Edsall, William (WJ) wrote: > Hello list, > In the past we have instructed users to perform 'xhost +' from their centos desktop, then set the DISPLAY variable on a remote computer to forward their display back to the desktop. This does not seem to work on centos 6 - but it did work in centos 5. It works from a vnc session on the desktop machine, but does not work from the local desktop. > > We would typically use a display variable like this: export DISPLAY=163.198.177.218:0.0 - The target system acts like the request is being refused: > Error: Can't open display: 163.198.177.218:0.0 > > Have there been any changes in centos 6 which make xhost + behave differently for the desktop session? > We've been struggling with this issue now for some time - can't find the right solution. Any help would be appreciated! Try adding: DisallowTCP=false in the [security] section of /etc/gdm/custom.conf Then restart X/gdm (/sbin/init 3; /sbin/init 5) James Pearson