Learning Debian GNU/Linux By Bill McCarty 1st Edition September 1999 1-56592-705-2, Order Number: 7052 360 pages, $34.95 , Includes CD-ROM

Chapter 11 Getting Connected to the Internet

 

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11.2 Configuring Your Modem

Your modem is a peripheral device to Linux, like a CD-ROM drive, hard drive, or a mouse. Your modem will be connected to a serial port, which means that one of the serial devices in the /dev directory actually points to your modem. You may notice that there's also a file, /dev/modem, which serves as a placeholder for your modem. Initially this file doesn't point to anything. To simplify your operations, so that applications like minicomand seyon need only refer to /dev/modem, you can create a symbolic link from the serial device connected to your modem to /dev/modem.

To do so, login as root and issue the command:

ln -sf /dev/ttyS
X /dev/modem

where X is replaced by the number corresponding to the serial device that points to your modem. Table 11.1 shows how the proper command corresponds to the device by which your modem is known user DOS and Linux.

Table 11.1: Command to Create /dev/modem

DOS Modem Device	Linux Modem Device	Command
COM1	ttyS0	ln -sf /dev/ttyS0 /dev/modem
COM2	ttyS1	ln -sf /dev/ttyS1 /dev/modem
COM3	ttyS2	ln -sf /dev/ttyS2 /dev/modem
COM4	ttyS3	ln -sf /dev/ttyS3 /dev/modem

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11.1 Connecting to the Internet		11.3 Using wvdial

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