Orbisius Statica is a static file web server that can access and serve files depending on the virtual hosts.
nginx can run only with one user account and doesn't suexec features like Apache web server, so this static web server is a great solution to overcome this.
if your nginx is able to access all site's files that means that there's a chance that the hosting set up is not as it secure as it should be.
This server is used internally at various Orbisius products.
If you'd like to get a license and set it up on your server, contact us