Helpdesk

Here’s a step-by-step tutorial for installing Node.js on your AlmaLinux 8 VPS:

1. Update Your System

Before installing any software, it's a good practice to update your server:

 sudo dnf update -y

 

2. Install Development Tools

Install a set of development tools, including GCC (GNU Compiler Collection), which will be useful for compiling and building native add-ons:

sudo dnf groupinstall "Development Tools" -y

3. Install Node.js

You can install Node.js via the NodeSource repository. This ensures you're getting the latest LTS (Long Term Support) version.

1. Add the NodeSource repository by running the following command:

curl -sL https://rpm.nodesource.com/setup_20.x | sudo bash -

.   2.Install Node.js using:

sudo dnf install nodejs -y

4. Verify Installation

After installation, verify that Node.js and npm (Node package manager) are successfully installed:

node -v
npm -v

This should return the installed version of Node.js and npm.

5. Enable npm Global Installations

If you plan to install global npm packages without needing to use sudo, create a directory for global installations and configure npm to use it.

• Create a directory for globally installed packages:

mkdir ~/.npm-global

• Configure npm to use this directory for global installations:

npm config set prefix '~/.npm-global'

• Add this directory to your system's PATH by editing your shell profile:

echo 'export PATH=~/.npm-global/bin:$PATH' >> ~/.bashrc
source ~/.bashrc

6. Test Node.js by Creating a Simple Server

To confirm Node.js is working, create a simple test server:

• Create a new file called app.js:

nano app.js

• Add the following content:

const http = require('http');
const hostname = '0.0.0.0';
const port = 3000;

const server = http.createServer((req, res) => {
res.statusCode = 200;
res.setHeader('Content-Type', 'text/plain');
res.end('Hello World\n');
});

server.listen(port, hostname, () => {
console.log(`Server running at http://${hostname}:${port}/`);
});

• Run the app using Node.js:

node app.js

Now, in your browser, go to http://your_vps_ip:3000 and you should see "Hello World" displayed.

7. Install PM2 to Manage Node.js Application

PM2 is a process manager for Node.js that ensures your app stays running. Install it with:

sudo npm install pm2 -g

To start your Node.js app with PM2:

pm2 start app.js

That's it! You've successfully installed Node.js on your AlmaLinux 8 VPS. You can now deploy your Node.js apps and manage them with tools like PM2.