Every machine on the the Internet has a unique number assigned to it, called an IP address. Without a unique IP address on your machine, you will not be able to communicate with other devices, users, ...

If a computer is unable to configure a valid Internet Protocol address, it can't connect to a network. If you plug a laptop directly into a modem with an Ethernet cable and receive a "No Valid IP ...

Step-by-step instructions to walk you through network-administration projects that can hone skills in IP addressing, Wi-Fi monitoring, documenting asset configuration, setting up DNS, and more. A ...