How to Set Up Nginx as a Reverse Proxy Server for PM2 on Ubuntu 24.10

To set up Nginx as a reverse proxy server for PM2 on Ubuntu 24.10, follow these steps:

Step 1 : Run the following command to install Nginx:

sudo apt update
sudo apt install nginx

Step 2 : Create a new configuration file for your app:

sudo nano /etc/nginx/sites-available/example.com

Add the following configuration:

server {
    listen 80;
    server_name example.com;

    location / {
        proxy_pass http://localhost:3000;
        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;
    }
}

Step 3 : Create a symbolic link to enable the configuration:

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

Step 4 : Check the Nginx configuration for errors:

sudo nginx -t

Step 5 : Restart Nginx to apply the changes:

sudo systemctl restart nginx

Step 6 : If using UFW, allow Nginx traffic

sudo ufw allow 'Nginx Full'

Step 7 : Visit http://example.com in your browser to verify that the reverse proxy is working.

Congratulations! You have successfully set up Nginx as a reverse proxy server for PM2 on Ubuntu 24.10.