=== Hiding php-fpm version ====
If you run a curl on your website similar to the curl below, does it return nginx versions? 
\\
This is NOT secure. We will now make a simple change to the nginx.conf file to hide this
==Example curl:==
<sxh bash>
curl -LIsX GET lukeslinux.co.uk | grep nginx
</sxh>
To hide the nginx value, add the following line in the http section
<sxh bash>
server_tokens off;
</sxh>
Restart nginx and you are done. Test again by rerunning the curl command.