Restrict traffic on port 8080 and 8443 to local traffic only when using Nginx

[douglascrp]

@loftux what do you think about this idea?

I got it from here http://blog.gmeiners.net/2015/03/fine-tuning-alfresco-5-on-tomcat.html

To be more specific, in the following lines:

As a last step we will restrict traffic on port 8080 and 8443 to local traffic only (you may want to define exceptions for port 8443 otherwise you won't be able to access the Solr4 web interface):

/sbin/iptables -A INPUT -p tcp -i eth0 --dport 8080 -j REJECT --reject-with tcp-reset
/sbin/iptables -A INPUT -p tcp -i eth0 --dport 8443 -j REJECT --reject-with tcp-reset