>>> "wnk" == Wojciech Komornicki <wnk () hamline ! edu> writes:
On Fri, 2005-07-01 at 14:10 -0500, Wojciech Komornicki wrote:
wnk:> I was getting the message
wnk:> Can't open display: xxx.xxx.xxx.xxx:0.0
wnk:> It terns out that by default on my FC4, X does not listen to tcp. You
wnk:> can enable listening to the TCP port by running
wnk:> gdmsetup
wnk:> as root or be editing the file
wnk:> gdm.conf
wnk:> The relevant setting is
wnk:> DisallowTCP
wnk:> If you want X to listen the tcp set this to false
wnk:>
wnk:> You will have to restart the X server after making changes. To run a
wnk:> program (prog) on the client (light.unix) which will have its display on
wnk:> the server (dark.unix) you need to
wnk:> 1) tell the server that you allow light.unix to talk to it with
wnk:> xhost +light.unix
wnk:> 2) start prog (on light.unix) with the command
wnk:> prog -display dark.unix:0.0
wnk:> (or you can set the DISPLAY environment variable)
wnk:>
wnk:> I have not been able to get authentication working using xauth which
wnk:> should allow you to run programs without using xhost.
Paul:> Why don't you use "ssh -X light.unix" on dark.unix, opening a secure
Paul:> connection from dark to light with X forwarding (i.e. running "prog"
Paul:> just works), so that you don't need to set up the tcp listening and
Paul:> don't have to mess about with "xhost" and $DISPLAY?
Thanks Paul.
Your suggestion works to run an application using ssh, i.e., the
following works from dark.unix
ssh -X light.unix app-name
However, I cannot log into light.unix and then run an application which
opens up on dark.unix
--
Wojciech Komornicki
