L7 Filter

L7 Filter

L7 Filter is an open-source web application firewall that protects web servers from attacks. It analyzes network traffic at OSI layer 7 to block SQL injections, cross-site scripting, and other web attacks.
Security & Privacy Web Application Firewalls
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L7 Filter alternatives ➤

L7 Filter: Open-Source Web Application Firewall

L7 Filter protects web servers from various web attacks by analyzing network traffic at OSI layer 7, blocking SQL injections, cross-site scripting, and other threats.

What is L7 Filter?

L7 Filter is an open-source web application firewall (WAF) that provides mod_security-like content filtering for internet facing systems. It inspects all network packets at layer 7 of the OSI model, the application layer, and it uses regular expressions and other content analysis methods to block malicious code injections, cross-site scripting (XSS), file inclusion attacks, and other threats aimed at web applications.

L7 Filter is highly configurable and flexible. It can analyze both HTTP/HTTPS traffic as well as non-HTTP protocols. Rules for filtering content can be written in XML to target specific URLs, query strings, referrers, etc. The rules support full regular expression pattern matching. Developers can also write custom rules to protect against new threats. L7 Filter runs on many Linux distributions and some BSD variants. It integrates with web servers like Apache, Nginx, and Lighttpd.

Some key benefits of L7 Filter include: protecting against OWASP Top 10 attacks like SQLi and XSS, high performance load balancing, DDoS attack resistance, real-time customizable reporting on threats, and virtual patching for urgent threats. Overall, L7 Filter provides robust yet flexible open source WAF capabilities to harden web applications from malicious attacks.

L7 Filter Features

Features

  1. Open-source web application firewall
  2. Protects web servers from attacks
  3. Analyzes network traffic at OSI layer 7
  4. Blocks SQL injections, cross-site scripting, and other web attacks

Pricing

  • Open Source

Pros

Open-source and free to use

Provides comprehensive protection against web attacks

Actively maintained and developed by the community

Flexible and customizable to meet specific requirements

Cons

Requires technical expertise to configure and maintain

May have performance impact on web servers

Limited support and documentation compared to commercial solutions

Official Links

Official Website
https://github.com/l7-filter

The Best L7 Filter Alternatives

Top Security & Privacy and Web Application Firewalls and other similar apps like L7 Filter

Here are some alternatives to L7 Filter:

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NetBalancer
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cFosSpeed
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Bandwidth Manager
Throttled Pro icon
Throttled Pro
Traffic Shaper XP icon
Traffic Shaper XP
Netifyd icon
netifyd
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