Manage port forwardings via UPnP
Anti Spam SMTP Gateway
Add rule to windows firewall to block inbound and outbound traffic
A simple, portable port scanner
Blocking and monitoring of network traffic based on geography.
One of the most advanced DNS Proxy and DNS Firewall in one product.
Personal firewall for linux desktop and android phone
Server and Client applications for testing network connectivity.
Lomalarga is a VPN-like service based on SSH and Linux.