Category: Networking

Network Emulation with Linux Netem

Back in the day, I used an open source program called NistNET to emulate a WAN for my company’s network test lab on a linux machine.  I was able to solve a multitude of issues and test our applications in a WAN environment with this product.  Unfortunately, NistNET is no longer maintained, and until recently […]

SSH Tunnelling (aka Poor Man’s VPN)

Tunnelling of TCP traffic can be performed from the ssh command on Linux or with Putty on Windows, and can be thought of as a poor man’s VPN.  A VPN is a virtual private network, or a method of using a public network such as the internet to  securely transmit data via an encrypted “tunnel”. […]