Set store_ip in config.yml

app/views/admin/sites/index.html.erb

@@ -1,7 +1,7 @@
 <% if @site && @site.registered? %>
 	registered
 <% else %>
-	<%= link_to 'register', 'http://localhost:3001/user/sites/register?' + 
+	<%= link_to 'register', "http://#{APP_CONFIG['store_ip']}/user/sites/register?" + 
 			{:site => {:school => @site.school, :department => @site.department}}.to_query,
 			:target => '_blank' %>
 <% end %>