1. sudo apt-get update
2. sudo apt-get install nginx
3. systemctl status nginx
4. ls /etc/nginx/
5. vi /etc/nginx/nginx.conf (just to see all config)
6. sudo vi /etc/nginx/sites-available/default

upstream project { server 192.168.31.102:3000; server 192.168.31.103:3000; server 192.168.31.104:3000; } server { listen 80; location / { proxy_pass http://project; } }

7. sudo systemctl reload nginx

1. sudo apt-get update
2. sudo apt-get install build-essential libssl-dev
3. curl -sL https://raw.githubusercontent.com/creationix/nvm/v0.33.8/install.sh -o install_nvm.sh
4. vi install_nvm.sh
5. bash install_nvm.sh
6. source ~/.profile

NVM Commands: nvm ls-remote nvm install 10.16.0 nvm use 10.16.0 nvm list nvm alias default 10.16.0 nvm use default

1. sudo apt-get install apache2-utils
2. sudo vi /etc/nginx/sites-available/default (comment out 2 server to check the load in 1 server only)
3. sudo systemctl reload nginx
4. ab -c 40 -n 1000 http://192.168.31.101/ (took 13 sec to finish)
5. sudo vi /etc/nginx/sites-available/default (revert the changes and uncomment all to check load in all the server)
6. sudo systemctl reload nginx
7. ab -c 40 -n 1000 http://192.168.31.101/ (took 8 sec to finish)

1. sudo vi /etc/nginx/sites-available/default

upstream node_cluster { server 192.168.31.102:3000; # Node.js instance 1 server 192.168.31.103:3000; # Node.js instance 2 server 192.168.31.104:3000; # Node.js instance 3 } server { listen 80; server_name mynodedomain.dev www.mynodedomain.dev; location / { proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header Host $http_host; proxy_set_header X-NginX-Proxy true; proxy_pass http://node_cluster/; proxy_redirect off; } location ~* \.(css|js|gif|jpe?g|png)$ { expires 168h; } }

2. sudo systemctl reload nginx
3. ab -c 40 -n 1000 http://192.168.31.101/stylesheets/style.css (took 0.215 sec to finish)

Note: All four boxes are running on ubuntu machine. I install nginx on 192.168.31.101 and all 3 node.js app is running on 192.168.31.102, 192.168.31.103 and 192.168.31.104 machine resp. Port is same for all 3 node app i.e 3000. After configuration we can see it in action from box1(192.168.31.101).