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Protect Your Web Apps with SafeLine: A Self-Hosted WAF

SafeLine is a self-hosted web application firewall designed to shield your web apps from various cyber threats. Perfect for developers and security teams.

security waf web-application-firewall golang application-security self-hosted reverse-proxy
Protect Your Web Apps with SafeLine: A Self-Hosted WAF

📦 Get Protect Your Web Apps with SafeLine: A Self-Hosted WAF

vmain· GNU General Public License v3.0· ⭐ 21.5K stars · Updated Jun 4, 2026

In today's digital landscape, web applications are constantly under threat from a myriad of attacks and exploits. Developers and security teams need robust solutions to safeguard their applications from vulnerabilities like SQL injection, XSS, and brute force attacks. Enter SafeLine, a self-hosted web application firewall (WAF) that not only protects your web apps but does so with a flexible, easy-to-manage setup.

What Is SafeLine?

SafeLine is a self-hosted WAF/reverse proxy designed to enhance the security of your web applications. By filtering and monitoring HTTP traffic between your web applications and the Internet, SafeLine acts as a shield against a variety of threats. It helps you manage and mitigate risks associated with common vulnerabilities, ensuring that your applications remain secure.

Key Features

  • Defenses for Web Attacks: SafeLine offers protection against various forms of attacks, including SQL injection, XSS, and RCE, ensuring your applications are safeguarded from potential threats.
  • Proactive Bot Abuse Defense: With advanced detection mechanisms, SafeLine identifies and mitigates bot-related attacks, preventing unauthorized access and abuse.
  • HTML & JS Code Encryption: SafeLine encrypts your HTML and JavaScript code, protecting your web assets from being easily tampered with or exploited.
  • IP-Based Rate Limiting: This feature allows you to set limits on requests from specific IP addresses, helping to thwart brute force and HTTP flood attacks.
  • Web Access Control List: Create custom rules to manage access to your web applications based on IP addresses, enhancing security based on your specific needs.
  • Real-Time Monitoring: SafeLine provides real-time monitoring of HTTP requests, allowing you to react promptly to any suspicious activity.
  • Easy Integration: Because it's self-hosted, you have complete control over your WAF setup, making it easy to integrate into your existing infrastructure.

Installation & Setup

Getting started with SafeLine is straightforward. Here are the steps to install and configure SafeLine on your server:

CODE
# Clone the repository
git clone https://github.com/chaitin/SafeLine.git

# Navigate to the SafeLine directory
cd SafeLine

# Build the project using Go
go build

# Run the server
./SafeLine --config config.yaml

Make sure you have Go installed (version 1.16 or higher) and follow the documentation for detailed configuration options.

How to Use It

Once your SafeLine server is running, you can start configuring it to protect your web applications. Here’s a practical example:

CODE
# In your config.yaml file:
server:
  port: 8080
  host: "0.0.0.0"

rules:
  - type: "sql_injection"
    action: "block"
  - type: "xss"
    action: "alert"

This configuration sets up SafeLine to listen on port 8080 and blocks SQL injection attempts while alerting you on XSS attempts. You can customize the rules based on your application’s specific needs.

Who Should Use SafeLine?

SafeLine is ideal for developers, security teams, and organizations looking to enhance the security of their web applications without relying on third-party solutions. If you manage web apps that handle sensitive data or are at risk of cyber threats, implementing SafeLine can provide you with peace of mind and robust protection.

Final Thoughts

As cyber threats evolve, having a reliable web application firewall like SafeLine is essential for any web application. Its self-hosted nature gives you the flexibility and control to tailor your security measures according to your needs. With a variety of features designed to combat numerous attack vectors, SafeLine stands out as an excellent choice for developers and security professionals alike. If you’re serious about securing your web apps, it’s time to give SafeLine a try.

ScriptForge Admin

Senior developer and curator of the ScriptForge platform. Specializing in PHP, Laravel, and full-stack JavaScript development.

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