Self-Hosted Firewalls

OPNsense includes most of the features available in expensive commercial firewalls, and more in many cases. It brings the rich feature set of commercial offerings with the benefits of open and verifiable sources.

CrowdSec is a security automation engine, using both local IP behavior detection & our community-driven IP reputation database.

Linux-based OS for transforming PCs into customizable routers with advanced firewall, VPN support, bandwidth control, wireless features, and flexible licensing.

NethServer is a CentOS-based Linux distribution for servers. The product's main feature is a modular design which makes it simple to turn the distribution into a mail server and filter, web server, groupware, firewall, web filter, IPS/IDS or VPN server.

OpenContrail is an Apache 2.0-licensed project that is built using standards-based protocols and provides all the necessary components for network virtualization–SDN controller, virtual router, analytics engine, and published northbound APIs.

Inspired by the honorable Fail2ban, it intend to provide a more lightweight (CPU wise) alternative, easy to configure and well documented.

SafeLine is a docker-based, easy to use, self-hosted free web application firewall (WAF) that protects web apps by filtering and monitoring HTTP traffic between a web application and the Internet.

DynFi® Firewall is the first French Open Source firewall. The system integrates many filtering features and allows for the first time to manage a large number of your appliances. Available for free, DynFi Firewall has two images (with VGA or Serial return) compatible with...

Zeroshell is a Linux distribution for servers and embedded devices aimed at providing the main network services a LAN requires. It is available in the form of Live CD or Compact Flash image and you can configure and administer it using your web browser.

Centralized manager for Open Source firewalls

Automate certain administrative tasks All your firewalls are accessible in 1 click Auto-connect your firewalls to DynFi Manager pfSense® and OPNsense® compatible manager.

NinjaFirewall (WP Edition) is a true Web Application Firewall. Although it can be installed and configured just like a plugin, it is a stand-alone firewall that sits in front of WordPress.

A modern replacement for Sophos UTM based on Sophos, Cyberoam and Astaro technology combined.

ModSecurity is an open source web application firewall. Working embedded in the web server, or standalone as a network appliance, it detects and prevents attacks against web applications.

Scrollout F1 is a free self-hosted email gateway designed for Linux & Windows administrators without advanced email security experience.

DANOS unified network operating system driving innovation across the networking stack. DANOS is based upon Vyatta and uses DPDK so it should be able to forward packets line rate (10G).

Linux based gateway for SMB with accent on security. With easy to use web-based configuration tool. With lots of additional features like mail server, VPN server, traffic shaping, DPI, traffic antivirus and etc.

Vulture is an application firewall that supports HTTP/2, detects behavioral anomalies and protects your web applications from Internet attacks.

Built to react fast in server farms environments (ISPs, HSPs, organisations...) Hookem-Banem is a log monitoring system which monitors logs being sent to a central server (syslog, file...) and on detection of malicious intent (repeated login failures, many failed RCPT commands...

A Real-time, Cross Platform, Firewall Management System. Check your firewall logs for any computer in the network, and set-up rules, in "real-time".

BBQ Firewall is a lightweight, super-fast plugin that protects your site against a wide range of threats. BBQ checks all incoming traffic and quietly blocks bad requests containing nasty stuff like eval(, base64_, and excessively long request-strings.

A secure, open-source WiFi router that simplifies network management with easy-to-use policies, device isolation, adblock and advanced DNS controls - customizable with plugins for added flexibility.

Vilfo OS is an easy and powerful software enabling multiple simultaneous connections to VPN servers. It contains firewall, split tunneling, DNS leak protection, VPN killswitch, notifications and much more.