
Description: OpenSnitch is an open source application firewall for GNU/Linux systems. It monitors and controls network connections to protect against unwanted access and data leakage. It works by prompting the user to allow or deny connections.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: ufw (Uncomplicated Firewall) is a frontend for managing firewall rules in Linux. It aims to provide an easy interface for most common firewall operations while still allowing access to more complex configurations.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API