I have one dedicated server with below configurations
i3 - Dual Core - 3.06Ghz H/T
16GB RAM
500GB SATA2
Now I want to execute two different Rai
Passenger Phusion with Apache is a solid approach. The fact that they are using the same database shouldn't be a problem (just make sure they don't step on each other in any way).
Generally, just set things up as normal, but take a look at Apache name-based virtual hosts:
http://httpd.apache.org/docs/2.2/vhosts/name-based.html