I currently have a Wordpress multisite network running at
http://www.mysite.com and rooted in
/var/www/html. I need to set up a completely separate, single-site Wordpress installation accessible via
http://www.mysite.com/intranet and rooted in
/var/www/html/vhosts/intranet/html. It will use a separate database, a separate set of plugins and themes, etc.
I'm aware that this is not the best of ideas, but it's what the client wants. How can I achieve this setup?