firewall

evilsocket/opensnitch

OpenSnitch is a GNU/Linux interactive application firewall inspired by Little Snitch. - evilsocket/opensnitch

Safing Portmaster - Easy Privacy

Portmaster is a free and open-source application that puts you back in charge over all your computer's network connections. Increase your privacy and security. Get peace of mind.

Little Snitch for Linux

Discover powerful applications such as Little Snitch Mini, Little Snitch, LaunchBar and Micro Snitch.

Windows Firewall Control

Windows Firewall Control is a powerful tool which extends the functionality of Windows Firewall by adding outbound notifications and many other features.

Thomas-Krenn.AG

Konfigurieren Sie Ihren Rack Server, Storage Server, Tower, Workstation oder individuelle Server Lösung.

Protectli: Trusted Firewall Appliances with Firmware Protection

Secure your network with a trusted Protectli Firewall Appliance! Fully compatible with open-source software. US-based support, warranty and repairs.