Alpine Linux v3.7  [ Free | 35 MB ]

Alpine Linux is an independent, non-commercial, general purpose Linux distribution designed for power users who appreciate security, simplicity and resource efficiency.
Coyote Linux v2.2  [ Free / Limitted | 9 MB ]

Coyote Linux is a single floppy distribution of Linux designed for the sole purpose of sharing and protecting an Internet connection. The floppy can be created using either a Microsoft Windows wizard, or by using a set of Linux shell scripts.In addition to being designed to have very low hardware requirements, the floppy release of Coyote Linux is able to provide the performance and uptime that is expected from any Linux based system.
ClearOS v7  [ Free / Limitted | 1 GB ]

ClearOS is an operating system for your Server, Network, and Gateway systems. It is designed for homes, small to medium businesses, and distributed environments. ClearOS is commonly known as the Next Generation Small Business Server, while including indispensable Gateway and Networking functionality. It delivers a powerful IT solution with an elegant user interface that is completely web-based. Simply put.. ClearOS is the new way of delivering IT.
FloppyFW v3.0  [ Free / Limitted | 9 MB ]

Brief Description
floppyfw is a router with the advanced firewall-capabilities in Linux that fits on one single floppy disc.
IPFire v2.19  [ Free| 170 MB ]

IPFire was designed with both modularity and a high-level of flexibility in mind. You can easily deploy many variations of it, such as a firewall, a proxy server or a VPN gateway. The modular design ensures that it runs exactly what you've configured it for and nothing more. Everything is simple to manage and update through the package manager, making maintenance a breeze.
IPCop v2.18  [ Free | 60 MB ]

What is IPCop
The IPCop Firewall is a Linux firewall distribution. It is geared towards home and SOHO users. The IPCop web-interface is very user-friendly and makes usage easy.
Below, you will find a copy of our Mission Statement. All members of the IPCop Firewall Team strive to meet these goals. By achieving these goals, the IPCop Firewall will be one of the major Linux Firewall distributions in the world.
Kerio Control v9.2.5  [ Free / Limitted | 230 MB ]

Intrusion Detection and Prevention
Kerio Control, a Unified Threat Management solution, incorporates a signature based packet analysis architecture known as Intrusion Detection and Prevention (IPS), which transparently monitors inbound and outbound network communication to identify suspicious activity. Depending on the severity of the activity, Kerio Control can log and block the communication. New signatures are regularly added to the rules database to defend against emerging threats.
MikroTik v5.26  [ Free / Limitted | 17 MB ]

What is RouterOS?
MikroTik RouterOS is the operating system of MikroTik RouterBOARD hardware. It can also be installed on a PC and will turn it into a router with all the necessary features - routing, firewall, bandwidth management, wireless access point, backhaul link, hotspot gateway, VPN server and more.
OPNSense v18.1  [ Free | 259 MB ]

✓ No license cost ✓ Free Download ✓ Best Open Source Firewall
OPNsense, the Open Source Firewall that is easy-to-use and protects your network.
► Easy User Interface
► Stateful Firewall
► Traffic Shaper
► Two-Factor Authentication ( 2FA )
► Captive Portal  .................
pfSense v2.4.3  [ Free| 305 MB ]

Securely Connect to the Cloud

Netgate’s® virtual appliances with pfSense software extend your applications and connectivity to authorized users everywhere, through Amazon AWS and Microsoft Azure cloud services. Network your employees, partners, customers, and other parties to share resources in site-to-cloud, cloud-to-cloud, and virtual private cloud (VPC) connectivity.
Tomato Firmware v1.28  [ Free| 9 MB ]

Tomato is a partially free HyperWRT-based, Linux core firmware distribution for a range of Broadcom chipset based wireless routers, most notably the older Linksys WRT54G series, Buffalo AirStation, Asus routers and Netgear WNR3500L. Among other notable features is the user interface, which makes heavy use of Ajax as well as an SVG-based graphical bandwidth monitor.
Untungle v13.21  [ Free / Limitted | 600 MB ]

Your Network. Your Rules.
Untangle NG Firewall takes the complexity out of network security-saving you time, money and frustration. Get everything you need in a single, modular platform that fits the evolving needs of your organization without the headaches of multiple point solutions.
Vyatta v5.0  [ Free| 165 MB ]

Vyatta's open, software-based approach to networking allows us to deliver a complete network OS that takes advantage of high-performance multi-core processor advancements and is portable to modern virtualization and cloud infrastructures. Vyatta's free oprn-source community edition software offers complete enterprise-class router, firewall, VPN, intrusion prevention, content filtering, and WAN load balancing.
VyOS v1.1.8  [ Free | 230 MB ]

New to VyOS?
VyOS is an open source network operating system that can be installed on physical hardware or a virtual machine on your own server, or a cloud platform . It is based on GNU/Linux and joins multiple applications such as Quagga, ISC DHCPD, OpenVPN, StrongS/WAN and others under a single management interface.
ZeroShell v3.8.2  [ Free / Limitted | 200 MB ]

Zeroshell is a Linux based distribution  dedicated to the implementation of Router and Firewall Appliances completely administrable via  web interface. Zeroshell is available for x86/x86-64 platforms and ARM based devices such as Raspberry Pi. Some advanced features of Zeroshell are:
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