Looking for a powerful open-source tool to protect your personal website? Meet SafeLine, a WAF (Web Application Firewall) that has already garnered 11.5K stars on GitHub. In this article, I’ll show you how to arm your site against hackers using SafeLine in just 3 minutes.

Website: https://waf.chaitin.com

SafeLine is built on industry-leading semantic detection technology and acts as a reverse proxy to safeguard your site from cyber threats. Here are some of SafeLine’s key features:

• Ease of Use: With containerized deployment, installation is a breeze—just one command, and you're set. Zero learning curve.
• Security: SafeLine's cutting-edge intelligent semantic analysis algorithm ensures precise detection, low false positives, and makes it tough for attackers to bypass.
• High Performance: Featuring a signature-free engine and linear security detection algorithm, the average request detection delay is in the millisecond range.
• High Availability: The traffic processing engine is based on Nginx, with a robust health check mechanism to ensure reliability.

01. Installing SafeLine
Using SafeLine to fortify your website is incredibly straightforward. Just run the following command on a Linux server (not the one hosting your website):

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

In under 3 minutes, SafeLine will be installed. Once complete, you can access the SafeLine console by opening your browser and navigating to https://<safeline-ip>:9443/.

02. Configuring Your Site
After opening the console, you can configure the address of the site server you want to protect under the protection site settings. Once in protection mode, your site will be shielded from most malicious attacks.

03. Staying Safe

SafeLine protects your site by filtering and monitoring traffic. It can defend against a wide range of attacks, including SQL injection, XSS, code injection, command injection, CRLF injection, LDAP injection, XPath injection, web crawlers, and more.

When a would-be attacker tries to breach your site, they’ll be met with an interception notice, ensuring their attempt is unsuccessful.

Reviewing Attack History:

You can then log into the SafeLine console to view all intercepted attacks, including the methods used and the IP addresses of the attackers.

SafeLine has been installed over 180,000 times, protecting more than 1 million websites, and processing over 30 billion HTTP requests daily.

Check it out on GitHub: https://github.com/chaitin/SafeLine