IN THIS CHAPTER
Connecting to the Internet
Connecting to the Internet with Ethernet
Connecting to the Internet with dial-up
Connecting to the Internet with wireless
You won't tap into the real power of Linux until you have connected it to a network—in particular, the Internet. Your computer probably has an Ethernet interface built in, so you can just plug a LAN (local area network) cable into it to connect to a LAN (hub or switch), DSL bridge or router, or cable modem. Some computers, particularly laptops, may have wireless Ethernet hardware built in.
Your computer also may have a dial-up modem. Although much more rare these days, there are still cases where someone may have an older computer that has no Ethernet card. Or you may be in a situation in which you need to dial out over regular phone lines to reach your Internet service provider (ISP), and need to use this modem to get on the Internet.
This chapter describes how to connect your Linux system to the Internet. With broadband and wireless networks becoming more prevalent, Ethernet connections are becoming the most common means of connecting to the Internet. For dial-up connections, you'll see how to use kppp (a dialer GUI that is often packaged with KDE desktops).
Sharing Internet connections with multiple desktop systems or even your own mail or Web server is not that difficult to do from a hardware perspective. However, you need to consider some security and configuration issues when you set ...