HostsMan - HostsMan is a freeware hosts file manager and editor. Built-in hosts file updater
TinyWall - Lightweight and non-intrusive firewall
Gas Mask - Gas Mask is simple hosts file manager for Mac OS X.
SonicWall - SonicWall security solutions protects your network, systems, users and data from cyber threats.
simplewall - Simple tool to configure Windows Filtering Platform (WFP) which can configure network activity on...
pfSense - pfSense is a free and open source firewall and router that also features unified threat management, load balancing, multi WAN, and more