A VPN lets two private networks talk securely across the public internet as if they were on the same private wire. In this lab you will conn...

Windows Defender Firewall can block outbound connections to a specific IP address, which is a quick way to stop a program or your whole PC f...

Network infrastructure is all the hardware, cabling and basic services that let devices talk to each other. In this post I will explain each...

VLANs let you split one physical switch into several separate broadcast domains, so the Sales department and the Marketing department stay o...

Almost every network today is a mix of wireless and wired: your phone and laptop ride Wi-Fi, while the access point, the desktop, and the se...