Creating an account with DigitalOcean.
During creating a droplet, generate an SSH Key Pair after Open a terminal.
Run the command to generate a new SSH key pair:
ssh-keygen -t rsa -b 4096 -C "example@gmail.com"
When prompted, save and name the key (press Enter to use the default location /Users/USER/.ssh/id_rsa).
Create and confirm a passphrase for the key (recommended for security).
This will generate two files: id_rsa and id_rsa.pub.
Add the Public Key
Display the public key using:
cat ~/.ssh/id_rsa.pub
Copy the displayed public key.
Paste the public key into the SSH key content field on the platform or service where it's required (e.g., GitHub, Bitbucket).
Login using the root or default user of the server
Open terminal
ssh root@server_IP
Create a New User on Ubuntu
Open a terminal on your Ubuntu server.
Add a new user:
adduser username
Add the new user to the sudo group to grant administrative privileges:
usermod -aG sudo username
Test New User's Login
Switch to the new user:
su - username
Now we will use sudo before any command
Update and Upgrade Packages
Update the package lists:
sudo apt update
Upgrade the installed packages:
sudo apt upgrade
Setting Up a Firewall
If your domain is registered, then both OpenSSH and Nginx Full will run. Otherwise, only Nginx HTTP will run. In Nginx Full mode, both HTTP and HTTPS are available.
ufw app list
ufw allow OpenSSH
ufw enable
ufw status
Install Node.js
Run the command to download and execute the Node.js setup script:
curl -fsSL https://deb.nodesource.com/setup_21.x | sudo -E bash -
Install Node.js:
sudo apt-get install -y nodejs
Verify the Node.js installation:
node --version
npm -version
Install Nginx
sudo apt install nginx
Test the Nginx configuration:
sudo nginx -t
Start Nginx:
sudo systemctl start nginx
Go into a /var/www directory:
sudo cd /var/www
Create a new folder named project-name
sudo mkdir project-name
Give sudo username permissions to this newly created folder.
sudo chown -R username: username /var/www/project-name
Create a frontend folder project.com
sudo mkdir project.com
create a backend folder named api.project.com
sudo mkdir api.project.com
create a admin folder named admin.project.com
sudo mkdir admin.project.com
Clone your repository of frontend, backend and admin in the required folder:
First, go to the frontend folder name project.com
sudo cd /var/www/project-name/project.com
Run command to clone frontend repo
git clone <repo-url> .
Now after cloning the frontend
npm install
sudo nano .env
Extra step for react folder
npm run build
Now to the backend folder name api.project.com
sudo cd /var/www/project-name/api.project.com
Run command to clone backend repo
git clone <repo-url> .
Now after cloning the backend
npm install
sudo nano .env
Now go to the admin folder name admin.project.com
sudo cd /var/www/project-name/admin.project.com
Run command to clone admin repo
git clone <repo-url> .
Now after cloning the admin
npm install
sudo nano .env
Extra step for react folder
npm run build
Configure Nginx for the project.com ( frontend )
Create and edit the Nginx server block file for your project.com:
sudo nano /etc/nginx/sites-available/project.com
Insert the server block configuration as needed (use the provided example and adjust accordingly).
#. frontend project.com
server {
listen 80;
server_name domain.com www.domain.com or server_ip;
location / {
root /var/www/project.com/build;
index index.html;
try_files $uri $uri/ /index.html;
# Ensure React Router works correctly
}
location /backend/ {
proxy_pass http://localhost:8000;
# 8000 is the backend app port
# Add other proxy-related settings if needed
}
}
Enable the site by creating a symbolic link:
sudo ln -s /etc/nginx/sites-available/project.com /etc/nginx/sites-enabled/
Test the Nginx configuration:
sudo nginx -t
Restart Nginx:
sudo systemctl restart nginx
Configure Nginx for the API
Create and edit the Nginx server block file for your project.com:
sudo nano /etc/nginx/sites-available/api.project.com
Insert the server block configuration as needed (use the provided example and adjust accordingly).
#. backend api.project.com
server {
listen 80;
server_name api.domain.com ;
location / {
proxy_pass http://localhost:8000;
# Add other proxy-related settings if needed
}
}
Enable the site by creating a symbolic link:
sudo ln -s /etc/nginx/sites-available/api.project.com /etc/nginx/sites-enabled/
Test the Nginx configuration:
sudo nginx -t
Restart Nginx:
sudo systemctl restart nginx
If you have admin
Configure Nginx for the admin
Create and edit the Nginx server block file for your admin.project.com:
sudo nano /etc/nginx/sites-available/admin.project.com
Insert the server block configuration as needed (use the provided example and adjust accordingly).
# Admin admin.project.com
server {
listen 80;
server_name admin.domain.com or server_ip;
location / {
root /var/www/html/admin.project.com/build;
index index.html;
try_files $uri $uri/ /index.html;
# Ensure React Router works correctly
}
# Add other location blocks if needed for specific configurations
# If you have a backend for the admin panel, you can configure it here
# location /admin-backend/ {
# proxy_pass http://localhost:admin_backend_port;
# # Add other proxy-related settings if needed
# }
}
Enable the site by creating a symbolic link:
sudo ln -s /etc/nginx/sites-available/admin.project.com /etc/nginx/sites-enabled/
Test the Nginx configuration:
sudo nginx -t
Restart Nginx:
sudo systemctl restart nginx
Install PM2 to Manage Your Node.js Application
Install PM2
sudo npm install pm2 -g
Start Your Application with PM2
pm2 start api.project.com/server.js
search your domain or server IP address on Google
whenever you update the code
log in using your root
then
su - username ( If you have sudo user )
username = > new user you have created
then go to the frontend project.com folder run git pull and if any new package is installed then run the command
npm install
and then make a new build if any change in code like in env change or code change, make a new build.
after that for the backend just pull the code and npm install, pm2 restart and nginx restarts.
How to Enable free SSL in Your Domain Hosted on Remote Server or VPS ( only on domain if you have, not in server_ip )
Install Certbot and it’s Nginx plugin
sudo apt install certbot python3-certbot-nginx
Verify Web Server Ports are Open and Allowed through Firewall
sudo ufw status verbose
Obtain an SSL certificate
sudo certbot --nginx -d your_domain.com -d www.your_domain.com -d api.your_domain.com -d admin.your_domain.com -d www.admin.your_domain.com
Check Status of Certbot
sudo systemctl status certbot.timer
Dry Run SSL Renewal
sudo certbot renew --dry-run
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