Email started as a way to send a file between early internetworked computers with little checking about who was sending what. Despite the 60-odd years that have passed, that’s more or less what ...

You can use various techniques, such as a VPN or proxy server, to quickly and easily change your IP address. Moe enjoys making technical content digestible and fun. As a writer and editor for over a ...

IP addresses on your company network consist of three parts: the network address, the host address and the subnet mask. The network address identifies your broad network, and host addresses identify ...

We just saw that the mask determines where the boundary between the network and host portions of the IP address lies. This boundary is important: If it is set too far to the right, there are lots of ...

Breaks down the five IP address classes in order to explain how they manipulate TCP/IP protocol functionality Before two or more computers can communicate with each other, a set of rules has to be in ...

Subnetting a Class B network can involve some serious thought! As a network administrator, you'll have to know it and know it well. Todd Lammle walks you through clear instructions and simple examples ...