Steps to get up and running with node js server using nginx reverse proxy

gistfile1.txt

sudo apt-get install finger
sudo apt-get install openssh-server openssh-client
change ssh port if necessary: /etc/ssh/sshd_condig
sudo adduser student

#Give Sudo Privilages to the new user 
visudo

# User privilege specification
newuser    ALL=(ALL:ALL) ALL

#Install nodejs server and manage it using nginx
sudo apt-get update
sudo apt-get install ng

#Configure the firewall
-- registed applist on nginx 

sudo ufw app list
sudo ufw allow ssh
sudo ufw allow 'Nginx HTTP'
sudo ufw enable
systemctl status nginx
ip addr show // check ip addr and ping to see if the nginx page is up and running.


#Mange Nginx process 
sudo systemctl stop nginx
sudo systemctl start nginx
sudo systemctl restart nginx
sudo systemctl reload nginx
sudo systemctl disable nginx
sudo systemctl enable nginx

#configure server block
By Default Server block on ubuntu: /var/www/html
sudo mkdir -p /var/www/example.com/html
sudo mkdir -p /var/www/test.com/html

#change permission of the directory
sudo chown -R $USER:$USER /var/www/example.com/html
sudo chown -R $USER:$USER /var/www/test.com/html
sudo chmod -R 755 /var/www

#assign html files 
nano /var/www/example.com/html/index.html
nano /var/www/test.com/html/index.html

#create server blocks to tell nginx on how and when to serve these pages.
sudo cp /etc/nginx/sites-available/default /etc/nginx/sites-available/example.com


server {
        listen 80;
        listen [::]:80;

        root /var/www/example.com/html;
        index index.html index.htm index.nginx-debian.html;

        server_name example.com www.example.com;

        location / {
                try_files $uri $uri/ =404;
        }
}



#Enable your Server Blocks and Restart Nginx

sudo ln -s /etc/nginx/sites-available/example.com /etc/nginx/sites-enabled/
sudo ln -s /etc/nginx/sites-available/test.com /etc/nginx/sites-enabled/

sudo nano /etc/nginx/nginx.conf
server_names_hash_bucket_size 64; //uncomment the line to avoid hash bucket memory problem 
sudo nginx -t // check for nginx error if it is ok move forward...
sudo systemctl restart nginx

#NODE JS PROJECT SETUP AND SERVE

#Install Node.js
cd ~
curl -sL https://deb.nodesource.com/setup_6.x -o nodesource_setup.sh
sudo bash nodesource_setup.sh
sudo apt-get install nodejs
sudo apt-get install build-essential


#Install mongodb as a service
https://docs.mongodb.com/manual/tutorial/install-mongodb-on-ubuntu/





||| TO SHUTDOWN THE SERVER |||
shutdown -h 5 // shut it down after 5 mins 
shutdown -h now // now