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