Unique DNS for each Site

I have Omeka-S installed and running on our development server and am trying to see if we can assign unique DNS entries for each site. For instance, it appears each site will have a unique URL slug (per whatever we assign it), but they all are pointing to the same starting URL:

http://omekas.library.vanderbilt.edu/s/slug

What I am wanting to do is for the slug to start the URL, like this:

http://slug.library.vanderbilt.edu/

Is that possible? If so, how?

S doesn’t currently support subdomain-based site routing. You could probably hack something together with your server configuration but any absolute links S produced would be using the subdirectory-based links we currently use (/s/slug).

Since subdirectory routing is more widely accessible (no need to set DNS records), we focused on that for S’s initial release.