Technitium MAC Address Changer - Technitium MAC Address Changer (TMAC) is a freeware utility to instantly change or spoof MAC Address of any network card (NIC).
TinyWall - Lightweight and non-intrusive firewall
Axence netTools - Axence netTools is completely free of charge, both for home and commercial use – all you have to do is to register. A tool for professionals – and others.
SonicWall - SonicWall security solutions protects your network, systems, users and data from cyber threats.
Zabbix - Track, record, alert and visualize performance and availability of IT resources
Windows 10 Firewall Control - Windows 10 Firewall Control: simple and exhaustive solution for applications network activity controlling and monitoring.