I have 3 sites which need to be hosted on a web server (apache2 from repo running on Ubuntu 12.04). They are each in their own subdirectory within /var/www/

I would like apache to serve files from the relevant directories only if the directory name is given in the URL, but not serve the /var/www/ directory itself.

E.g: http://1.2.3.4/site1/ should work and serve the index from /var/www/site1/index.html, but http://1.2.3.4/ should not serve anything.

Currently, I can't get the url to point to the directory. Either I can get http://1.2.3.4/ to serve everything within /var/www/ (including /var/www/site2/secretstuff/), or I can get the root http://1.2.3.4/ to serve one of the subdirectories (/var/www/site1/). This is unacceptable site 1 needs Indexes enabled but the others must not.

I just want to make site1's config only respond to requests of the form http://1.2.3.4/site1/* and not handle requests of the form http://1.2.3.4/

I do not have a domain name set up so I can't use subdomains.