NGINX PM2 VPS: Building a secure web application server

NGINX PM2 VPS: Building a Secure Web Application Server

With the development of the Internet, Web applications are becoming more and more important in our lives. In order to ensure the stability and security of our web application, we need a reliable web server. In this article, we will explain how to set up a secure web application server on a VPS using NGINX and PM2.

The first step is to choose a suitable VPS (Virtual Private Server) provider. A VPS is a virtual server that can be accessed and managed remotely via a network connection. Choosing a reliable VPS provider is very important as it will directly affect the performance and security of your web application. Some trusted VPS providers include DigitalOcean, Linode, and Vultr, among others. These providers offer fast and stable servers while also providing secure network connections and data transfers.

Once we have chosen the right VPS provider, we need to choose a VPS plan that suits our needs. Depending on the size of your web application and the expected traffic, it is important to choose the appropriate VPS plan. Generally speaking, a VPS with more RAM and processor cores will be able to handle greater traffic. In addition, you also need to pay attention to storage space and bandwidth limitations.

After choosing the right VPS plan, the next step is to choose the appropriate operating system. For web servers, a common choice is to use the Linux operating system because Linux has good performance and security, and there are many excellent web server software to choose from. In this article, we will use Ubuntu as our operating system.

Now, we can start installing and configuring our web application server. First, we need to install and configure NGINX as our web server. NGINX is a high-performance HTTP server and reverse proxy server that can handle large numbers of concurrent connections while also providing security features such as DDoS protection and SSL encryption.

Here are the steps to install and configure NGINX on Ubuntu:

1. Update system software sources:

   sudo apt update

2. Install NGINX :

   sudo apt install nginx

3. Configure the firewall to allow HTTP and HTTPS traffic:

   sudo ufw allow 'Nginx Full'

4. Start the NGINX service:

   sudo systemctl start nginx

5. Configure NGINX to start automatically:

   sudo systemctl enable nginx

After installing and configuring NGINX, we need to install PM2 as our process management tool. PM2 allows us to manage our Node.js applications more easily and provides some additional features such as process monitoring and automatic restart.

Here are the steps to install and configure PM2 on Ubuntu:

1. Install Node.js and npm:

   sudo apt install nodejs npm

2. Install PM2:

   sudo npm install pm2 -g

3. Start your Node.js application:

   pm2 start app.js

4. Configure PM2 to start automatically:

   pm2 startup systemd
   sudo env PATH=$PATH:/usr/bin pm2 startup systemd -u your_user --hp /home/your_user

After installing and configuring PM2, our web application server is ready. We can now access our web application and make sure everything is running properly. At the same time, we can also configure SSL certificates through NGINX to provide encrypted connections for our web applications.

In order to ensure the security of our web application, we also need to take some additional security measures. For example, we can use token-based authentication to secure our API endpoints. We can also use WAF (Web Application Firewall) to filter and block malicious traffic. In addition, it is also very important to regularly update the software on the server to ensure that our web applications are protected from known vulnerabilities.

To summarize, building a secure web application server on a VPS is very simple and effective by using NGINX and PM2. We need to choose the right VPS provider and plan, install and configure NGINX and PM2, and take additional security measures to protect our web applications. With these steps, we can ensure that our web application is in good shape in terms of performance and security.

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