When launching a website, one of the first challenges you might face isn't from your customers but from potential attacks lurking on the internet. That's why today, we're introducing SafeLine, an open-source Web Application Firewall (WAF) that has quickly become the number one choice on GitHub. SafeLine is designed to protect your website from hacker attacks, ensuring that your online presence remains secure.

What is SafeLine?

SafeLine is a free and powerful WAF designed with simplicity in mind. It uses advanced semantic engine detection technology to provide top-notch protection against common web attacks like SQL injections and cross-site scripting (XSS). Operating as a reverse proxy, SafeLine intelligently analyzes traffic, filtering out malicious activities before they can reach your web servers.
https://docs.waf.chaitin.com/en/home

How Does SafeLine Work?

SafeLine intercepts traffic via a reverse proxy setup, examining and cleansing it before forwarding it to your web servers. This ensures that any harmful traffic is blocked, safeguarding your site from potential breaches.

Installation Guide

To install SafeLine, ensure your system meets the following 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:

Use the one-click script provided by the project:

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

Manual Installation:

For manual setup, ensure Docker is installed and follow these steps:

Create SafeLine Directory:
```
mkdir -p "/data/safeline"
```

Download compose.yaml:

cd "/data/safeline"
wget "https://waf-ce.chaitin.cn/release/latest/compose.yaml"

Create .env File:

Set up a .env configuration file with necessary details.
Start Services:
```
docker compose up -d
```

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

Getting Started with SafeLine

After installation, log in to SafeLine's management interface to configure your sites. It's recommended to deploy SafeLine on a dedicated server, separate from your main application, to avoid potential performance issues.

Test SafeLine's defenses by simulating common web attacks like SQL injection or XSS to ensure it's properly intercepting and blocking threats.

Dynamic Protection Features

The latest release of SafeLine introduces dynamic protection, which adds variability to your web pages while keeping their appearance unchanged for users. This feature helps protect frontend code, prevents web crawling, and blocks vulnerability scanning attempts.

Advanced Site Protection

SafeLine also offers advanced security configurations, such as blacklisting, whitelisting, CAPTCHA, and identity verification, to enhance protection against automated threats.

Key Features of SafeLine

Ease of Use: Deployed via containerization, SafeLine is easy to install and maintain with minimal effort.
Security: Employs intelligent semantic analysis algorithms for precise detection and low false positives, adapting to unknown 0-day attacks.
Performance: High throughput with low latency, capable of handling over 2000 TPS on a single core.
Reliability: Built on Nginx for stability and includes robust health checks for 99.99% service availability.

Conclusion

SafeLine stands out as a top-tier WAF solution. As an open-source project, it offers a comprehensive set of features that can meet the security needs of both individuals and enterprises. If you're in the market for a WAF and want a cost-effective option, the community edition of SafeLine is definitely worth considering.

Project Information:

Website: https://waf.chaitin.com
GitHub: https://github.com/chaitin/SafeLine
Discord: https://discord.gg/3aRJ4qfwjA

Protect Your Website with SafeLine: The Leading Open-Source Web Application Firewall