netfilter
Netfilter software comprises iptables, ipset, conntrack-tools, libnetfilter and more. It is the core of Linux firewalls and NAT. It consists of a set of hooks inside the Linux kernel and a number of utilities to manage callback functions.
TinyWall
TinyWall is a free software to harden and control the advanced firewall built into Windows Vista, Windows 7 and Windows 8. Tin ...
Firestarter
Firestarter is an Open Source visual firewall program. The software aims to combine ease of use with powerful features, theref ...
Comodo Free Firewall
Secure your system against internal attacks such as Trojan viruses / malicious software and external attacks by hackers. Safeg ...
CacheGuard-OS
All CacheGuard products and services are focused on delivering secured and optimized Web contents to our clients. To achieve t ...
Murus Firewall
Murus is a frontend for the OS X PF network firewall. From basic filtering to advanced proactive options, Murus allows to easi ...
Gufw
Gufw is an easy, intuitive way to manage your Linux firewall. It supports common tasks such as allowing or blocking pre-config ...
Nufw
NuFW is a GPL extension to Netfilter (that is Linux firewall). It adds identity-based filtering, i.e. it is possible to create ...
IceFloor
IceFloor is the first OS X free graphic frontend for PF. Configure the PF firewall in a few clicks using a very simple interfa ...