Use CRN VCP with Nginx Web Server

"Nginx is one of the most popular web servers in the world and is responsible for hosting some of the largest and highest-traffic sites on the internet. It is more resource-friendly than Apache in most cases and can be used as a web server or reverse proxy."

This guide (https://www.digitalocean.com/community/tutorials/how-to-install-nginx-on-ubuntu-18-04) explains how to install Nginx on your Ubuntu 18.04 server. The installation is straightforward and can be as simple as 

sudo apt update
sudo apt install nginx

Please refer to the guide for additional firewall and Nginx configuration (/etc/nginx/nginx.conf).  

When you have your Nginx Web Server start running, install your copy of CRN VCP (which you can obtain via the link) by running the command below. It takes about a few seconds with no user interaction needed. That is it, you do not need to restart the server or Apache service. 

tar xf crn*.tar; sudo crn/bin/install.sh

By default, CRN VCP will be the new system TCP for all the ports from 1 to 65535. In case that you only need CRN VCP to be the system TCP for Apache service port, e.g., ports 80 and 443, you just need to run one command as below:

sudo sysctl -w net.crn.vcp_ports=80,443

The TCP connections to other ports on the system such as sshd port 22 will still use the system default TCP.