added nginx docker image

nginx/conf/nginx.vh.no-default.conf

@@ -0,0 +1,16 @@
+# Drop requests for unknown hosts
+#
+# If no default server is defined, nginx will use the first found server.
+# To prevent host header attacks, or other potential problems when an unknown
+# servername is used in a request, it's recommended to drop the request
+# returning 444 "no response".
+
+server {
+  listen 80 default_server;
+  return 444;
+}
+
+server {
+  listen 443 ssl http2 default_server;
+  ssl_reject_handshake on;
+}