nG Firewall: Advanced Security for Apache and Nginx Servers

In today’s digital landscape, website security is a constant challenge. Sites are under 24/7 attack, from spam and brute-force attempts to sophisticated threats like code injection and distributed denial-of-service (DDoS) attacks. nG Firewall emerges as a powerful and lightweight solution that enhances server security while maintaining optimal performance.

Server-Level Protection Without Performance Loss

Unlike traditional security solutions that rely on PHP plugins or scripts, nG Firewall operates at the server level, blocking malicious requests before they reach backend processes like PHP or MySQL. This approach not only prevents attacks like SQL injection, XSS, HTTP response splitting, and cache poisoning but also frees up server resources, ensuring faster response times for legitimate traffic.

For Apache servers, implementation is straightforward—just add the rules to your website’s .htaccess file. For Nginx servers, the setup requires a more technical configuration.

Key Features of nG Firewall

Built on over a decade of research and fine-tuning, nG Firewall offers:

• Simplified security with zero configuration required.
• Comprehensive protection against a wide range of cyber threats.
• Performance optimization by reducing server load.
• Compatibility with any website, regardless of CMS (WordPress not required).
• Open-source and completely free for all users.

Additionally, nG Firewall supports all HTTP request methods (GET, POST, PUT, DELETE), providing robust defense against automated threats and bot-driven attacks.

Requirements and Deployment

To deploy nG Firewall on an Apache server, the following requirements must be met:

• Apache server with mod_rewrite enabled.
• Access to the .htaccess file or server configuration file.

The installation process involves:

1. Download nG Firewall from the official website.
2. Backup your existing .htaccess file to prevent conflicts.
3. Copy and paste the nG rules into your .htaccess file.
4. Save the changes and upload the updated file to your server.
5. Run tests to ensure proper functionality.

For Nginx servers, the setup process requires configuring directives manually within the server configuration file.

Advanced Threat Detection and Protection

nG Firewall provides security against a wide range of cyber threats, including:

• WordPress vulnerability exploits (timthumb, fckeditor).
• PHP shell injections (c99shell, r3vn330, sux0r).
• Remote file inclusion and injection attacks.
• Automated bot traffic, spam, and malicious crawlers.
• SQL injection and command execution attempts.
• HTTP header manipulation attacks and security bypass exploits.

For enhanced protection, nG Firewall can be integrated with ModSecurity, providing an additional layer of defense for high-risk environments.

Continuous Evolution and Optimization

Each iteration of nG Firewall is built on real-world testing and community feedback, ensuring constant updates against emerging cyber threats. Its modular and flexible architecture allows for seamless rule adjustments without impacting performance.

For those looking to further enhance their website’s security, the BBQ: Block Bad Queries plugin—which integrates nG Firewall’s core technology—provides an extra layer of defense for WordPress users.

Final Thoughts

nG Firewall is one of the most effective ways to mitigate security threats without compromising site speed. Its mod_rewrite-based approach ensures that malicious traffic is blocked before it can reach critical backend processes, making it an ideal solution for web administrators seeking a lightweight, reliable, and free security framework.

With ongoing updates, community-driven improvements, and seamless integration, nG Firewall stands as a top-tier choice for securing Apache and Nginx servers against modern cybersecurity threats.