Description: GRC Port Scan is a free network scanner that checks open TCP and UDP ports on a target computer or device. It can scan common ports or a custom range, and has useful features like port mapping and reporting.
Type: software
Pricing: Free
Description: IPFire is an open-source firewall distribution based on Linux. It focuses on easy setup, good hardware support, and high flexibility. IPFire uses stateful packet inspection for network filtering and aims to provide high security while maintaining performance.
Type: software
Pricing: Open Source