Testing nginx without domain name

Better solution: Have fun testing many applications

Set host entry on dev machine (not the server). /etc/hosts C:\Windows\System32\drivers\etc\hosts

Add as one Line: ipaddress domain i.e 82.32.45.144 is your vps:

82.32.45.144 sample.com
82.32.45.144 www.sample.com
82.32.45.144 wiki.sample.com
82.32.45.144 shop.sample.com
82.32.45.144 sample.co.uk
82.32.45.144 sample.de

You can just use your VPS's ip in place of "sample.com":

server {
    listen 80;
    server_name <your_ip_address>;

    <other stuff>

}

If you haven't already, you may want to assign a static IP; I believe Digital Ocean gives you some free ones.