Nginx Beginner's Guide: Configuring an Accessible Web Server

### A Beginner's Guide to Nginx Nginx is a high-performance, lightweight web server/reverse proxy, ideal for high-concurrency scenarios. It features low resource consumption, flexible configuration, and ease of use. **Installation**: On mainstream Linux systems (Ubuntu/Debian/CentOS/RHEL), install via `apt` or `dnf`. Start and enable Nginx with `systemctl start/ enable nginx`, then verify with `systemctl status nginx` or by accessing the server's IP address. **Core Configuration**: Configuration files are located in `/etc/nginx/`, where `nginx.conf` is the main configuration file and `conf.d/` stores virtual host configurations. Create a website directory (e.g., `/var/www/html`), write an `index.html` file, and add a `server` block in `conf.d/` (specifying port 80 listening and the website directory). **Testing & Management**: After modifying configurations, use `nginx -t` to check syntax and `systemctl reload` to apply changes. Ensure port 80 is open (firewall settings) and file permissions are correct for testing access. Common commands include `start/stop/restart/reload nginx` and status checks. **Summary**