GNU/Linux Desktop Survival Guide
by Graham Williams
20190608 The Internet (interconnected networks) is the backbone of all communications and most services used today. Home, local and international networks provide access to resources beyond the local desktop computer, laptop, smartphone, or thing (as in the internet of things). Most computers (including smartphones) connect either through Ethernet (named in recognition of the nebulous aether world out there) whereby the connection is by wire, or through WiFi (as in HiFi but for computers) to connect wirelessly. On connecting to the Internet a unique address, called the IP (Internet Protocol) address, is assigned to the computer.
In this chapter we begin with a few sections that cover the basics of networking and the internet. This includes understanding the hardware required to connect to the Internet, such as modems and routers, and understanding how to connect cables between such hardware and your device. Your device will have a network interface (or two) each having a unique name and once connected to a network will have an IP address.
The remaining sections of the chapter cover a variety of topics presented in no particular order of importance, except alphabetically.