fall 2009 server architecture

[Hunter Blanks]

My current thinking is to:

1) run multiple guest Xen instances to separate out web app traffic
from static web, mail & shell access.

2) (possibly) offer vserver instances inside one guest Xen instance
for folks wanting a low power VPS

Doing this lets us do perhaps the two things that are hard to come by
elsewhere, and that we can do well: (1) provide a secure, central
server with shell access, with customizable e-mail, and (2) provide
both static file and custom web application hosting for individuals
and small organizations.

I am strongly inclined to use nginx for static web serving and isolate
it from both cgi and web app servers, which can continue to use
apache.

Thoughts?