Advanced Tutorial: Optimizing VPS Server Performance with NGINX and PM2

Advanced Tutorial: Using NGINX and PM2 to Optimize the Performance of VPS Servers

Abstract:
With the development of the Internet, more and more people choose to convert their websites to Deployed on VPS server. However, as website traffic grows, server performance can become an issue. This article will introduce how to use NGINX and PM2 to optimize the performance of the VPS server and provide specific code examples.

Introduction:
VPS server is a relatively low-cost and flexible option, so it is becoming increasingly popular in website deployment. However, once a website starts to attract a large number of visitors, optimization of server performance becomes very important. In this case, using a combination of NGINX and PM2 is a common solution. NGINX is a high-performance web server and reverse proxy server, while PM2 is a powerful process management tool.

Step 1: Install NGINX
First, we need to install NGINX. Use the following command to install NGINX on Ubuntu:

$ sudo apt-get update
$ sudo apt-get install nginx

After the installation is complete, we can use the following command to start NGINX:

$ sudo systemctl start nginx

Step 2: Configure NGINX
Next, we need to configure NGINX to improve performance. Open the NGINX configuration file and make the following changes:

$ sudo nano /etc/nginx/nginx.conf

Find and uncomment the following line:

worker_processes auto;

Change the following parameters to values ​​appropriate for your server:

worker_connections 4096;

Save and Close the file. Then reload the NGINX configuration:

$ sudo systemctl reload nginx

Step Three: Install PM2
Now, we will install and configure PM2 to manage our application. First, install PM2 globally using npm:

$ sudo npm install pm2 -g

Once the installation is complete, we can start a Node.js application using the following command:

$ pm2 start app.js

Where app.js is the Node you want to start .js application entry file. Use the following command to view running applications:

$ pm2 list

Step 4: Set PM2 to start automatically
In order to make PM2 automatically start our application after the server restarts, we need to set up the PM2 self-start script. Use the following command to generate a self-starting script:

$ pm2 startup

Then, execute the generated command according to the prompts. After running, restart the server to confirm whether the auto-start script is working properly.

Conclusion:
By using NGINX and PM2, we can effectively optimize the performance of the VPS server. As a reverse proxy server, NGINX can provide high-performance static file services and schedule requests to improve website responsiveness. PM2 is a powerful process management tool that ensures that applications are always running and start automatically after the server is restarted. By following the steps in this article and adjusting accordingly to your needs, you will be able to provide better performance to your VPS server.

Note: The following is a complete NGINX and PM2 configuration file example for reverse proxy and load balancing of a Node.js application:

events {
  worker_connections  4096;
}

http {
  upstream app {
    server 127.0.0.1:3000;
    server 127.0.0.1:3001;
    server 127.0.0.1:3002;
  }

  server {
    listen 80;
    server_name example.com;

    location / {
      proxy_pass http://app;
      proxy_http_version 1.1;
      proxy_set_header Upgrade $http_upgrade;
      proxy_set_header Connection 'upgrade';
      proxy_set_header Host $host;
      proxy_cache_bypass $http_upgrade;
    }
  }
}

Please adjust according to your server and application The program needs to be modified accordingly.

The above is the detailed content of Advanced Tutorial: Optimizing VPS Server Performance with NGINX and PM2. For more information, please follow other related articles on the PHP Chinese website!