This is an exercise in intellectual curiosity. Do I understand the concept correctly? I see two possible applications: 1) Running instances of FC4 and FC5 beta as virtual machines. Does this make sense? 2) Splitting a server into functional virtual machines. For example, an instance running postfix, an instance running httpd and an instance for rbldnsd. a) Does this improve performance? b) Is it safe on a production server? Thanks. -- Our DNSRBL - Eliminate Spam: http://www.TQMcube.com/spam_trap.htm Zombie Graphs: http://www.TQMcube.com/zombies.php GeoGraphics: http://www.TQMcube.com/origins.php