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Arina Cholee
Arina Cholee

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Free and Fast: Why SafeLine is the Ultimate WAF for Your Website

#websecruity #cybersecruity #safeline #waf

As a web developer or site owner, you know that website security is non-negotiable. If you’ve ever built or managed a website, you've probably encountered the headache of trying to fend off malicious attacks. Today, I’m excited to share an awesome (and free!) tool that can help you secure your site in no time: SafeLine, a Web Application Firewall (WAF) that’s easy to deploy and packs a punch in terms of protection.

What is a WAF?

In case you're new to the world of web security, WAF stands for Web Application Firewall. Unlike traditional firewalls that focus on the network layer, a WAF operates on the application layer, which means it specifically protects against threats targeting the web application itself—things like SQL injections, cross-site scripting (XSS), and more. If you run a website or a web app, a WAF is a must-have to protect against the increasingly sophisticated attacks out there.

Introducing SafeLine

SafeLine is a free and easy-to-deploy WAF that provides an extra layer of security for your site. It works as a reverse proxy, meaning all traffic to your website passes through it, where it’s analyzed for malicious behavior. Built with cutting-edge semantic detection technology, SafeLine provides excellent protection with minimal impact on site performance.

Why Should You Care About SafeLine?

  • Easy to Use: No need to be a security expert. SafeLine is designed with developers in mind and has a simple setup process. It deploys in containers, and you can get it up and running with just one command.
  • Accurate Protection: SafeLine uses intelligent semantic analysis to detect attacks while minimizing false positives—meaning it catches real threats without tripping over normal traffic.
  • High Performance: Despite being lightweight, SafeLine can handle more than 2000+ transactions per second (TPS) on a single core, with a detection delay of just 1 millisecond. It’s fast and won’t slow down your site.
  • Reliable: SafeLine is built on the Nginx engine, ensuring rock-solid reliability and performance. Plus, it includes a health check feature for 99.99% availability.

How to Install SafeLine

Getting SafeLine up and running on your server is super simple, and it works on Linux systems (both Ubuntu and CentOS). Here’s how you can do it.

System Requirements

  • OS: Linux (x86_64)
  • Software: Docker (v20.10.14 or later), Docker Compose (v2.0.0 or later)
  • Minimum Specs: 1 CPU core, 1 GB RAM, 5 GB disk space

Installation Steps

  1. Open a terminal window.

  2. Run the following command to get started:

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

    That’s it! Once the script finishes, you’ll have SafeLine installed and ready to go.

Getting Started with SafeLine

After installation, open your browser and go to https://<your-ip>:9443 to access the SafeLine dashboard. From there, you can add your site and start monitoring its security.

SafeLine Dashboard

You can also reset the admin password with the following command:

docker exec safeline-mgt resetadmin

After the command is successfully executed, you will see the following content:

[SafeLine] Initial username：admin
[SafeLine] Initial password：**********
[SafeLine] Done

Enter the password in the previous step and you will successfully log into SafeLine.

From the dashboard, you can easily add sites for protection. To test SafeLine’s effectiveness, try simulating an attack:

SQL Injection Simulation: Visit http://<your-ip-or-domain>:<port>/?id=1%20AND%201=1

XSS Simulation: Visit http://<your-ip-or-domain>:<port>/?html=<script>alert(1)</script>

Give it a try today and keep your website safe with zero hassle.

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