When you launch a website, the first challenge you may encounter might not come from your customers, but from threats lurking online. That’s why we’re introducing SafeLine, an open-source Web Application Firewall (WAF) that’s quickly becoming a favorite on GitHub. SafeLine is designed to shield your website from malicious attacks, ensuring that your online presence remains secure.

What is SafeLine?

SafeLine is a free and powerful WAF, built with simplicity in mind. It uses advanced semantic detection technology to guard against common web attacks like SQL injections and cross-site scripting (XSS). Operating as a reverse proxy, SafeLine intelligently filters traffic, blocking malicious activities before they can reach your web servers.

For more information, visit the SafeLine Documentation.

How Does SafeLine Work?

SafeLine functions as a reverse proxy, intercepting and analyzing incoming traffic before it reaches your servers. By filtering out harmful requests, SafeLine helps keep your site secure from potential breaches.

Installation Guide

Before installing SafeLine, ensure your system meets these requirements:

• OS: Linux
• Architecture: x86_64
• Dependencies: Docker 20.10.6+ / Docker Compose 2.0.0+
• Minimum Specs: 1 core CPU, 1 GB RAM, 5 GB disk space

Automatic Installation:

To install SafeLine quickly, use the one-click script provided:

bash -c "$(curl -fsSLk https://waf.chaitin.com/release/latest/setup.sh)"

Once SafeLine is installed, you can access it via your web browser at https://127.0.0.1:9443/.

Getting Started with SafeLine

After installation, log into SafeLine’s management interface to configure your sites. For optimal performance, we recommend deploying SafeLine on a server that’s separate from your main application.

Dynamic Protection Features

This feature is crucial for safeguarding your frontend code, preventing web crawling, and blocking vulnerability scans.

Advanced Site Protection

SafeLine also offers advanced security features, such as blacklisting, whitelisting, CAPTCHA, and identity verification, to strengthen defenses against automated threats.

Key Features of SafeLine

• Ease of Use: SafeLine is containerized for easy deployment and maintenance with minimal effort.
• Security: Its intelligent semantic analysis algorithms offer precise detection with low false positives, adapting to unknown 0-day attacks.
• Performance: SafeLine delivers high throughput with low latency, handling over 2000 TPS on a single core.
• Reliability: Built on Nginx, SafeLine is stable and includes robust health checks to ensure 99.99% service availability.

Conclusion

SafeLine is an exceptional WAF solution, especially as an open-source project. It offers a robust set of features that cater to the security needs of both individuals and enterprises. If you’re looking for a cost-effective WAF, the community edition of SafeLine is definitely worth exploring.

• Website: SafeLine Website
• GitHub: SafeLine on GitHub
• Discord: Join SafeLine on Discord