Access site without domain name via IP address on server with multiple virtualhosts
I have a single Digital Ocean droplet with 5 websites hosted on it via virtualhost. Everything works fine. Their domain names point to each one individually. Using Ubuntu 14.04 and Apache.
I want to add a sixth "test" site, without a domain name pointing to it. I want to use it to test out some WordPress stuff. The physical location of the home page to this site is:
Let's say my server's IP address is 555.555.555.555
What do I need to do to make this home page available to anyone on the internet as follows?