I'm a bit of a noob so bear with me.

I routinely check my logs for fun and I got many (thousands) of these errors: <http://pastebin.com/i0iSKDCW>

The server I'm having problems with is a Burst.net VPS and I'm wondering if I've been allocated someone else's old IP and they left their domain configured or somesuch?

What I want to do, is use iptables or somesuch to deny all requests like this (with the host: eciou.net) without letting them get to Nginx (I have some slow software running underneath Nginx).

**Solution**

As suggested by the wonderful people below, I simply added this to my configuration file:

server {
 listen [::]:80;
 server\_name eciou.net;
 location / {
 root /srv/http/static/eciou;
 index index.html;
 }
 }

Note that the [::]:80 is because my server is also set up to accept IPv6. Normally I believe just 80 would do.