Nginx Logging & Metrics
Configure Nginx access and error logs, and explore methods to extract metrics for monitoring and analysis.
Why Nginx Logs Matter
Nginx logs are vital for understanding your server's activity and health. They record every request and any issues that occur.
Think of them as your server's diary. By reviewing these logs, you can monitor performance, troubleshoot errors, identify security threats, and gather valuable usage metrics.
Understanding Access Logs
Access logs record every request Nginx processes. Each line details a single client request, providing insights into who accessed what, and when.
- Client IP: Who made the request.
- Request method & URL: What was requested.
- Status code: Was it successful (200), an error (404, 500), etc.?
- Response size: How much data was sent back.
- User-Agent: The client's browser/device.