This guide will help you set up Nginx as a reverse proxy for your virtual server. Follow the steps below:

Step 1: Create an A Record

First, you’ll need to create an A record in your domain’s DNS settings. This record should point your domain (e.g., example.com) to the IP address of your virtual server.

Step 2: Install and Configure Nginx

1. Update your package list and install Nginx:
   

   sudo apt update
   sudo apt install nginx

   
   
2. Navigate to the Nginx configuration directory:
   

   cd /etc/nginx/sites-available

   
   
3. Create a new reverse proxy configuration file:
   

   Open a new configuration file with a text editor:

   sudo nano reverse-proxy.conf

   
   
4. Add the following configuration to set up the reverse proxy:
   

   server {
       listen 80;
       server_name example.com *.example.com;
   
       access_log /var/log/nginx/reverse-access.log;
       error_log /var/log/nginx/reverse-error.log;
   
       location / {
           proxy_pass http://127.0.0.1:5001;  # Replace with your application's IP and port
           proxy_set_header Host $host;
           proxy_set_header X-Real-IP $remote_addr;
           proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
           proxy_set_header X-Forwarded-Proto $scheme;
       }
   }

   
   

   Change example.com and the port number in the proxy_pass line as required for your application.

   
   
5. Save the file:
   • Press Ctrl + X to exit the editor.
   • Press Y to confirm changes.
   • Press Enter to save the file.
6. Enable the configuration by creating a symbolic link to the sites-enabled directory:
   

   sudo ln -s /etc/nginx/sites-available/reverse-proxy.conf /etc/nginx/sites-enabled/

   
   
7. Test the Nginx configuration for syntax errors:
   

   sudo nginx -t

   
   
8. Restart Nginx to apply the changes:
   

   sudo service nginx restart

   
   

This guide will set up Nginx as a reverse proxy for your application, allowing it to handle incoming requests and forward them to your application server. Make sure to replace the domain and port details to match your specific setup.