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Nginx Reverse Proxy

NGINX Reverse Proxy on Port 80 with llm.com​

Note: This will work only on your current system under your network, but this can save you from typing 192....230:8080 for accessing your locally hosted app.

1. Stop and Disable any apps working on Port 80 (this port is normally used for web communication)​

For my case, Apache2 was running on Port 80

sudo systemctl stop apache2
sudo systemctl disable apache2

2. Install Nginx (if not already installed)​

sudo apt update
sudo apt install nginx -y

3. Configure /etc/hosts for Local Domain Resolution​

This tells your system to resolve llm.com locally.

sudo nano /etc/hosts

Add the line 127.0.0.1 llm.com

If you're on a different machine than the one running Nginx, use the Nginx server's IP instead.

4. Create a Reverse Proxy Config for llm.com​

Create a new config file:

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

Paste this config:

server {
    listen 80;
    server_name llm.com;

    location / {
        proxy_pass http://192.168.1.230:8080;  # replace with your app's actual 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;
    }
}

5. Enable the Config​

Link it into sites-enabled:

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

Optional:

Remove the default site to avoid conflicts:

sudo rm /etc/nginx/sites-enabled/default

6. Test Nginx Config and Restart​

Check for syntax errors:

sudo nginx -t

If it says syntax is ok and test is successful, then restart Nginx:

sudo systemctl restart nginx

7. Visit Your App​

Open your browser and go to http://llm.com

It should show the app running on 192.168.1.230:8080, now proxied cleanly by Nginx!

8. Add More Apps​

Add More Domains Easily by repeating steps 4–7 with new configs, example:

dbui.com → 192.168.1.231:3000

adminportal.com → 192.168.1.232:5000

Each with their own file in /etc/nginx/sites-available/ and an entry in /etc/hosts