In the first part of this chapter, networking is broken down into two distinct types: local-area networks (workgroups) and Internet connections. The distinction is less about the technology involved than about the intended use of each type. For example, a single network adapter can handle a workgroup connection and a fast Internet connection simultaneously.
The next few solutions involve some of the more interesting applications of networking, including sharing an Internet connection among all computers in a workgroup and building a workgroup across the Internet.
Instead of investing in a separate Internet connection for each computer in your home or office, it certainly makes sense to share a single connection among all the computers. The problem is that sharing an Internet connection requires either additional software configuration or special hardware. There are several ways to accomplish this; the only prerequisite is that all the machines be properly networked together, as described at the beginning of this chapter.
Any of three solutions should work with any modern, high-speed Internet connection, such as DSL, cable, or T1. If you have a dial-up connection, the first solution, Section 18.104.22.168, is the only one you’ll be able to use.
Note that whatever bandwidth is available though a given connection will be shared as well. The worst-case scenario is when two users download ...