Hi Guys There's two points of view to look at: 1. Of course what will Oracle support. 2. What Linux vendors offer enterprise level support. Suse and Red Hat dominate #2 above. Red Hat is more popular in North America and Suse is more familiar in Europe. But basically they are more vigoursly tested, since the vendor has to support. Oops...3. What will app vendors support ;-) HTH Brian Peasey Winnipeg, MB Canada -- //www.freelists.org/webpage/oracle-l