🔀 Reverse Proxy with NGINX, Load Balancing & Multiple Domains

A practical Docker Compose project for learning how to set up NGINX as a reverse proxy, load balancer, and support for multiple domains under a single IP address.

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📌 About

This project demonstrates a basic infrastructure setup using:

• NGINX for reverse proxy and load balancing
• Docker Compose to orchestrate multiple services
• Multiple domain support (e.g., site1.localhost.com, site2.localhost.com)
• PHP-FPM support for PHP-based web applications

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🧪 Purpose

The goal is to provide a simple yet functional environment to study:

• Reverse proxy configuration
• Load balancing between containers
• Hosting multiple domains on one IP
• Forwarding real client IPs from NGINX to containers

⚠️ This is not production-ready. It’s built for study and experimentation.

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🧭 Domain Configuration

You need to point the following addresses to the IP of your host machine.
If you're running Docker locally, use localhost as the IP.

    127.0.0.1	    localhost
    ::1             localhost
    192.168.70.10   site3.localhost.com
    192.168.70.10   site2.localhost.com
    192.168.70.10   site1.localhost.com

🚀 Usage

1. Clone the repository:

git clone https://github.com/abd0hrz/docker-compose-nginx-loadbalance-multiple-domains.git
cd nginx-multi-domain-lb

2. Start the containers:

docker-compose up -d

3. Visit your domains in the browser:

http://site1.localhost.com

http://site2.localhost.com

http://site3.localhost.com