TinyWall - Lightweight and non-intrusive firewall
nginx - A high performance free open source web server powering busiest sites on the Internet.
Windows 10 Firewall Control - Windows 10 Firewall Control: simple and exhaustive solution for applications network activity controlling and monitoring.
AWS Elastic Load Balancing - Amazon ELB automatically distributes incoming application traffic across multiple Amazon EC2 instances in the cloud.
GlassWire - Visualize network activity in detail, get notified when new apps access the network, look out for...
Google Cloud Load Balancing - Google Cloud Load Balancer enables users to scale their applications on Google Compute Engine.