nginx listens to forward different applications on the same port

Nginx can be configured to listen to the same port and forward traffic to different applications based on request: create a virtual host configuration, specify the port and server name. Use the proxy_pass directive to set the forwarding target in the location block. Start a different application and make sure it is listening for incoming connections. Test the configuration, navigate to a different server name to verify traffic forwarding.

Nginx configures to listen to the same port forward different applications

Nginx is a powerful web server and reverse proxy that can be configured to listen to the same port and forward traffic to different applications based on request.

Implementation steps:

1. Create a virtual host configuration:

   • Open the nginx.conf file.
   • Add the following virtual host configuration:

    <code>server { listen 80; server_name example.com; location / { proxy_pass http://127.0.0.1:8080; } } server { listen 80; server_name www.example.com; location / { proxy_pass http://127.0.0.1:8081; } }</code>

   • In this example, Nginx will listen to port 80 and forward the request to a different application on port 8080 or 8081 based on the server name.

2. Set up the reverse proxy:

   • Make sure Nginx is installed and running.
   • In location block, use proxy_pass directive to specify the forwarding target.
   • You can also add other proxy settings such as caching and load balancing.

3. Set up the application:

   • Start different applications on ports 8080 and 8081.
   • Make sure the application is listening for incoming connections.

4. Test configuration:

   • Navigate to http://example.com, which should redirect you to the application running on port 8080.
   • Navigate to http://www.example.com, which should redirect you to the application running on port 8081.

advantage:

• Centralized management: Nginx configuration allows you to manage forwarding rules for all applications in a single configuration file.
• Scalability: You can easily add or delete applications without reconfiguring your web server.
• Load Balancing: By setting load balancing options in Nginx, you can spread traffic across multiple application instances.

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