Configuring DialUp Internet Access

Most ISPs provide dial-up connections supporting PPP because it is a fast and efficient protocol for using TCP/IP over serial lines. PPP is designed for two-way networking; TCP/IP provides the transport protocol for data. One hurdle faced by new Ubuntu users is how to set up PPP and connect to the Internet. It is not necessary to understand the details of the PPP protocol in order to use it, and setting up a PPP connection is easy. You can configure the PPP connections manually using the command line or graphically during an X session using Ubuntu's Internet Configuration Wizard. Each approach produces the same results.

PPP uses several components on your system. The first is a daemon called pppd, which controls the use of PPP. The second is a driver called the high-level data link control (HDLC), which controls the flow of information between two machines. A third component of PPP is a routine called chat that dials the other end of the connection for you when you want it to. Although PPP has many "tunable" parameters, the default settings work well for most people.

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