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+# IP Pinger
+
+A simple Node.js web service that returns the client's IP address.
+
+## Installation
+
+```bash
+npm install
+```
+
+## Usage
+
+Start the server:
+
+```bash
+npm start
+```
+
+The service will run on port 3000 by default. Visit http://localhost:3000 to see your IP address.
+
+## Environment Variables
+
+- `PORT` - The port to run the service on (default: 3000)
+
+## How it works
+
+The service checks multiple sources to determine the client IP:
+1. `X-Forwarded-For` header (for proxies/load balancers)
+2. `X-Real-IP` header
+3. Socket remote address
+4. Connection remote address