title: Remote X Display with Fedora 10 running KDM and XFCE
body: <p>I am developing a JSF web application on a Windows box using Emacs as my editor but I far prefer to use Emacs in a Linux environment.  In the (somewhat distant) past it was a no-brainer to use a remote X display to accomplish this very useful programming aid.  Cygwin helps out somewhat but true remote X is the preferred solution.  However, in recent Fedora (and Ubuntu) distros, remote X is a royal pain in the butt (Google remote X or XDMCP) and you will see there are now many configuration settings for GDM, XDM and KDM not to mention xhost and the firewall configurations that make remote X more difficult than convincing Barry Kelley that this type of question is TRULY programming related.</p>
  
  <p>Now, I am running Fedora 10 with an XFCE environment and KDM as my display manager.  I have turned the firewall off, selinux off, enabled XDMCP (in /etc/kde/kdm/kdmrc), but I still get "Can't open display" when testing using (Cywin) "$ export DISPLAY= myfedora10box:0.0; xclock".  The test works fine when I remote display to another windows box running Cygwin/X.  So the problem is clearly a configuration setting in Fedora 10. </p>