NethServer - NethServer is an operating system for Linux enthusiasts, designed for small offices and medium...
TinyWall - Lightweight and non-intrusive firewall
ClearOS - A very good alternative for Windows Server, for free
Windows 10 Firewall Control - Windows 10 Firewall Control: simple and exhaustive solution for applications network activity controlling and monitoring.
OpenMediaVault - OpenMediaVault is the next generation network attached storage (NAS) solution based on Debian Linux.
GlassWire - Visualize network activity in detail, get notified when new apps access the network, look out for...