You've no doubt by now heard of the 'Oracle Enterprise Kernel' for linux. (I think I got that right) You may have also seen some of the bashing of it in the press. This however is quite interesting. Oracle Enterprise Linux 5.3 is LSB 4.0 certified. Do you see where Red Hat is? :) http://www.linuxfoundation.org/lsb-cert/productdir.php?by_lsb Jared Still Certifiable Oracle DBA and Part Time Perl Evangelist Oracle Blog: http://jkstill.blogspot.com Home Page: http://jaredstill.com